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Bulk File RenamerRename and organise hundreds of files at once.eSignDoceSignDoc runs a complete DocuSign-style signing workflow in five stages: upload your document, share aExcel Formula ExtractorUpload an Excel workbook (.xlsx, .xls, .xlsm or .xltx/.xltm) and this tool scans every sheet for formulasFile CompressorShrink images and files so they upload faster, email easily and take less space.File ConverterConvert images, documents and spreadsheets between popular formats without installing anything.File Converter HubThis page lists every conversion pair available in the AZRS file converter, grouped by type: image convertersFile Encryption ToolThis tool covers four related jobs in one interface, switched with a mode tab: encrypt a file with aImage to PDF ConverterTurn JPG, PNG and other images into a single PDF in seconds.Office File ConverterA general-purpose file converter that covers a wide grid of source and target formats in one interface: pickPDF MergerCombine several PDF files into one document in a few clicks.PDF SplitterSplit a PDF into single pages or pull out just the pages you need.Text ExtractorThis text extractor pulls readable text out of more than 25 file formats: scanned images and photos (OCR inVideo DownloaderPaste a video URL and this tool fetches its metadata first — title, uploader, thumbnail, view count, uploadBackground RemoverUpload a photo and this tool automatically detects the subject and removes everything behind it, giving you aForeground RemoverThis is the mirror image of a background remover: instead of keeping the subject and dropping the backgroundImage Color ChangerThis tool swaps specific colours in an image for new ones, driven by click-to-select colour pairs rather thanImage ResizerResize any JPG, PNG or WebP image using exact pixel dimensions, a percentage scale, or ready-made presetsAI HumanizerMake stiff, robotic text read like natural human writingAI Paraphrasing ToolThis paraphraser uses AI to rewrite your text while preserving its meaning, in one of 10 styles — StandardAI Text DetectorCheck text for AI-writing signals — free, in your browserAI Text SummarizerPaste text or upload a TXT, DOCX or PDF file (up to 10 MB) and get a concise summary in seconds.ASCII Art GeneratorTurn text into large ASCII banner letters, or a photo into ASCII artBinary & Text ConverterConvert text to and from four different number bases — binary, hexadecimal, octal and decimal — using aBinary / Hex / ASCII Text TranslatorConvert text to and from binary, hexadecimal and decimal ASCII codesBraille TranslatorTranslate English text to and from Grade 1 Braille Unicode patternsCase ConverterPaste any text and instantly convert it into more than 30 formats: everyday cases like UPPERCASE, lowercaseFancy Text GeneratorTurn plain text into 𝓯𝓪𝓷𝓬𝔂 Unicode stylesFind & Replace ToolRun multiple find-and-replace rules on a block of text at once, entirely in your browser.Lorem Ipsum GeneratorGenerate placeholder text for mockups, wireframes and design reviews in seconds.Markdown EditorWrite Markdown in a split-pane editor and watch the rendered HTML preview update instantly on the other sideMorse Code TranslatorTranslate text to Morse code and back, with audioNATO Phonetic Alphabet TranslatorSpell out any word using the NATO phonetic alphabet (Alpha, Bravo, Charlie…)Number to Words ConverterWrite numbers and amounts in wordsOnline NotesA private notes app for quick capture and organization: create notes with a title, color and type, pin theParaphrasing ToolReword sentences with new word choicesRandom Name & Username GeneratorGenerate random first names, full names or usernames instantlyRandom Quote GeneratorGet an inspiring, funny or thoughtful random quote, filterable by categoryRemove Duplicate Lines & Sort TextDedupe, sort, trim and reverse linesResume / CV Builder + ATS Score CheckerBuild a resume with a live preview, then score it against ATS parsing rulesRoman Numeral ConverterConvert numbers to Roman numerals and backText CleanerRemove extra spaces, blank lines and formatting junkText Diff CheckerPaste two versions of a text — two drafts, two code snippets, or two config files — and see exactly whatText Reverser & FlipperReverse text, words, lines or flip it upside downText to SpeechConvert written text into clear, natural-sounding audio in seconds.Typing Speed TestTest your typing speed (WPM) and accuracy with 12,000+ sentencesWord CounterThis word counter goes beyond a simple word tally.Word Search Puzzle GeneratorType a list of words and get a printable word search puzzle grid with a matching answer keyQR Code GeneratorGenerate a fully customised QR code from any text or URL, then style it far beyond a plain black-and-whiteAge CalculatorCalculate exact age in years, months and days between a birth date and any target date (usually today).Amazon FBA Profit CalculatorReal per-item profit and margin for Amazon FBA, with the fulfillment fee auto-calculated from your weight and dimensionsAppliance Electricity Cost CalculatorEstimate how much it costs to run an appliance based on its wattage, hours used and your rateBig Mac Index Currency ComparatorCompare real purchasing power between countries using The Economist's real published Big Mac Index dataBill Splitter & Tip CalculatorSplit a bill and tip between any number of peopleBMI CalculatorCalculate your Body Mass Index (BMI) from your height and weight, in either metric (cm/kg) or imperialBody Fat Percentage CalculatorEstimate body fat percentage using the US Navy circumference methodBreathing Exercise TimerA guided breathing pacer for box breathing and 4-7-8 breathingBusiness Days CalculatorCount business days, calendar days and working hours between two dates, aware of real public holidays for 100+ countriesCalorie & TDEE CalculatorDaily calories to lose, maintain or gain weightCompound Interest CalculatorCalculate how a lump sum or a regularly contributed savings amount grows with compound interest over time.Countdown Timer & StopwatchOnline countdown timer, stopwatch and lap timerCredit Card Payoff Calculator — Minimum vsSee the real interest and time you save by paying more than the minimum on one credit cardCurrency ConverterConvert between world currencies using up-to-date exchange rates.Daily Water Intake CalculatorHow much water should you drink each day?Days Between Dates CalculatorCount days, weeks and months between datesDebt Payoff CalculatorCompare the snowball and avalanche methods to pay off multiple debtsDiscount CalculatorWork out the sale price and the amount you save on any discounted item.DoorDash / Uber Eats Commission CalculatorReal restaurant delivery-platform commission by service tier, auto-calculated into your net revenue per ordereBay Fee CalculatorReal eBay final value fee and net payout, auto-calculated from your sale price and categoryEtsy Fee CalculatorReal Etsy listing, transaction, payment processing and ad fees, auto-summed from your sale priceEV Charging Cost CalculatorReal electric vehicle charging cost per charge, per mile and per tripEvent Countdown Page CreatorBuild a live countdown to any date — wedding, launch, birthday — with an embeddable snippetFraction CalculatorAdd, subtract, multiply and divide fractions with stepsFreelance Rate CalculatorWork out the hourly or project rate you actually need to charge as a freelancer to hit your target income.Fuel Cost CalculatorTrip fuel cost by distance, efficiency and priceGCD & LCM CalculatorGreatest common divisor and least common multipleGPA CalculatorCalculate your Grade Point Average from individual course grades and credit hours.Grade CalculatorCalculate your final course grade from weighted categories like homework, quizzes, exams and participation.Graphing CalculatorPlot any mathematical function instantly in your browser — polynomials, trigonometric functionsGrocery Price Comparison CalculatorWork out which size or brand is really cheaper per unitHabit TrackerTrack daily habits with a streak calendar, saved on your deviceHidden Cashflow AnalyzerFind the recurring costs quietly draining your monthly budget: forgotten subscriptions, small daily habitsHourly to Salary CalculatorConvert an hourly wage to weekly, monthly and yearly pay — before and after real taxesInflation CalculatorSee what an amount of money from any year since 1913 is worth today, using real US CPI dataInvestment CalculatorProject how an investment grows over time using compound interest, including optional regular contributions.Invoice GeneratorCreate and print a professional invoiceLive Cryptocurrency PricesLive prices, 24-hour and 7-day changes and a coin converter for the top cryptocurrenciesLive UV Index & Sun Safety CalculatorReal live UV index for your exact location right now, plus how many minutes until sunburn risk based on real forecast dataLoan EMI CalculatorWork out your Equated Monthly Instalment (EMI) for any personal, auto or business loan.Meeting Cost CalculatorSee the real running cost of a meeting, live, based on attendee count and pay rates — a real number, not an abstractionMeeting Time Planner Across Time ZonesFind a meeting time that works across several time zones at onceMercari Fee CalculatorReal Mercari selling fee and payment processing fee, auto-calculated into your true net payoutMortgage CalculatorEstimate your monthly mortgage payment from the home price, down payment, interest rate and loan term.Moving Checklist GeneratorA room-by-room checklist and timeline for moving houseOven Temperature & Cooking ConverterConvert oven temperatures between Fahrenheit, Celsius and gas mark, with fan-oven adjustmentOvertime Pay CalculatorReal overtime pay at time-and-a-half or double-time, plus your total paycheck for the weekPaycheck Frequency Comparison CalculatorCompare your real take-home pay per check across weekly, biweekly, semimonthly and monthly payPayPal vs Stripe Fee CalculatorCompare real PayPal and Stripe payment processing fees side by side, plus reverse 'what to charge to net $X'Percentage CalculatorWork out any percentage problem instantly: what percentage one number is of another, what a percentage of aPhone Storage Calculator — How Many Photos &See how many photos or how many hours of video actually fit in your phone's storagePlanet Visibility TonightReal astronomical calculation of which naked-eye planets are above the horizon tonight from your exact locationPoshmark Fee CalculatorReal Poshmark seller fee and net payout, auto-calculated from Poshmark's real flat fee structurePregnancy Due Date CalculatorEstimate your due date and pregnancy weekPrime Number CheckerIs it prime? Factorise big numbers instantlyPrintable Calendar & Planner GeneratorGenerate a printable monthly or yearly calendar for any month and yearProfit Margin CalculatorMargin, markup, profit and break-evenQuadratic Equation SolverSolve ax²+bx+c=0 with steps, roots and vertexRandom Number GeneratorRandom numbers, dice rolls and coin flipsRandom Team & Group GeneratorSplit a list of names into random, balanced teams or groupsRecipe Unit Converter & ScalerConvert cups, grams and ounces, and scale a recipe up or downRent Affordability Calculator — How Much RentSee the real maximum rent you can safely afford from your income and actual expensesRent vs Buy CalculatorCompare the true cost of renting against buying a home over timeResistor Color Code CalculatorDecode a resistor's colour bands into its resistance value, or encode a value into bandsRunning Pace CalculatorPace, speed, finish times & race predictionsSalary CalculatorConvert your salary between annual, monthly, weekly, daily and hourly pay, and estimate your take-home paySavings Goal CalculatorHow long to reach your goal, or how much to saveScientific CalculatorA full scientific calculator in your browser, covering everything from basic arithmetic to trigonometryShopify Transaction Fee CalculatorReal Shopify payment processing rates by plan and payment method, auto-calculated into your net payoutShopping List & Budget TrackerA shopping list with a running total so you never go over budgetSleep CalculatorFind the best bedtime or wake-up timeStartup Cost Calculator — Itemized BusinessBuild your own itemized startup cost list and see your real total, category breakdown and runwayStatistics CalculatorMean, median, mode, standard deviation & moreStock AnalysisType a ticker such as AAPL, MSFT or NVDA and this tool builds a single 0-100 score from four partsTabata / HIIT Interval TimerA configurable work/rest interval timer with rounds, sound cues and a visual countdownTax CalculatorEstimate your federal income tax based on your income, filing status and standard deductions, using currentTime Zone ConverterConvert times between cities and time zonesTip CalculatorCalculate the tip and total bill for a restaurant check, and split it evenly between any number of people.Travel Packing List GeneratorBuild and check off a packing list for any tripTyping / Data Entry Job Earnings CalculatorA realistic monthly earnings estimate for typing, data-entry or transcription workUnit ConverterConvert between units instantly: length, weight, temperature, volume, area, speed, time, pressure, energy andUnit Price ComparatorCompare grocery and shopping prices by weight, volume or item to find the real best valueVAT / GST / Sales Tax CalculatorAdd or remove VAT, GST or sales taxWalmart Marketplace Fee CalculatorReal Walmart Marketplace referral fee by category, auto-calculated into your net payoutWeather ForecastCurrent weather, 24-hour chart and 7-day forecast for any city20-20-20 Eye Break TimerA screen-break timer that follows the 20-20-20 rule for eye strainAdd Watermark to PhotosStamp text or a logo watermark on your photos with opacity, rotation and tilingAir Quality Index by CityLive air quality, PM2.5 and pollutants for any city with health adviceAspect Ratio CalculatorFind a ratio and resize images or videos correctlyAudio Cutter & TrimmerCut, trim or remove parts of an audio file and download as WAVAudio Format ConverterConvert audio between WAV and MP3 in your browserAudio Pitch & Tempo ChangerChange an audio file's real pitch and tempo independently, using a real time-stretching algorithm, in your browserAudio Recording Quality CheckerReal DSP analysis of an uploaded audio file — detects clipping, silence, mono/stereo and dynamic range issuesBarcode GeneratorCreate Code 128, EAN-13, UPC-A, EAN-8 and Code 39 barcodes as PNG or SVGBattery Status CheckerSee your battery level, charging state and time remaining live in the browserBlue Light Filter & Screen DimmerAdd a warm-tone overlay and extra dimming to your screen for evening useBlur & Redact ImageHide faces, names, numbers and addresses in a screenshot or photo before you share itBrowser Feature & Codec Support TestSee which web features, video/audio codecs and image formats your browser supportsBrowser Privacy & Fingerprint TestSee exactly what websites can learn about your browser without askingBusiness Card MakerDesign and download a print-ready business cardChmod Permissions CalculatorLinux file permissions: octal, symbolic & commandsClick Speed TestHow many clicks per second can you do? Test 1 to 60 secondsCoin Flip, Dice Roller & Random PickerTrue-random coin flips, dice (d4–d100), yes/no decisions and a list pickerColor Blindness SimulatorSee any image as people with protanopia, deuteranopia or tritanopia see itColor Contrast CheckerCheck text and background contrast for accessibilityColor Converter & Contrast CheckerHEX, RGB, HSL converter with WCAG contrastColor Palette ExtractorPull the dominant colours out of any image as HEX, RGB and HSLColor-Blind-Safe Palette GeneratorGenerate a set of colors that stay visually distinct for protanopia, deuteranopia and tritanopia, not just for typical visionComputer Speed TestBenchmark your computer or phone in 10 seconds and compare devicesContract/PDF Redline Diff ViewerCompare two PDF, text or Word documents and see a redline of every changeCredit Card Number ValidatorCheck whether a card number passes the real Luhn checksum used by card networks, or generate test numbersCron Expression GeneratorBuild and explain cron schedules with next run timesCSS Box Shadow GeneratorDesign box shadows visually and copy the CSSCSS clamp Fluid Typography CalculatorGenerate a CSS clamp() value for font sizes that scale smoothly between viewportsCSS Flexbox Playground & GeneratorVisually build a flexbox layout and get the generated CSSCSS Gradient GeneratorCreate linear, radial and conic gradients with CSS codeCSS MinifierPaste your CSS or upload a .css file and shrink its size by stripping comments, collapsing unnecessaryCSV to SQL INSERT GeneratorConvert a real CSV file into real SQL INSERT statements, with automatic column type detection, ready to runCSV ⇄ JSON ConverterConvert CSV to JSON or JSON to CSV instantly in your browserDead Pixel Test & Screen Checker11 full-screen colours, 15 test patterns, pixel fixer and an inspection reportDecibel MeterMeasure noise levels with your microphone — with A-weighting, min/max and alertsDiceware Passphrase GeneratorGenerate a long, truly random, memorable passphrase from real dice-equivalent word selectionDigital MagnifierUse your device's camera as a zoomable, high-contrast magnifying glassDisposable Email CheckerCheck whether an email address is from a known throwaway/temp-mail domain before you rely on itDomain Age & Expiry CheckerFind out when a domain was registered, when it expires and who the registrar isDuplicate File FinderFind exact duplicate files by comparing their content, not just the nameEmail Setup CheckerTest your domain's email authentication and get a score with fixesExact Time & Clock Accuracy CheckSee the exact time and how many milliseconds your device clock is offExcel/Sheets Formula ExplainerPaste an Excel or Google Sheets formula and get a real, step-by-step structural breakdown of exactly what it computesEXIF Viewer & Photo Metadata RemoverSee what a photo reveals — GPS location, camera, date — and remove it in one clickFavicon GeneratorTurn any logo into a complete favicon set — ICO, PNGs, manifest and HTML tagsFile Hash & Checksum VerifierCompute a file's real SHA-256, SHA-1 and MD5 checksum in your browser and compare it to an expected hashGamepad & Controller TesterTest every button, stick, trigger and vibration — and check for stick driftGIF Maker from ImagesTurn a series of photos into an animated GIFHandwriting Practice Sheet GeneratorCreate printable dotted-line handwriting practice sheets for any textHash GeneratorGenerate cryptographic hashes for text or files using MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512HTML Entity Encoder / DecoderEncode or decode &, <, © and moreHTML FormatterThis HTML formatter takes a snippet or a whole page and does one of three things: it beautifies the markupHTTP Status Code ReferenceSearch or browse every standard HTTP status code with its real meaning and common causesIBAN ValidatorCheck whether an IBAN is structurally valid and see its country, check digits and bank identifierImage CropperCrop, rotate and flip photos with aspect-ratio presets — download as PNG, JPG or WebPImage Format ConverterConvert images between PNG, JPG, WebP, BMP and GIF entirely in your browserImage Noise ReducerReduce real grain and sensor noise in a photo using an actual pixel-level denoising filter, right in your browserImage to Base64 ConverterTurn an image into a Base64 data URIImage Upscaler & SharpenerEnlarge a small image and sharpen the result using real multi-step resampling and an unsharp maskInstalled Font CheckerFind out which fonts are installed on your device and preview themInternet Speed TestMeasure download, upload, ping and jitter in about 30 secondsJavaScript Minifier & BeautifierStrip comments and excess whitespace from JavaScript, or re-indent minified code to read itJSON Formatter, Validator & BeautifierFormat, validate and minify JSON with clear error locationsJWT DecoderPaste any JSON Web Token and instantly see its decoded header, payload and signature, color-coded forKeyboard TesterDetects MacBook, Windows or phone, shows the right layout and tests every keyLive Aircraft Tracker Near YouSee real aircraft currently flying near your location right now, using live public ADS-B flight-tracking dataLive Earthquake TrackerSee recent earthquakes worldwide on a live map and list, straight from the USGSMAC Address Lookup & FormatterValidate a MAC address, reformat it, and look up its likely hardware vendor from its OUI prefixMarkdown Live Editor & PreviewerWrite Markdown on the left, see the rendered preview update live on the rightMarkdown to PDF ConverterPaste Markdown and download a clean, real-text PDF with headings, lists, bold, code blocks and tablesMeme GeneratorAdd classic top/bottom captions to any image and download your memeMicrophone TestCheck your mic level live, and record a 5-second test to hear yourselfMind Map & Outline BuilderBuild a nested outline and see it rendered as a visual mind mapMonitor Refresh Rate TestMeasure the real refresh rate and frame time of your screenMouse Tester & Polling Rate TestTest every button, the wheel, double-click faults and your mouse polling rateNumber Base ConverterBinary, octal, decimal, hex & any base 2–36Online Alarm ClockFree alarm clock with sounds, repeat days, snooze and quick timers — right in your browserOnline Metronome & Tap TempoA precise metronome with tap tempo, accents, time signatures and subdivisionsOnline RulerA real-size on-screen ruler you calibrate with a credit cardOnline TunerTune any instrument with your microphone — live pitch, note and centsOnline Voice RecorderRecord audio in your browser, pause, play back and download as WebM/M4A or WAVPaper Size Reference & ComparisonLook up exact A-series, B-series, Letter and Legal paper dimensions in mm, inches and pixels at any DPIPassword Breach CheckerFind out if your password appeared in a data breach — without sending itPassword GeneratorCreate strong, random passwordsPassword Strength & Crack-Time CheckerReal entropy-based analysis of a password's actual strength and an estimated real-world crack time, computed locallyPassword-Protected ZIP Creator & ExtractorCreate a real password-protected, AES-encrypted ZIP archive, or open one you have the password for — entirely in your browserPDF Form FillerFill in the real AcroForm fields of an uploaded PDF form and download the completed filePDF Page Numbers & Bates StamperAdd page numbers or sequential Bates numbers to a PDFPDF Page OrganizerDrag to reorder, rotate or delete PDF pages, then download the rebuilt filePDF Permanent Redaction ToolPermanently remove selected text and regions from a PDF by rebuilding it as a flattened image — not just a visual black boxPDF Splitter by Text MatchSplit a PDF into separate files automatically at every page containing a real text or regex match you specifyPDF to Images ConverterConvert every page of a PDF into a real, full-resolution PNG image and download them all as a ZIPPhoto Background BlurKeep a subject sharp and blur everything around it for a portrait-mode look, right in your browserPhoto Collage & Grid MakerArrange several photos into a grid or collage and download one imagePing TestMeasure your ping, jitter and packet loss to servers around the worldPPI / DPI CalculatorCalculate a screen's real pixel density (PPI) from its size and resolution, or the resolution needed to print at a target DPIPublic Holidays by CountrySee every public holiday for 100+ countries, find long weekends and export to your calendarQR Code & Barcode ScannerScan QR codes and barcodes with your camera or from an image — safelyQuick Sketch & WhiteboardA simple drawing canvas for quick sketches, diagrams and notes, exportable as an imageRegex Pattern Library & TesterA curated library of ready-made, real regex patterns for email, URL, phone, IPv4 and more — test any of them instantlyRegex Tester with Live Match HighlightingTest regular expressions with live highlighted matches and capture groupsScreen Color PickerPick the exact color of any pixel on your screen — any app, any window — using your browser's native eyedropperScreen Recorder & ScreenshotRecord your screen, a window or a tab with audio — no install, no watermarkSecret Note Link GeneratorEncrypt a note with a password and share it as a single link — nothing is stored on a serverShoe & Clothing Size ConverterConvert shoe and clothing sizes between US, UK, EU and CM using real published size chartsSignature GeneratorType your name and get a cursive signature image to downloadSpeaker & Headphone TestCheck left and right channels, balance and wiring on any speakers or headphonesSSL Certificate Batch CheckerCheck the real SSL/TLS certificate expiry, issuer and trust status of up to 20 domains at once, side by sideStorage Unit ConverterConvert bytes, bits, KB, MB, GB, TB and PB, showing both binary (1024-based) and decimal (1000-based) valuesSubnet / CIDR CalculatorEnter an IP and CIDR prefix to get network address, broadcast address, usable range and host countSubtitle Editor & GeneratorEdit, retime and export SRT/VTT subtitles, or auto-generate them from audio/videoSunrise, Sunset & Moon Phase CalculatorSunrise, sunset, twilight, golden hour and moon phase for any place and dateSVG Optimizer & MinifierShrink SVG file size by removing metadata, comments and excess precisionSVG to PNG / JPG ConverterConvert an SVG vector image to a PNG or JPG raster image at any pixel sizeTelegram & WhatsApp Group AnalyzerCheck a public Telegram or WhatsApp group before you join it.Temp Mail — Free Disposable Email AddressGet a free temporary email address in one click and read incoming mail instantlyTouch Screen TestCheck multi-touch, draw with your fingers and find dead zones on any touch screenUnix Timestamp ConverterConvert Unix time to dates and backUPC / Barcode Product LookupScan or type a real UPC/barcode number and look up real product information from a live public product databaseUUID GeneratorGenerate v4 UUIDs / GUIDs in bulkVideo Frame GrabberCapture any frame from a video as PNG, JPG or WebP — frame by frameVideo to GIF ConverterConvert a real video clip into an animated GIF with real frame-rate, size and trim-range controls, entirely in your browserVideo Watermark ToolStamp a real text or logo watermark onto every frame of a video and export a genuinely watermarked video fileVoice TypingDictate live and see your words typed out as you speak, using your microphoneWebcam TestTest your camera online — see the live picture, resolution and frame rateWebRTC Leak TestCheck whether your browser leaks your real IP address through WebRTCWebsite Favicon MakerGenerate a full favicon set from one image, in every size a browser needsWhat Is My Screen Resolution & Device InfoSee your screen resolution, window size, pixel ratio, browser, OS and GPUWhere Am I? IP & Location CheckerSee your public IP address, approximate geographic location (city, region, country), internet serviceWhich File Format Should I Use?Answer a few real questions and get an accurate, technically-grounded file format recommendation with the real tradeoffsWhite Noise & Focus Sound GeneratorPlay white, pink or brown noise and other focus/sleep sounds in your browserYouTube Thumbnail DownloaderGet every available resolution of a YouTube video's thumbnail, instantlyZIP Creator & ExtractorCreate ZIP files or open and extract them right in your browserAnchor Text Ratio AnalyzerEnter a URL and this tool crawls the page, collects every anchor text used in the links it finds, andContent Cannibalization CheckerEnter a domain and a target keyword, and this tool crawls the site (up to 50 pages), scores every page itCrawl Depth CheckerEnter a domain and this tool crawls it (up to 100 pages) while tracking exactly how many clicks each page isDNS LookupLook up A, AAAA, MX, NS, TXT, CNAME, SOA and CAA records for any domainDNS Propagation CheckerSee if a DNS change has spread by comparing Google and Cloudflare's global resolvers side by sideGoogle Indexation CheckerPaste up to 100 URLs and this tool checks each one live to confirm whether it's actually accessible —Internal Link FinderEnter a starting URL and this tool crawls the site (up to 100 pages), extracts keywords from every page'sIs Website Down? Website Status CheckerCheck if a website is up, its response time, IP and security headersKeyword CPC CalculatorEnter your total ad spend and total clicks for a campaign or keyword, and this tool instantly calculates yourKeyword Research ToolEnter a seed keyword and this tool pulls real, live keyword ideas from Google and Bing's own autocompleteMeta Tag GeneratorGenerate SEO, Open Graph and Twitter meta tagsReadability Score CheckerFlesch reading ease & grade level for any textRedirect Chain VisualizerEnter a URL and this tool follows every redirect it produces, hop by hop, up to 10 redirects deep, showingRobots.txt & Sitemap.xml ValidatorCheck robots.txt syntax and sitemap.xml structure for errors that block GoogleRobots.txt GeneratorCreate a robots.txt file for your websiteSEO AnalyzerEnter a starting URL and this tool crawls up to 40 pages of that site (following internal links, 8-secondSERP Title Pixel Width CheckerType in a title tag and this tool measures its actual rendered pixel width using the same Arial-basedSitemap vs Crawl ComparisonEnter a site's URL and this tool pulls the real URLs listed in its XML sitemap, separately crawls the liveSocial Share Preview SimulatorSee how your link looks on Facebook, X, LinkedIn and Google before you share itSSL Certificate CheckerCheck a domain's SSL/TLS certificate, expiry date, issuer and trust statusTech Stack DetectorEnter any public URL and this tool fetches the live page and its response headers, then scans for realThin Content DetectorEnter a domain and this tool crawls it (up to 100 pages), counts the real word count of each page's contentURL Slug GeneratorTurn titles into clean SEO-friendly slugsUTM Link BuilderBuild tagged campaign URLs for Google AnalyticsWebsite Speed TestEnter any URL and this tool fetches it live, timing the full response, measuring Time to First Byte (TTFB)Word Frequency CounterCount repeated words and keyword densityXML Sitemap GeneratorPaste a list of URLs and generate a valid sitemap.xml with lastmod, changefreq and priorityCitation GeneratorA good citation gives credit to your sources and protects you from plagiarism.DNA Sequence AnalyzerPaste any raw DNA sequence — from GenBank, Ensembl, NCBI, a FASTA file, or your own lab data — and run sixFlashcard MakerFlashcards are one of the most effective ways to learn because they force active recall: you try to rememberHomework PlannerA homework planner turns a messy pile of assignments into a clear, prioritised to-do list.Legal Cases LibraryWorld Law's Cases library is a searchable, filterable collection of legal cases from courts around the worldMole CalculatorMoleMath helps you solve the mole problems that appear in every chemistry course: converting between gramsMolecule ViewerChemScope lets you draw 2D chemical structures, view molecules in 3D and look up more than 900 compounds.Periodic TableA fully interactive periodic table with search-as-you-type (by element name, symbol or atomic number withStudy TimerA focus timer built around a large digit-style countdown you can adjust directly (click the up/down controlsWorld Law ComparisonWorld Law's Compare tool puts any two laws from the library side-by-side and uses AI to generate aWorld Law TimelineThe World Law Timeline lays out every law in the library chronologically by the decade it was enacted, fromAmharic KeyboardAZRS's online Amharic keyboard lets you type Ethiopic (Ge'ez) script in any browser.Arabic KeyboardAZRS's online Arabic keyboard lets you type Arabic script directly in your browser — no software, no browserArmenian KeyboardAZRS's online Armenian keyboard lets you type the Armenian alphabet in any browser.Bengali KeyboardAZRS's online Bengali keyboard lets you type Bangla script in any browser without software installs.Chinese KeyboardAZRS's online Chinese keyboard lets you type Simplified Chinese characters in any browser without installingGeorgian KeyboardAZRS's online Georgian keyboard lets you type the unique Mkhedruli script in any browser.Greek KeyboardAZRS's online Greek keyboard lets you type modern Greek and ancient Greek characters in any browser.Hebrew KeyboardAZRS's online Hebrew keyboard lets you type modern Hebrew and biblical Hebrew (with nikud vowel marks)Hindi KeyboardAZRS's online Hindi keyboard lets you type Devanagari script in any browser.Japanese KeyboardAZRS's online Japanese keyboard lets you type Hiragana and Katakana scripts in any browser without installingKorean KeyboardAZRS's online Korean keyboard lets you type Hangul script in any browser without installing a Korean IME orPersian KeyboardAZRS's online Persian keyboard lets you type Farsi script in any browser on any device.Russian KeyboardAZRS's online Russian keyboard lets you type Cyrillic script in any browser without changing system settings.Thai KeyboardAZRS's online Thai keyboard lets you type Thai script with tone marks and vowels in any browser.Turkish KeyboardAZRS's online Turkish keyboard lets you type Turkish text with all special characters — ğ, ş, ı, İ, ö, ü, ç —Urdu KeyboardAZRS's online Urdu keyboard lets you type Urdu Nastaliq script directly in your browser without any softwareVirtual KeyboardAZRS's virtual keyboard hub lets you type in Arabic, Urdu, Hindi, Persian, Hebrew, Russian, Chinese3D Model to GIF, PNG & Video Preview MakerTurn an STL, OBJ, 3MF or STEP file into a transparent PNG, turntable GIF or video3D Model Viewer & AnalyzerView any 3D model, measure it and check it's print-ready3D Print Cost CalculatorCost per print with quantity pricing, currency, G-code/STL import and a cost-split chart3D Print Orientation OptimizerFind the best print orientation for less support, speed, strength or surface3D Printer Calibration G-code GeneratorGenerate temperature tower, retraction, flow, max-flow, pressure advance & bed-level G-code3MF ⇄ STL ConverterConvert 3MF to STL and STL to 3MF, including multi-object slicer filesAdd Text, Logo or Base Plate to an STLEmboss or engrave text and SVG logos on any face of an STL, or add a flat base plateCAD Unit & Drawing Scale Converter16 units at once, drawing scales (incl. architectural), paper-fit scale and scale finderDrawing Sheet Border & Title Block GeneratorCreate ISO or ANSI drawing sheets with border, zone references and a filled-in title block as SVG or DXFDXF to STL Extruder — 3D Print from a DXFExtrude closed outlines in a DXF into a watertight STL with holes, scale and optional base plateDXF ⇄ SVG ConverterConvert DXF to SVG and SVG to DXF for laser cutters, CNC and CADEngineering Drawing Checklist — Title BlockInteractive checklist to catch missing items before you submit a CAD drawingFilament Weight ⇄ Length ConverterGrams, metres and cm³ for 16 materials, spool remaining, job check and cost per metreG-code Editor & Inspector — Insert PausesInsert filament changes, pauses, temperature/speed changes at a layer; strip & compressG-code Print Time & Filament Cost EstimatorAccurate print time with acceleration, plus 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distance, pace, splits, route map, GPX exportHeart Rate Zones CalculatorFind your 5 training zones and max heart rate by ageHip Hinge & Deadlift CounterCounts deadlifts, good mornings and hip hingesIdeal Weight CalculatorDevine, Robinson, Miller & Hamwi formulas plus a healthy BMI rangeInteractive Muscle MapTap a muscle to see what it does and the best exercises for itKick CounterCounts front, side and roundhouse kicks with your cameraKids PE Challenges & Class ScoreboardAnimal workouts, brain breaks and 60-second challenges with a scoreboardLateral & Front Raise CounterCounts every lateral or front raise to shoulder heightLeft-Right Balance & Symmetry TestCompare your left and right side: balance, squat, shoulders, push-upsLeg Day at HomeQuads, hamstrings, glutes and calves with a 3D coachLeg Raise CounterCounts lying leg raises and checks you lift toward verticalMacro CalculatorDaily calories and protein, carb and fat grams for your goalMeditation Timer with Guided Breathing & Bells3-30 minute sessions: guided breathing, body scan or silent with bells and ambient soundsMobility Screening TestDeep squat, toe touch, overhead reach and lunge, scored 0-3Morning Energy Workout5 or 10 minute wake-up workouts, including a no-jumping optionOne-Rep Max CalculatorEstimate your max lift from any set, with a training-weights tablePace Band & Split CalculatorPrintable splits for any race: even, negative or fast-start strategyPedometer for Your PhoneCounts steps with your phone's motion sensors, with distance and caloriesPersonal Records BoardAll your best lifts, rep records and run times in one placePlank Timer with Form CheckTimes your plank and warns you when your hips sag or liftProgress Photos with Before/After SliderPrivate photo timeline with a drag-to-compare before and after sliderPronunciation PracticeHear a model voice, say it yourself and get a word-by-word scoreProtein Intake CalculatorHow many grams of protein you need per day and per mealPush-Up Coach with VoicePick reps, sets & speed, then a voice says Down, Up, 1, 2, 3Quiet Cardio WorkoutApartment-friendly, low-impact cardio with a 3D coachRace Time Predictor & Training PacesPredict 5K to marathon times and get easy, tempo and interval pacesRep & Set TrackerLog weight, reps and sets, with an automatic rest timerRest Timer with VoiceRest timer between sets with voice alerts and auto-restartRun/Walk Interval Timer & Couch to 5KVoice-guided run/walk intervals: Couch to 5K, custom and speed playRunning Cadence & Music BPM CalculatorSteps per minute for your pace, and the pace for a song's BPMSenior Chair Exercises & Balance TestsChair workouts for older adults plus 30-second chair stand and balance testsShoulder Press CounterCounts every overhead press and checks you lock outSteps to Distance CalculatorConvert steps to km/miles, time and calories (and back)Strength Program CalculatorWeights for popular strength programs from your 1RMStrength Standards CalculatorHow strong are you? Bench, squat, deadlift levels by body weightStrength Workout for RunnersSingle-leg strength, glutes and core to run strongerStretch Routine Guide8 guided stretching routines with timers, sides and breathing cuesStretching Guides with Animations18 stretches with animated demos, steps, benefits and hold timesSweat Rate CalculatorHow much you sweat per hour and how much to drinkSwimming Calculators: Pace, Laps, Calories &Pace per 100 m, lap converter, calories burned and critical swim speedTennis Stroke AnalyzerForehand, backhand and serve: speed, rotation, knee bend, compare strokesText Reader with Highlighted WordsRead any text aloud and follow the highlighted wordTriceps Dip CounterCounts chair or bar dips from any angleVO2 Max CalculatorCooper, 1.5-mile, Rockport walk and resting heart rate methodsVoice CounterA voice counts out loud for you: up, down, by 2s, 5s or 10sWaist-to-Height & Waist-to-Hip RatioHealth-risk ratios from your waist, hip and heightWall Sit TimerTimes your wall sit and warns when you slide up or too lowWarm-Up Sets CalculatorRamp-up sets to your working weight, rounded to platesWeekly Workout PlannerChoose your days, goal and equipment, get a full week of workoutsWeight & Body Measurements TrackerTrack weight, waist, chest, hips, arms with charts and a goal lineWeight Loss Timeline CalculatorHow long to reach your goal weight, with a date and weekly projectionWorkout GeneratorPick muscles, equipment and minutes, get a full workout with animationsWorkout Log & History TrackerStreaks, a 20-week heat map and a log of every workoutYoga Flow BuilderBuild your own yoga flow from 50+ poses and let a voice guide youYoga Pose CheckerCamera checks your yoga pose joint by joint and tells you what to fixBrain Type Quiz — Fast Thinker, OverthinkerA short quiz that reveals your brain type with a shareable personality cardBroke Score — How Broke Are You Really?A funny but real 0-100% broke score from your income, spending and savingsCategory Rush GameName something in the category with a random letterClean Jokes TellerThousands of clean jokes with a punchline revealCompare Yourself to the WorldSee your estimated income and sleep percentile vs the world, based on cited averagesDigital Life Report — Brain Performance ScoreIn-page typing and reaction tests plus your habits, combined into one Brain Performance ScoreFive in a RowGomoku vs computer or a friend on one screenFocus Score Test — Real Timed Attention TestA real in-browser go/no-go attention test with a measured, timed scoreFuture Net Worth Simulator — Spend vs InvestCompare two real compound-interest projections: keep spending vs start investingGirls' Night Party GamesMost likely to... and Spill the Beans promptsGroup Story BuilderBuild a silly story one sentence at a timeHousie Tambola Number CallerNumber caller and ticket generator for HousieHow Well Do You Know Me?Friend and bride/groom quiz questionsLife in Numbers — How Much of Your LifeSee how many years you've spent asleep and on your phone, from your own numbersMafia Role DealerDeal secret Mafia roles and read the narrator scriptMancalaClassic Mancala vs computer or two playersMove-Out Readiness ScoreA real 50/30/20-style affordability score for moving out on your ownNever Have I Ever Questions1,200+ clean Never Have I Ever promptsOne Sentence About Your LifeA few quick picks generate one blunt, reflective sentence about where you're atOverthinking Score — Rumination Self-CheckA short self-report quiz based on real rumination-scale concepts, with a percentile scoreParty Bingo CardsBridal, baby shower, mehndi, birthday and girls' night bingoPass the Bomb GameHidden-timer party game: name one and pass it onPictionary Word GeneratorEasy, medium and hard drawing words with a timerRapid Fire Questions10 quick questions, 5 seconds eachRarity Score — How Rare Are You?An 8-question quiz that reveals how rare your everyday habits really areRiddles with AnswersBrain-teasing riddles, answer hidden until you tapRideshare Driver Profit Reality CheckReal effective hourly take-home after true vehicle costs, vs local minimum wageSilly Would You RatherAbsurd dilemmas with a group vote counterSleep Debt Calculator — Real Nights OwedReal arithmetic on how many full nights of sleep you're behind onSmarter Than Average QuizA 6-question logic trick-quiz with a percentile score vs a stated averageSticks GameTake 1 to 3 sticks; last stick losesSubscription Cost Reality CheckAdd your subscriptions and see the real annual total plus relatable comparisonsTeam Trivia BattleTeam quiz night with 4,600+ questionsText Personality AnalyzerPaste your own text for a heuristic style read — confident but impatient? Curious and detailed?Time Wasted on Phone — Lifetime CalculatorReal arithmetic on how many years of your life you'll spend on your phoneTongue Twister Challenge200+ tongue twisters to say three times fastTruth or Dare GeneratorClean truth and dare prompts, no repeatsTwo Truths and a LieTopic prompts and a score of who fooled the groupUndercover Word GameSpy word party game, pass one phone aroundWhere Should You Live? Personality ArchetypeA fun quiz matching your preferences to a place archetype — not real relocation adviceWho Am I? Guessing GameHeads-up charades with a timer, 400 wordsWould You Rather Questions4,500 would-you-rather dilemmasInheritance CalculatorCalculate Islamic inheritance distribution according to the Quranic fixed shares (Fard) and residuary sharesSadaqah CalculatorPlan and track voluntary charity (Sadaqah) alongside your income.Zakat CalculatorCalculate your annual Zakat obligation accurately across gold, silver, cash, investments and business stock.
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