80+ Free Tools to Supercharge Your Productivity

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Big Mac Index Currency Comparator Image Noise Reducer (Denoiser) Audio Recording Quality Checker PDF to Images (PNG) Converter PDF Form Filler PDF Splitter by Text Match PDF Permanent Redaction Tool Password-Protected ZIP Creator & Extractor Video to GIF Converter UPC / Barcode Product Lookup Live UV Index & Sun Safety Calculator Planet Visibility Tonight SSL Certificate Batch Checker Live Aircraft Tracker Near You Audio Pitch & Tempo Changer Video Watermark Tool Password Strength & Crack-Time Checker Meeting Cost Calculator CSV to SQL INSERT Generator Password Generator UUID Generator Unix Timestamp Converter Color Converter & Contrast Checker Image to Base64 Converter Number Base Converter Aspect Ratio Calculator CSS Gradient Generator CSS Box Shadow Generator Color Contrast Checker (WCAG) HTML Entity Encoder / Decoder Chmod Permissions Calculator Cron Expression Generator Internet Speed Test What Is My Screen Resolution & Device Info Webcam Test Microphone Test Online Voice Recorder Screen Recorder & Screenshot Keyboard Tester Click Speed Test (CPS) Online Metronome & Tap Tempo Dead Pixel Test & Screen Checker Monitor Refresh Rate Test (Hz) Online Ruler (cm & inches, actual size) Speaker & Headphone Test (Left / Right) Password Breach Checker Exact Time & Clock Accuracy Check EXIF Viewer & Photo Metadata Remover Barcode Generator Gamepad & Controller Tester Mouse Tester & Polling Rate Test Touch Screen Test (Multi-Touch & Dead Zones) Battery Status Checker Browser Privacy & Fingerprint Test WebRTC Leak Test (VPN IP Check) Browser Feature & Codec Support Test Computer Speed Test (Browser Benchmark) Installed Font Checker Ping Test (Latency to Game & Cloud Servers) Online Tuner (Guitar, Ukulele, Violin & Chromatic) Decibel Meter (Sound Level Meter) Audio Cutter & Trimmer Video Frame Grabber (Screenshot from Video) Image Cropper Add Watermark to Photos Color Palette Extractor (from Image) Color Blindness Simulator ZIP Creator & Extractor Live Earthquake Tracker (USGS) Air Quality Index (AQI) by City Sunrise, Sunset & Moon Phase Calculator Public Holidays by Country Domain Age & Expiry Checker (RDAP) Email Setup Checker (SPF, DKIM, DMARC, MX) Coin Flip, Dice Roller & Random Picker QR Code & Barcode Scanner Online Alarm Clock Blur & Redact Image (Hide Text and Faces) Temp Mail — Free Disposable Email Address 20-20-20 Eye Break Timer Business Card Maker PDF Page Numbers & Bates Stamper Photo Collage & Grid Maker GIF Maker from Images Audio Format Converter Duplicate File Finder White Noise & Focus Sound Generator Blue Light Filter & Screen Dimmer Digital Magnifier (Camera Zoom) Voice Typing (Speech to Text) Website Favicon Maker Meme Generator Signature Generator Handwriting Practice Sheet Generator PDF Page Organizer (Reorder, Rotate & Delete) Subtitle Editor & Generator (SRT/VTT) Contract/PDF Redline Diff Viewer YouTube Thumbnail Downloader Favicon Generator (Multi-Size ICO & PNG) JSON Formatter, Validator & Beautifier Regex Tester with Live Match Highlighting Markdown Live Editor & Previewer SVG Optimizer & Minifier Image Format Converter (PNG, JPG, WebP, GIF, BMP) CSV ⇄ JSON Converter CSS clamp() Fluid Typography Calculator CSS Flexbox Playground & Generator Secret Note Link Generator Mind Map & Outline Builder Quick Sketch & Whiteboard Markdown to PDF Converter Subnet / CIDR Calculator Photo Background Blur Image Upscaler & Sharpener Disposable Email Checker Diceware Passphrase Generator IBAN Validator Credit Card Number Validator (Luhn Test) HTTP Status Code Reference MAC Address Lookup & Formatter JavaScript Minifier & Beautifier SVG to PNG / JPG Converter Storage Unit Converter (KB/MB/GB/TB) Shoe & Clothing Size Converter Paper Size Reference & Comparison Regex Pattern Library & Tester PPI / DPI Calculator File Hash & Checksum Verifier Color-Blind-Safe Palette Generator Screen Color Picker (Eyedropper) Excel/Sheets Formula Explainer Which File Format Should I Use? Image Noise Reducer (Denoiser) Audio Recording Quality Checker PDF to Images (PNG) Converter PDF Form Filler PDF Splitter by Text Match PDF Permanent Redaction Tool Password-Protected ZIP Creator & Extractor Video to GIF Converter UPC / Barcode Product Lookup SSL Certificate Batch Checker Live Aircraft Tracker Near You Audio Pitch & Tempo Changer Video Watermark Tool Password Strength & Crack-Time Checker CSV to SQL INSERT Generator Random Number Generator Days Between Dates Calculator Countdown Timer & Stopwatch Sleep Calculator Profit Margin Calculator Time Zone Converter Invoice Generator Statistics Calculator GCD & LCM Calculator Prime Number Checker Fraction Calculator Quadratic Equation Solver VAT / GST / Sales Tax Calculator Savings Goal Calculator Bill Splitter & Tip Calculator Fuel Cost Calculator Calorie & TDEE Calculator Daily Water Intake Calculator Running Pace Calculator Pregnancy Due Date Calculator Weather Forecast Live Cryptocurrency Prices Recipe Unit Converter & Scaler Travel Packing List Generator Moving Checklist Generator Habit Tracker Rent vs Buy Calculator Grocery Price Comparison Calculator Body Fat Percentage Calculator Debt Payoff Calculator (Snowball vs Avalanche) Shopping List & Budget Tracker Breathing Exercise Timer Printable Calendar & Planner Generator Unit Price Comparator (Cost Per Weight/Volume/Item) Event Countdown Page Creator Oven Temperature & Cooking Converter Tabata / HIIT Interval Timer Random Team & Group Generator Resistor Color Code Calculator Meeting Time Planner Across Time Zones Appliance Electricity Cost Calculator Hourly to Salary Calculator (After Tax) Rent Affordability Calculator — How Much Rent Can I Afford? 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Website Status Checker SSL Certificate Checker DNS Lookup Social Share Preview Simulator (Open Graph) Robots.txt & Sitemap.xml Validator DNS Propagation Checker XML Sitemap Generator Rarity Score — How Rare Are You? Life in Numbers — How Much of Your Life You've Used Broke Score — How Broke Are You Really? Brain Type Quiz — Fast Thinker, Overthinker or Creative Chaos? Smarter Than Average Quiz Where Should You Live? 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Force Balance Beam & Torque Moving Man: Position, Velocity & Acceleration Graphs Buoyancy & Density Lab Energy Skate Park Sound Wave & Frequency Simulator Kinematics Graph Matcher (Position-Time) Work & Energy Simulator Bernoulli's Principle & Fluid Flow Thermal Expansion & Bimetal Strip Center of Mass & Balance Ohm's Law Simulator (V = IR) Resistance in a Wire (R = ρL/A) Gravity Force Lab Under Pressure: Fluid Pressure & Depth Forces and Motion: Newton's Second Law John Travoltage: Static Electricity & Sparks Balloons & Static Electricity Magnet & Compass: Magnetic Field Lines Faraday's Law & Generator Lab Waves Intro: String Waves Fourier: Making Waves Normal Modes: Coupled Oscillators Density Lab: Mass, Volume & Identify the Material AC Circuits: Resistor, Capacitor & Inductor Coulomb's Law: Force Between Charges Charges and Fields: Electric Field & Voltage Hooke's Law: Springs and Forces Masses and Springs: Bounce Lab Capacitor Lab: Basics Projectile Data Lab: Air Resistance & Target Practice Magnets and Electromagnets Color Vision: How We See Colour Circuit Construction Kit: DC & AC Virtual Lab Energy Forms and Changes: Heat Transfer Bending Light: Refraction, Reflection & Prism Balancing Act: Torque & Seesaw Sound Waves: Two Speakers & Interference Special Relativity: Time Dilation & Length Contraction Lab Polarization of Light: Malus's Law Lab Gyroscopic Precession Lab Diffraction Grating & Spectrometer Lab Kirchhoff's Rules: Multi-Loop Circuit Lab Telescope & Microscope: Compound Optics Lab Thin-Film Interference Lab Standing Waves on a String: Tension & Harmonics Lab Conservation of Angular Momentum: Spinning Disks & Skater Lab Electric Potential & Equipotential Lines Lab Ladybug Motion 2D: Velocity & Acceleration Vectors Collision Lab: 2D Momentum & Kinetic Energy Resonance Lab: Driven Oscillators Torque & Rotational Inertia Lab Lunar Lander: Land Softly Physics Game Gear Train Simulator Pulley System Simulator Car Transmission & Gear Ratio Simulator Truss Bridge Builder & Load Tester LED Circuit Designer & Resistor Calculator Spring-Damper Vibration & Resonance Beam Bending & Stress Simulator 4-Stroke Engine & Otto Cycle Hydraulic Press & Pascal's Principle Wind Turbine Power Simulator Solar Panel Angle & Power Simulator HVAC & Heat Pump Simulator Rocket Thrust & Launch Simulator Gear Train & Mechanical Advantage Designer Structural Column Buckling Lab (Euler) Digital Filter Designer: Low-Pass & High-Pass Reinforced Concrete Beam Designer Vehicle Suspension & Shock Absorber Damping Lab Material Fatigue & S-N Curve Lab Fluid Pipe Network & Pump Sizing Lab Heat Exchanger Design Lab (LMTD & Effectiveness-NTU) PID Controller Tuning Lab Electrical Power Transformer & Transmission Line Lab Shaft Torsion & Angle of Twist Simulator Stress-Strain / Tensile Test Simulator Heat Conduction Through a Wall: Fourier's Law Simulator Heat Exchanger Simulator: Parallel-Flow vs Counter-Flow (LMTD) DC Motor Simulator: Torque, Speed & Back-EMF Transformer Simulator: Turns Ratio, Losses & Efficiency Digital Logic Gate Simulator PID Control System Simulator Pipe Flow & Reynolds Number Simulator Gas Laws Simulator Molarity & Dilution Simulator pH Scale Simulator States of Matter Simulator Acid-Base Lab (HCl & NaOH) Molecule Polarity Simulator Limiting Reagent & Stoichiometry Calculator Periodic Trends Explorer Buffer Solution Simulator Solubility Curve Explorer Atomic Interactions: Lennard-Jones Potential Molecules and Light: Greenhouse Effect Acid-Base Titration Simulator Precipitation Reactions Lab Heating Curve Experiment Distillation Setup Lab Paper Chromatography & Rf Values Calorimetry & Specific Heat Lab Beer's Law Lab: Absorbance & Concentration Atom Builder (Isotopes & Ions) Bohr Model of Hydrogen Atomic Orbital Visualizer (s, p, d) Photoelectric Effect Simulator Emission Spectrum Viewer Blackbody Spectrum & Wien's Law Quantum Wave Interference (Double Slit) Quantum Coin Toss (Superposition) Quantum Measurement: Stern-Gerlach Experiment Build a Nucleus: Protons, Neutrons & Stability Rutherford Scattering: Discovering the Nucleus Radioactive Decay & Half-Life Simulator Isotopes & Average Atomic Mass Mixer Chemical Equation Balancer Reaction Rate Simulator Collision Theory Simulator Chemical Equilibrium Simulator Catalyst & Activation Energy Enthalpy & Activation Energy Diagram Le Chatelier's Principle (Haber Process) Reaction Mechanism & Rate-Determining Step Organic Reaction Pathways Game Molecule Builder Molecule Shapes (VSEPR) Ionic vs Covalent Bonds 3D Molecule Viewer Orbital Hybridization (sp, sp², sp³) Resonance Structures & Delocalisation Galvanic Cell (Voltaic Cell) Electrolysis of Water Redox Tracker (Oxidation Numbers) Electroplating Cell & Faraday's Law Climate Chemistry: CO₂ & Temperature Water Purification Stages Ocean Acidification Simulator Natural Selection Simulator Punnett Square Calculator Predator-Prey Population Simulator Diffusion & Osmosis Simulator Enzyme Activity Simulator DNA Replication Game Neuron Firing Simulator Heart Pump & Cardiac Cycle Photosynthesis & Limiting Factors Cardiac Cycle & Wiggers Diagram Lab Respiratory System & Lung Ventilation Simulator Blood Flow & Circulatory System Simulator Neuron & Action Potential Simulator Enzyme Kinetics Laboratory DNA Replication & Protein Synthesis Simulator Cell Membrane & Osmosis Simulator Human Musculoskeletal Movement Simulator Human Digestion Simulator Reflex Arc & Nervous System Simulator Moon Phases Simulator Gravity & Orbits Sandbox Plate Tectonics & Earthquakes Weather & Cloud Formation Simulator Solar System Builder & Kepler's Laws Kepler's Laws of Planetary Motion Greenhouse Effect & Earth's Energy Balance Volcano Eruption & Magma Dynamics Lab Rock Cycle Laboratory Continental Drift & Plate Motion Simulator Mineral Identification Laboratory Mountain Building Simulator Groundwater & Aquifer Simulator Sediment Transport & River Erosion Lab Fossil Formation & Geological Time Simulator Earthquake & Seismic Wave Laboratory Geothermal Energy & Earth's Interior Simulator Gravitational Field & Escape Velocity Lab Stellar Life Cycle & H-R Diagram Simulator Exoplanet Detection Lab: Transit & Radial Velocity Solar & Lunar Eclipse Geometry Simulator Hubble's Law & Redshift Lab Carbon Cycle Simulator: Reservoirs & Fluxes Logistic Growth & Carrying Capacity Lab Water Cycle & Watershed Simulator Ozone Layer & UV Radiation Lab Ocean Acidification Lab Quadratic Function Explorer Unit Circle & Trig Explorer Linear Equation Explorer (y = mx + b) Probability Lab (Coins & Dice) Derivative Visualizer Integral & Area Under Curve Geometric Transformations 3D Geometry Viewer (Volume & Surface Area) Vector Addition Simulator Curve Fitting: Best-Fit Line & Regression Calculus Grapher: Derivative & Integral Plinko Probability: Galton Board Fraction Builder: Compare, Add & Equivalent Fractions Area Model Multiplication & the Distributive Property Central Limit Theorem: Sampling Distribution Simulator Sine & Cosine Wave Explorer: Amplitude, Period, Phase Exponential Growth & Decay Explorer Color Theory Lab Virtual Plant Growth Laboratory Photosynthesis Simulator: Inside the Chloroplast Plant Transpiration Laboratory Plant Hormone Simulator Phototropism & Gravitropism Lab Plant Nutrient Deficiency Laboratory Seed Germination Simulator Plant Water Transport: Xylem Simulator Flower Anatomy & Pollination Simulator Plant Genetics & Mendelian Inheritance Simulator AI Assistant AI Chat Code Assistant Project Maker Deep Research AI Summarizer Paraphraser AI Translator Transcription Student AI Tools Finance AI Tools AI Apps Saved Chats AI Settings Word Counter Case Converter Paraphraser Summarizer Find & Replace Diff Checker Lorem Ipsum Text to Speech JSON Formatter Base64 URL Encoder HTML Formatter CSS Minifier Regex Tester Hash Generator JWT Decoder Markdown Editor My IP / Location Notes App DNA Analyzer Group Analyzer Virtual Keyboards Arabic Keyboard Urdu Keyboard Hindi 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