Try the AI Text Detector
Paste any text and get a transparent AI-likeness score based on the same statistical signals real detectors use: burstiness, sentence uniformity.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
Illustration. Open the tool for the real thing.
What is the AI Text Detector?
This detector analyzes your text entirely in your browser and scores how strongly it matches the statistical fingerprint of typical AI-generated writing: very uniform sentence lengths (low burstiness), heavy use of stock phrases like 'delve into' and 'it is important to note', few contractions, repetitive sentence openers and unusually even paragraph structure. Unlike black-box checkers, every signal is shown to you with its own score, so you can see exactly why the text was or wasn't flagged.
Be aware of what any AI detector — including paid ones like Turnitin and GPTZero — can and cannot do: they estimate probability from patterns, they are not proof, and they produce real false positives, especially for non-native English writers. Treat the score as one signal, never as a verdict on a person.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Every signal (burstiness, phrases, diversity…) is shown with its own sub-score, not a mystery number.
Analysis runs locally in your browser. Nothing is uploaded, stored or sent to any API.
Stock AI phrases found in your text are listed and highlighted so you can see the evidence.
The tool tells you its confidence and its limits instead of pretending to be certain.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
How it compares
A plain look at this tool next to the usual alternative.
| This text tool | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
How accurate is this AI detector?
Like all AI detectors, it estimates probability from writing patterns — it cannot prove anything. It is most reliable on longer, unedited text and least reliable on short or heavily edited text. No detector, free or paid, should be used as sole evidence against a writer.
Why was my own human writing flagged?
False positives are a known problem for every AI detector. Formal, uniform writing — common for non-native English speakers and academic styles — naturally shares patterns with AI text. That is exactly why scores should never be treated as proof.
What signals does it check?
Burstiness (variation in sentence length), lexical diversity, stock AI phrase density, repeated sentence openers, contraction rate, paragraph uniformity and punctuation patterns — the same families of signals commercial detectors use.
Is my text uploaded anywhere?
No. Everything runs in your browser with no API, no account and no storage. Your text never leaves your device.
How do I use the AI Text Detector?
1. Paste the text you want to check (100+ words gives the most reliable reading). 2. Read the overall AI-likeness score and verdict. 3. Expand the signal breakdown to see which patterns drove the score. 4. Review the highlighted stock phrases and flagged sentences in context.
More free tools
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Try the AI Text Detector now
Check text for AI-writing signals — free, in your browser. Free to use.
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