AI Writing Style Analyzer
Scores your text 0–100 across 13 weighted writing-pattern signals — phrase clichés, sentence rhythm, vocabulary diversity, repetition, readability consistency and more — with a full explainable breakdown. Pro Mode adds Developer Mode, JSON export and one-click rewrites.
in your browser only. Nothing is ever uploaded.
Free AI Writing Style Analyzer — Check Your Writing Before You Submit It
If you're searching for a college essay AI checker, there's a good chance you want to know one thing before you hit submit: does this read like it was written carefully by a person, or does it sound stiff, repetitive and formulaic? That's exactly what this tool measures. It scans your text for the kind of overused phrasing, uniform sentence rhythm and repeated wording that make writing feel mechanical — the same surface-level patterns a careful human editor would notice on a re-read — and gives you a Writing Style Score with a full, traceable breakdown of exactly what triggered it.
This is not the same category of tool as the AI detection system your university actually uses to evaluate submissions. It's a free, self-review tool built for the moment before you submit anything — an essay, a cover letter, a blog post — when you want an honest second opinion on whether your own writing sounds natural.
What this tool actually does: analyzes your text with 13 weighted, explainable signals — phrase clichés, sentence rhythm, vocabulary diversity, repetition and more — and produces a 0–100 Writing Style Score plus a full explanation of every contributing factor. It never claims to replicate, access, or predict the result of any proprietary institutional detector.
How to Check Your Writing — Step by Step
What AI Checker Do Colleges and Canvas Actually Use?
This is one of the most common questions students search for, and it deserves a straight answer: most universities rely on Turnitin's built-in AI writing detection, which is usually integrated directly into Canvas or whichever learning management system your school uses, through the same submission pipeline that already checks for plagiarism. Canvas itself doesn't build its own AI detector — when people search what AI checker does Canvas use, the honest answer is that Canvas surfaces whichever third-party detection service your specific institution has licensed and connected, which is Turnitin at most schools, though some use standalone tools like Originality.ai or GPTZero instead.
If you've searched for an AI checker like Turnitin or an AI checker similar to Turnitin hoping to preview what your institution's system might flag, it's worth being upfront: no publicly available tool, including this one, can reliably replicate Turnitin's actual output, because Turnitin's detection model is proprietary and trained on data this tool has no access to. What this analyzer offers instead is a genuinely different, complementary use — an honest, explainable check on your own writing style, built to help you write more naturally in the first place rather than to predict a specific institutional result.
This tool deliberately does not claim compatibility with Turnitin, Canvas's integrated detection, or any other proprietary system. That's a design choice, not a limitation we're hiding — a rule-based, fully explainable writing-style checker and a trained institutional classifier are different kinds of tools solving different problems.
How This Compares to Grammarly, Winston AI and Other Checkers
Searches like is Grammarly AI checker accurate come up often because Grammarly's AI detection feature is one of the more widely used checkers, built on a trained machine-learning model. It's generally considered a reasonable signal, though like every AI detector — including institutional ones — it isn't perfect and can occasionally flag human-written text incorrectly, particularly formal or non-native English writing. Winston AI takes a similar trained-model approach and is aimed partly at educators through a paid subscription. Other named tools like Writer.com's checker and detectors built on Hugging Face models follow the same general pattern: a trained classifier producing a probability score.
This tool works differently on purpose. Instead of a trained model producing an opaque probability, every signal here is a deterministic, explainable rule you can inspect — Pro Mode's Rule Explainability Report shows the exact rule ID, the metric that triggered it, and how many points it contributed to your score. That transparency is the trade-off: this tool won't match a trained classifier's raw predictive accuracy, but you can see precisely why it flagged what it flagged, every time.
- Free, no account, no browser extension needed
- Fully explainable — every flag traces to a specific rule
- Runs entirely in your browser — nothing uploaded
- 0–100 Writing Style Score with confidence rating
- Not a trained model — won't match proprietary detector accuracy
- The system most universities actually grade against
- Trained proprietary classification model
- Not available for students to self-check before submitting
- Licensed by institutions, not accessible standalone
- Trained machine-learning detection models
- Widely used, generally reasonable accuracy
- Full features often behind a paid subscription
- Results presented as a score without rule-level explanation
Most use Turnitin, usually connected through Canvas or another LMS. Some schools use Originality.ai or GPTZero instead.
No — it's a web page that works in any browser with no install. Nothing to add to Chrome or Firefox.
No. Turnitin uses a proprietary trained model this tool has no access to — this is a separate, explainable writing-style check.
No. All analysis runs locally in your browser — your text is never sent to a server.
Frequently Asked Questions
Common questions about AI writing checkers, institutional detectors, and how this tool differs
Most universities rely on Turnitin's AI writing detection, typically integrated directly into Canvas and other learning management systems through the same pipeline that already checks for plagiarism. Some institutions instead use standalone tools like Originality.ai or GPTZero. Canvas doesn't build its own detector — it surfaces whichever third-party tool your institution has licensed.
No. Institutional tools like Turnitin analyze submissions against proprietary, trained classification models this tool has no access to. This is a separate, rule-based writing-style analyzer for self-review before you submit anything — it doesn't claim compatibility with or equivalence to any proprietary detector.
Grammarly's AI detection uses a trained machine-learning model and is generally a solid signal, though like all AI detectors it isn't perfect and can produce false positives. This tool takes a different, fully transparent approach — a rule-based engine where every flagged pattern traces to a specific, explainable rule rather than a black-box model score.
Winston AI is a commercial, subscription-based detector built on trained classification models, marketed partly toward educators. This tool is free, runs entirely in your browser, and uses an openly explainable rule-based system — you can see exactly which of the 13 scoring signals contributed to your result and why.
No. It's a web-based tool that runs entirely in your browser tab, not a browser extension you install. Open it in any modern browser on any device — nothing to add or configure.
Yes — that's the main use case. Paste your essay in and the analyzer highlights overused phrases, uniform sentence rhythm, repeated wording and other patterns that read as stiff or formulaic. It's a self-review writing tool, not a way to predict what any specific institutional detector will report.
Not reliably, and that isn't what this tool is for. Institutional detectors analyze different signals using trained models this tool has no access to, so a lower score here doesn't translate to a specific result elsewhere. Use it to make your own writing sound more natural, not to test against a system you can't see.
No. All analysis happens locally in your browser using JavaScript — your text is never transmitted to a server, stored in a database, or seen by anyone else.