Free AI Text Checker — No Sign Up Required
Free AI text checker that reveals exactly why text looks AI-generated. Paste any text below and get a transparent breakdown of Unicode artifacts, AI vocabulary, writing style statistics, and homoglyph characters.
How This AI Detector Works
Most AI detectors give you a score with no explanation. This tool shows you exactly what was found. It runs four independent analyzers and combines their results into a weighted composite score:
- ●Unicode Artifacts (35%) — ChatGPT inserts em-dashes, smart quotes, zero-width spaces, and other special characters that humans rarely type. Finding multiple categories together (e.g. dashes + quotes + invisible characters) is a near-certain AI signal.
- ●AI Vocabulary (20%) — Words like "delve," "tapestry," and "moreover" appear 10-200x more in AI text than human writing. Flagged phrases include "it's worth noting" and "in the realm of."
- ●Stylometrics (30%) — Statistical analysis of sentence length variance, vocabulary richness, contraction usage, and sentence starter variety. AI text tends to be suspiciously uniform.
- ●Homoglyphs (15%) — Cyrillic and Greek characters that look identical to Latin letters, sometimes used to bypass detection tools.
What Makes Text Sound AI-Written
AI language models have stylistic fingerprints. They avoid contractions ("do not" instead of "don't"), use em-dashes instead of hyphens, prefer formal vocabulary, and produce sentences of remarkably similar length. Individually, none of these signals are proof — but together they paint a clear picture.
This tool is designed to be educational. Rather than a black-box verdict, you see every signal that contributed to the score. Use it to learn what AI writing looks like, to check your own writing, or to evaluate text from others.
Frequently Asked Questions
How accurate is this AI text checker?
This tool uses multiple detection signals (Unicode artifacts, vocabulary patterns, statistical analysis, and homoglyph detection) to build a composite score. It works best on texts of 100+ words. No AI detector is 100% accurate — treat results as indicators, not proof.
Does this tool store my text?
No. All analysis runs entirely in your browser. Your text never leaves your device — zero server calls, zero data storage.
What makes text sound AI-written?
ChatGPT and similar models leave detectable patterns: em-dashes instead of hyphens, smart quotes, overuse of words like "delve" and "moreover," unusually uniform sentence lengths, and avoidance of contractions. This tool checks for all of these.
Can I use this for detecting AI-written essays or homework?
Yes. Paste the text and review the breakdown. The transparent analysis shows exactly which signals were found, so you can make an informed judgment rather than relying on a single score.
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