Detecting AI
Freemium
Paste or upload text files to scan for AI-generated patterns and review sentence-level highlights showing which passages may be machine-written, with no signup required.
About
Detecting AI is a free AI content detector for writing and copywriting work. It checks text to see if a machine wrote it.
You paste text or upload a file. It gives you a score and highlights sentences that look AI-made.
It runs on a mix of classifiers, not one detector. That is the pitch. The reality is more mixed.
Open it if you want a free first look and do not trust the score alone. Skip it if you need to prove something to a client or a school.
Who Detecting AI is best for
It fits some jobs, not others.
- Casual users who want a free, no-commitment tool: You pay nothing. You sign up for nothing. The tradeoff is you cannot trust the number it gives you.
- Educators verifying assignment authenticity: You get a quick signal. You must still read the work yourself. The score is not proof.
- Students self-checking before submission: You see what a detector might flag. You fix your writing before you turn it in.
- Content writers proving human authorship: You have a screenshot to show you tried. You still need better tools if a client pushes back.
- Students needing free basic AI detection: You get 5,000 characters per scan. No limits on how many times you check.
- Casual users checking single documents: You drop in one piece. You get a fast answer. You move on.
- Anyone wanting quick checks without signup: You open the page. You paste. You see results. No password required.
Best things about Detecting AI
These are the parts that work.
- Free with no usage limits: You check as much as you want. Most competitors charge or cap you.
- File and URL upload: You do not reformat everything. You drop in TXT, PDF, DOCX, or a web link.
- Sentence-level highlights: You see which lines flagged. You do not guess what to rewrite.
- Chrome extension: You check from your browser. You do not open a new tab every time.
Why you should ignore it
The score is not reliable enough for real stakes.
- It misses AI text: In one test, it scored a ChatGPT cover letter at 2.6% AI probability. The text was 100% machine-made.
- It struggles with short or structured content: Emails and lists score lower than they should. You get false confidence.
- It trusts paraphrased AI: Someone rewrites ChatGPT output. You see 72% human. You miss the cheating.
- No printable reports: You cannot hand proof to a boss or school. You only get the on-screen view.