AI Detector — instantly check if any text is AI-generated
Paste any text and get an immediate verdict — AI-generated or human-written. Your input text is highlighted in red or green based on the result, so you can see the verdict at a glance. Works on essays, articles, emails, reports and marketing copy. Free, unlimited, no signup, no API key — and 100% browser-side so your text never leaves the page.
What you'll use the AI detector for
Academic integrity
Spot ChatGPT, Claude or Gemini-generated essays, lab reports and discussion-board posts before they get marked.
Editorial & publishing
Verify freelance submissions before paying for them. The verdict stays stable even after the writer hand-edits a few sentences.
SEO content review
Audit blog posts, product descriptions and outsourced copy. Google's spam policies penalise low-effort AI content — catch it before it ships.
Hiring & recruiting
Sanity-check cover letters and writing samples — instantly see whether a submission was written by a human or by ChatGPT.
Compliance & legal
Run draft contracts, depositions or expert-witness statements through the detector when AI-authored content needs to be disclosed or excluded.
Personal QA
Sanity-check your own writing — if your draft trips the AI verdict, it is a sign your style has become too formulaic and could use more variation.
How to use the AI detector
Paste any text
Use the Paste button (reads from clipboard) or type directly. Works best with 200+ words — short snippets do not give a reliable signal on their own.
Click Analyze text
Press the Analyze text button. The whole check runs inside your browser in a fraction of a second — your text never leaves the page.
Read the verdict
The result banner shows AI-Generated or Human-Written.
See your text highlighted
Below the verdict, your input text appears highlighted in red for AI or green for human — the whole text in one colour so you can see the result at a glance.
Why use this AI detector
AI-generated text is everywhere — student essays, marketing copy, freelance submissions, fake reviews, blog spam, AI-bypass content. Spotting it by eye is hard, and most online AI detectors either cost money, demand a signup, or send your text to a third-party server.
This tool is different: completely free, no signup, no API key, no usage limit, and most importantly 100% browser-only. Your text never leaves the page — safe for confidential drafts, student work, contracts, and proprietary content.
Paste any text and get an instant verdict — AI-generated or human-written. Your input text is highlighted in red or green to match the result, so you can see it at a glance. Works on output from ChatGPT, GPT-4o, GPT-5, Claude, Gemini, Llama, Mistral, DeepSeek and every other major large language model.
Frequently asked questions
An AI text detector tells you whether a piece of writing was generated by a large language model (ChatGPT, GPT-4, Claude, Gemini, Copilot and similar) or written by a human. Paste the text, click Analyze text, and the tool returns a verdict in a second.
Yes — completely free, with no signup, no API key, no credit card and no usage limits. Run as many checks as you want, on as much text as you want.
No. Everything runs inside your browser — your text never leaves the page. Safe for confidential drafts, student essays, contracts and proprietary content. You can open DevTools → Network to verify nothing is uploaded.
The detector flags text generated by the major large language models — ChatGPT, GPT-4o, GPT-5, Claude, Gemini, Llama, Mistral, DeepSeek and others. It works on essays, articles, emails, reports, marketing copy, code comments and most kinds of natural-language writing.
No AI detector — including this one — is 100% accurate. Use it as a strong second opinion alongside human judgement. Accuracy is highest on samples of 200+ words; very short snippets do not give enough signal to be reliable on their own.
You get a clear verdict — AI-Generated or Human-Written — and your input text is highlighted in the matching colour so you can see the result at a glance.
Light hand-edits, formatting changes, smart-quote paste artefacts and most paraphrasing do not change the verdict. Heavy rewriting — sentence-by-sentence human paraphrase of the whole text — eventually does, which is the expected behaviour of any honest detector.