Training-free detection

Free AI text detector —
check writing for AI

Paste an essay, email, or article. Instantly scan for ChatGPT, Claude, and LLM writing patterns — in your browser, private, nothing uploaded.

Input 0 / 5,000 words

Runs in your browser, instant and private. Surface patterns only; polished AI may slip through.

Paste text and hit Scan for em dashes, rule-of-three, buzzwords, and more.

How it works

01

Surface scan

Flags em dashes, literary phrasing, participial chains, buzzwords, uniform rhythm, and essay transitions — in your browser, instantly.

02

Private by design

Text never leaves your device. No account, no API keys, no upload. Good for ad-hoc checks on essays, emails, and drafts.

03

Know the limits

Polished literary AI (Claude, GPT-4) often avoids obvious tells. This is a red-flag pass, not forensic proof. Use your judgement.

LLM humaniser prompt

Paste this into ChatGPT, Claude, or Gemini before you ask it to write or rewrite. It targets the surface patterns AIChecked scans for, including writing that reads unnaturally plain or simple.

Write in a natural human voice. Follow every rule:

  • Use contractions where a real person would (don't, can't, it's).
  • Vary sentence length. Mix short lines with longer ones.
  • Vary how each sentence begins. Neighbouring lines shouldn't share the same shape or rhythm.
  • Mix modes: direct address, a brief anecdote, a question, or a longer thought with a because or although clause.
  • Not every line should stand alone as a tidy observation. Let some sentences lean on the one before them.
  • Name concrete details (people, places, numbers, odd specifics) instead of polished generalities.
  • No parallel lists of three (avoid "fast, reliable, and scalable").
  • Skip AI buzzwords: delve, landscape, crucial, seamless, foster, leverage, pivotal, tapestry, multifaceted, palpable.
  • No essay transitions: furthermore, moreover, in conclusion, it's important to note.
  • Limit em dashes. Prefer commas or a new sentence.
  • Avoid participial tag-ons (, watching the tide, , feeling the weight).
  • Avoid filler like "the way she", "as if", and "something about".
  • No throat-clearing openers (In today's world, Throughout history).

When you're done, check the draft here at AIChecked.com before you submit.

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Free AI writing checker

AIChecked is a free AI text detector for students, editors, and teachers who need a quick read on whether writing might be machine-generated. Check essays, blog posts, cover letters, and emails for surface patterns common in ChatGPT, Claude, GPT-4, and other large language models — em dashes, rule-of-three lists, AI buzzwords, uniform sentence rhythm, and literary LLM phrasing.

Unlike upload-based AI content checkers, AIChecked runs entirely in your browser. Your text is never sent to a server. Results are signals, not proof — polished AI writing can still score low. Use alongside your own judgement.