July 8, 2026 · 5 min read

How to Check if Your Essay Is AI-Written — Free (Before You Submit)

Worried your essay reads like ChatGPT? Paste it into a free AI content detector and see the passages that look AI-generated — before your teacher runs the same check.

More and more schools run every submission through an AI detector. The problem: those detectors are imperfect, and even writing you did yourself can get flagged if it reads too formulaic. Before you hand anything in, it's worth checking your own work the same way your teacher will — so you can fix the parts that look robotic and defend the parts that don't.

Why human essays sometimes get flagged as AI

• Overusing transition words (furthermore, moreover, additionally) — a classic AI pattern.
• Uniform sentence length — humans vary a lot; AI tends to be even.
• Cliché phrases like "it's important to note" or "plays a crucial role".
• Em-dashes everywhere and assistant-style emojis (✨🚀) that leak in from AI drafts.

How to check your essay for free

• Step 1 — Open Skrubly's AI Content Detector and paste your text (or upload the Word/PDF).
• Step 2 — You get a clear verdict — Likely human, Mixed, or Likely AI — with the exact passages that read most AI-like highlighted.
• Step 3 — Rewrite those passages in your own voice, then re-check until it reads human.

The honest truth about AI detectors

No detector — not ours, not Turnitin, not GPTZero — is 100% accurate. They estimate; they don't prove. That cuts both ways: a low score isn't a guarantee, and a false flag on real writing is possible. Use this tool to improve and defend your own work, not to game a system. If you wrote it, keep your drafts and notes — that's the strongest proof there is.

One thing students forget: the file itself

Your Word or PDF also stores hidden metadata — sometimes literally "Created with: ChatGPT" or the tool you exported from. Strip that before you upload so the file doesn't give you away.