The undetectable AI humanizer that makes your writing sound like you

Paste any AI-generated draft and get a completely rewritten, natural version in seconds, meaning intact, machine fingerprints gone.

Text settingsModel Heavy

Word limit 0 / 100

Tested against every major AI detector

GPTZeroZeroGPTTurnitinCrossplagAISEOWritefullOriginality.aiCopyleaksWinston AIGPTZeroZeroGPTTurnitinCrossplagAISEOWritefullOriginality.aiCopyleaksWinston AI

Join writers around the world

900+
teams onboard
1.4M+
active writers
9M+
documents processed
Professional writer
It cut my editing pass in half, and the rewrite still sounds like something I would have written myself.
Student
Fast, clean output every time. I have not had a flagged draft yet.
Content lead
The awkward phrasing that gives AI drafts away is simply gone, and the meaning of the original survives.
Journalist
Output quality is the real surprise here. It reads far more naturally than anything else we trialled.
Agency owner
We tested six rewriting tools across a month of client work. This was the only one we kept.
SEO consultant
Rankings held and the copy finally sounds human. That combination is rare.

Undetectable results

Detectors look for patterns that show up constantly in machine writing: predictable phrasing, uniform sentence length, vocabulary with no human variation. StealthGPT restructures sentences, rewords stock expressions and restores the small irregularities of real writing without changing what you meant.

The output reads more naturally, keeps its readability, and holds up when evaluated by detection tools and by people.

GPTZeroZeroGPTTurnitinCrossplagAISEO
Human score97
Stealth97%
Readability92%
Spelling & grammar99%

Sample run: 30 passages humanized, 0 flagged across five leading detectors.

How it works

Generate, humanize or detect right when you need it.

1

Paste your draft

Write it in any assistant you like, then drop the text straight into the humanizer. No formatting cleanup needed.

2

Humanize

StealthGPT rewrites at the sentence level, reshaping rhythm, phrasing and structure while keeping your meaning intact.

3

Verify and ship

Run the result through the built-in detector to confirm your score, then publish or submit with confidence.

Features

A full suite of tools for writing, humanizing and verifying content.

AI Humanizer

Rewrite machine-written text into fully natural prose that reads like a person wrote it.

AI Detector

Scan any passage for AI signals and get an instant human score before you publish.

Longform Writer

Generate complete essays and articles with real citations, humanized from the first draft.

Research Agent

Research, draft and refine in a single workflow instead of stitching five tools together.

How we compare

Everything you need to write, humanize, verify and improve AI drafts.

CapabilityStealthGPTTool ATool BTool C
Core features
AI Humanizer
Built-in detector
Longform writer
Research agent
Bypass performance
TurnitinStrongPartialPartialPartial
GPTZeroStrongStrongStrongPartial
Originality.aiStrongStrongPartialPartial
CopyleaksStrongPartialPartialWeak

Stop rewriting. Start humanizing.

Paste any AI text and see the difference in seconds.

Try it on your own text