Model rev 26-04 · faster & sharper
Writing that reads as you.
Turn AI-generated drafts into prose with rhythm, voice, and a pulse. Sentence-by-sentence rewrites that bypass every major detector — in English, Spanish, and Portuguese.
INPUT
0 words
Write or
to humanize it sentence by sentence.
Humanizing…
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No signup to try
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250 free words / day
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No card required
RECENT HUMANIZATIONS
Bypass
2 min ago
Cover letter — Stripe PM role
I've spent the last three years shipping product at companies that move fast, and I'm
Advanced
2 min ago
Blog draft — Why detection is broken
Detection tools were built on assumptions that stopped being true the moment GPT-4…
Standard
2 min ago
LinkedIn post — launch announcement
Today we shipped something I've wanted to build for years. It started as a side project and
As featured in
TechCrunch
Product Hunt
The Verge
Wired
Forbes
Fast Company
Detector bypass
Passes every scanner in the room.
We test against the six detectors educators and editors actually use. Bypass mode targets all of them.
0%
GPTZero
AI detected
0%
ZeroGPT
AI detected
0%
Turnitin
AI detected
0%
Originality.ai
AI detected
0%
Copyleaks
AI detected
0%
Sapling
AI detected
Before
• 97% AI detected
Furthermore, it is important to note that artificial intelligence has revolutionized numerous industries by automating tasks and enhancing efficiency. Moreover, the integration of AI technologies has facilitated unprecedented growth in productivity.
After
• 0% AI detected
AI has changed how a lot of industries work. It picks up the boring stuff and frees people to do better thinking. The payoff is real — teams ship faster than they did a decade ago.
How it works
Three steps. Roughly seven seconds.
01
Paste your draft
Drop in AI-generated text. We split it into sentences and assign each a stable ID.
02
Pick a mode
Standard for everyday polish. Advanced for deeper rewrites. Bypass for detector-grade output.
03
Read & refine
Every output sentence is paired to its source. Hover to see the swap; click to regenerate.
WHY IT'S DIFFERENT
A humanizer that thinks in sentences, not blobs.
We test against the six detectors educators and editors actually use. Bypass mode targets all of them.
01 · SENTENCE PAIRING
Every output sentence is locked to its source.
We split your draft into sentence IDs, batch them through the model, and stitch them back in order. Hover any sentence on the right to see exactly which input it replaced — and click to regenerate just that one.
S₁ · paired
"Furthermore, AI…"
S₁ · output
"So AI has…"
02 · SPEED
~7s for a full essay.
Parallel sentence batches finish faster than you can pour coffee.
0.8s
Essay · 800w
BATCH 1/4
QUEUED
03 · DIFF VIEW
See every word that changed.
Toggle diff and the swaps surface — old in red, new in green.
Furthermore
So
, AI has changed writing.
04 · LANGUAGES
EN · ES · PT
Each language has its own fine-tuned model — not a translation wrapper.
EN
ES
PT
FR·beta
DE·beta
05 · REGENERATE
Don't like one line?
Click any sentence on the output to re-roll just that one. No re-running the whole draft.
- S1 AI has rewritten the rules of writing.
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S2
System delivers long-form output
- S3 Note that quality varies by language.
06 · HISTORY
Every draft, kept.
Pro users get an unlimited timeline of past humanizations — searchable by date, mode, language.
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Filter by mode
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Search by keyword
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Export to .docx
07 · EXTENSION
Humanize anything you've selected.
The Chrome & Edge extension humanizes selections in Docs, Notion, LinkedIn, Gmail — without leaving the page.
Extension UI in Google Docs
08 · MOBILE APP
iOS & Android, coming next quarter.
Native apps with offline drafts, share-sheet integration, and syncing history. Join the early-access list at signup.
Mobile App Link
THE CRAFT
What separates a humanizer from a paraphraser.
RHYTHM
Sentence length variance.
AI writes in monotone — every sentence is 18-22 words. We mix in short jabs and long stretches the way humans actually do.
BURSTINESS
The signal detectors hunt for.
Perplexity + burstiness are the two metrics every detector watches. Our Bypass mode tunes both directly.
Perplexity
84.2
Burstiness
71.6
VOICE MATCH
Paste a sample.
Pro users can paste 200 words of their own writing — the model mimics tone, hedging, even punctuation tics.
VOCAB SWAP
Tier-3 phrasing.
We replace overused AI tells — "delve," "moreover," "furthermore" — with the words you'd actually say.
NO TRANSLATION
Native models.
Spanish and Portuguese aren't EN runs in a costume. Each has its own fine-tune, trained on its own corpus.
THREE MODES
One for every level of risk.
01
Standard
Balanced rewrites — keeps your meaning, smooths the rhythm.
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Sentence rhythm
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Speed
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Length retention
02
Advanced
Deeper sentence restructuring with stronger vocabulary swaps.
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Burstiness
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Detector strength
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Tone control
03
Bypass
Maximum variance — engineered to defeat detection scanners.
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Vocabulary swap
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Voice match
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Multi-language
USE CASES
Built for anyone who writes for someone else.
STUDENTS
Essays that read like you wrote them at 2am
Submit AI-assisted drafts with confidence. Pass detectors built into modern LMS platforms.
MARKETERS
Blog posts that don't smell like a model
Voice-consistent rewrites at scale. Keep your brand voice, lose the robotic tells.
RESEARCHERS
Plain-English summaries of dense ideas
Pro users can paste 200 words of their own writing — the model mimics tone, hedging, even punctuation tics.
FOUNDERS
Investor updates with a pulse
Turn AI-drafted updates into letters that sound like a human founder, not a chatbot.
SEO TEAMS
Listicles search engines actually rank
Defeat the AI-generated penalty without paying for ghostwriters.
TRANSLATORS
Localized drafts that read native
Run translated AI output through humanizer for native-sounding prose in EN, ES, PT.
VS . THE REST
Why teams switch to humanizer.ai
| FEATURES | HUMANIZER | HUMANIZER A | HUMANIZER B | HUMANIZER C |
|---|---|---|---|---|
| Sentence-level pairing |
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| 3 modes (Standard / Advanced / Bypass) |
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| Spanish & Portuguese models |
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| Diff view |
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| Regenerate single sentence |
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| Bypass GPTZero + Turnitin + Originality |
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| Free daily quota | 2,500 Words | 1,500 Words |
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1,000 Words |
| Chrome extension |
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240K
ACTIVE WRITERS
18.4M
WORDS HUMANIZED THIS MONTH
3
LANGUAGES LIVE
99.2%
DETECTOR PASS RATE
Reviews
What writers are saying.
“I write 12 blog posts a month. humanizer is the only step before publish.”
“Honestly the sentence-level diff view sold me. I can see exactly what changed.”
“Got my dissertation past three different AI scanners. Worth ten times the price.”
“We replaced two contractors with this tool. Quality went up, not down.”
Integrations
Wherever you write, we're already there.
The Chrome extension humanizes any selection inline. Native integrations ship monthly.
G
Google Docs
Live
M
Microsoft Word
Live
N
Notion
Live
S
Slack
Live
E
Editpad
Live
Languages
English first. Spanish & Portuguese close behind.
EN
English
All three modes. Production-grade.
ES
Español
All three modes. Trained on LATAM
PT
Português
Standard and Advanced. Bypass arrives Q3.
FR
Français
Standard only. Join the waitlist.
DE
Deutsch
Standard only. Join the waitlist.
IT
Italiano
Standard only. Join the waitlist.
Trust & Security
Your drafts stay yours.
Never trained on data.
Your writing is never fed back into the model. Period.
30-day deletion
Inputs and outputs auto-delete in 30 days. Pro users can purge instantly.
SOC 2 Type II
Audited and compliant. Enterprise DPA available on request.
GDPR + CCPA
Your data is yours. Export or delete in one click.
FAQ's
The honest answers.
How does humanizer.ai differ from a paraphraser?
Most paraphrasers swap synonyms. We rewrite sentence-by-sentence at the rhythm and structure level — closer to how a human editor would line-edit a draft.
Will my output pass AI detectors?
Our Bypass mode is built to clear every major detector. Results vary by source text, but most humanized drafts come back flagged as fully human.
Do you train on my writing?
No. Your inputs and outputs are never fed back into the model, and they auto-delete in 30 days.
Which languages are supported?
Humanizing works across English, Spanish, Portuguese, and a growing list of additional languages selectable in the tool.
Is there a word limit?
Free accounts include 250 words per day. Paid plans raise the daily limit and unlock longer single passes.
Can I cancel anytime?
Yes. Plans are month-to-month with no contract — cancel whenever you like from your account settings.
Ready to sound like yourself?
Start free. No card. 250 words on us.
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No signup to try
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250 free words / day
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