Everything You Need to Humanize AI Content
Turn AI-assisted drafts into clear, natural writing in your own voice, including for non-native (ESL) writers. Check your draft with the built-in AI detector before you submit. Results vary by detector; no tool can guarantee a result.
SupWriter is a writing tool. Follow your school's or employer's rules on AI use.
AI Humanizer
Rewrite AI-assisted drafts so they read naturally in your own voice. Meaning stays, and the wording gets clearer — useful for non-native (ESL) writers too.
- Context-aware processing
- Natural vocabulary replacement
- Sentence restructuring
- Tone preservation
- 5,000 words per request (based on plan)
AI Detector
SupWriter includes an AI detector so you can check a draft before you submit. It is a pre-check based on one scoring model, not the detector your school or client uses. Results vary by detector, text length and topic, and no tool can guarantee a result. How we test AI detectors.
- AI detector with sentence-level highlights
- One scoring model
- Check a draft before you submit
- Results vary by detector
- Checks saved to your history (you can delete them)
AI Paraphraser
Rewrite any text with different wording while preserving the original meaning. Paraphrase and humanize in one step so the draft reads in your own voice.
- Multiple paraphrasing modes for any writing context
- Two-step pipeline: paraphrase then humanize
- Preserves original meaning and arguments
- 50+ languages supported
- Up to 5,000 words per request
Grammar Checker
Fix grammar, spelling, and punctuation errors instantly. Get corrected text that still reads in your own voice.
- Multiple checking modes for thorough correction
- Grammar, spelling, and punctuation correction
- Sentence structure improvement
- Corrected text that still reads naturally
- 50+ languages supported
Chrome Extension
Humanize AI text directly from any website with our free Chrome extension. One-click humanization, right-click support, keyboard shortcuts, and built-in AI detection — all without leaving your browser.
- One-click humanization from any website
- Right-click context menu integration
- AI detector with sentence-level highlights
- Keyboard shortcuts for power users
- Works on Google Docs, WordPress, Gmail, Notion & more
- Free to install from Chrome Web Store
Check a Draft Before You Submit
SupWriter includes an AI detector with sentence-level highlights so you can check a draft before you submit. It is a pre-check based on one scoring model, not the detector your school or client uses. Results vary by detector, text length and topic, and no tool can guarantee a result. How we test AI detectors.
Powerful Editing Features
Beyond humanization and detection, enjoy a full suite of writing tools designed for productivity.
Fix Selection & Ask AI
Select any text and instantly improve it with quick actions. Our AI understands context and makes intelligent suggestions.
- Improve Writing - Enhance clarity and flow
- Fix Grammar - Correct errors instantly
- Make Shorter - Condense without losing meaning
- Make Longer - Expand with relevant details
- Continue Writing - AI continues your thoughts
- Ask AI - Custom instructions for any task
Writing Tone & Content Type
Customize your output with specific writing styles and content types for perfect results every time.
Writing Styles
- Casual
- Formal
- Professional
- Academic
- Witty
- Persuasive
Content Types
- Essay
- Article
- Marketing
- Legal
- Technical
50+ Languages Supported
Humanize your AI content in over 50 languages. Write naturally in any language with full support for complex scripts and regional variations.
Advanced Humanization Features
Our AI humanizer uses advanced algorithms to transform AI-generated text into natural, human-like content.
Context-Aware Processing
Our AI understands context and maintains meaning while making text sound natural and human-written.
Sentence Restructuring
Automatically restructures sentences to vary patterns and eliminate AI-typical writing structures.
Natural Vocabulary
Replaces AI-typical words with natural human vocabulary while preserving the original meaning.
Adjustable Intensity
Control how much humanization is applied - from light touch-ups to complete rewrites.
Format Preservation
Maintains your original formatting, headings, lists, and document structure.
Instant Processing
Get humanized content in seconds, not minutes. Process up to 5,000 words at once.
AI Detector with Sentence-Level Highlights
An AI detector with sentence-level highlights for a pre-check before you submit. It is one scoring model, not the detector your school or client uses.
Sentence-Level Highlights
An AI detector with sentence-level highlights shows which sentences to reread. It is one scoring model, not the detector your school or client uses.
One Score
See one score for the draft. Results vary by detector, text length and topic, and no tool can guarantee a result.
A Pre-Check, Not a Verdict
Use the score before you submit. It is not a guarantee, and it is not the detector your school or client uses.
Real-Time Detection
Get instant results as you type or paste content. No waiting required.
Re-Check After Edits
Make changes and re-check to see how your edits affect the score.
Private & Secure
Each check is saved to your account history so you can compare runs. See the privacy policy for how text is processed and deleted.
Explore Our AI Writing Tools
Discover more ways to transform your AI content into natural human writing
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