Stealthwriter
StealthWriter · Writing
StealthWriter is an AI humanizer that rewrites machine-generated text into natural prose, with a built-in detector for writers and marketers.
About Stealthwriter
What Is StealthWriter
StealthWriter is a web tool that takes text written by AI and rewrites it until it reads like something a person typed. You paste a draft, pick a rewrite strength, and get back a version with more natural phrasing, rhythm, and flow. The site pairs the humanizer with an AI detector, so you can scan text before and after a rewrite and see which sentences still look machine-made.
The pitch is simple: plenty of people use AI to draft blog posts, emails, essays, and product copy, then worry the output sounds robotic. Many use it as an AI content rewriting tool to fix that. StealthWriter targets that gap, and it's aimed at anyone trying to bypass AI detection without losing readability. The detector flags suspicious sentences with color-coded highlights, and you can click any line to swap in an alternative rewrite.
Its main limit is volume. The free tier caps you at 10 humanizations a day and 1,000 words per input, and even paid plans stop at 5,000 words per input. Heavy users hit those ceilings fast. So can an AI text rewriter really make a draft pass as human? That depends on the text and the detector. StealthWriter bets that a steady rewrite, plus a scan to check the result, gets you most of the way there.
Getting Started
- Go to stealthwriter.ai and paste your AI-generated text into the input box, or create a free account for saved history and higher limits.
- Pick a rewrite level. Light keeps more of the original wording, while medium and aggressive push harder toward a natural human voice.
- Run the AI detector on the draft to see which sentences get flagged, then humanize the text.
- Review the result and click any sentence to choose from alternate rewrites if a line feels off.
- Copy the final text out and use it wherever you need it.
Product Information
A quick look at Stealthwriter's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Writers and bloggers
- Marketing teams
- Students
Tasks
- Humanizing AI drafts
- Pre-publish checking
- Rewriting single paragraphs
Scenarios
- Cleaning up a blog post drafted with ChatGPT before you hit publish
- Editing cold outreach emails so they don't read like a template pulled from a tool
- Polishing social captions written quickly with an AI assistant
Key features
AI Humanizer
The core function takes AI text and rewrites it with more natural phrasing. You choose light, medium, or aggressive rewrite levels, so you can nudge a draft slightly or push it much closer to a human voice. The output keeps your meaning while changing how it sounds. That's the deal.
Built-in AI Detector
A detector runs your text through scan versions V1 and V2 and scores how likely it's to read as machine-written. It highlights specific sentences, which is more useful than a single pass/fail number because it points you to the lines worth fixing.
Deep Scan with Sentence Highlights
Deep scan breaks text down sentence by sentence and color-codes what still needs work. It turns an abstract "this sounds like AI" feeling into a concrete list of lines to revisit. Useful for editing.
Alternative Rewrites
When a sentence still reads wrong, you click it and pick from several rewriting options. This gives you finer control than accepting one bulk rewrite, and it lets you fine-tune the tone toward your own voice.
Ghost Rewrite Models
Paid plans add Ghost 5.2 Pro and Ghost Legacy models, while the free tier runs Ghost 5.2 Mini. The name refers to the rewrite engines behind the humanizer, and stronger models are pitched for higher-volume and higher-quality output.
Speed and Daily Volume
The tool returns results in seconds and scales daily usage by plan, from 10 humanizations a day on free up to 2,000 a day on the top self-serve tier. Response times also improve as you move up plans.
Pros and cons
Pros
- Free plan with no credit card, so you can test the humanizer and detector before paying
- Detector plus humanizer in one place means you can check text and fix it without switching tabs
- Sentence-level highlights make it clear which lines need work, not just an overall score
- Multiple rewrite levels let you match how aggressively you want the text changed
Cons
- The 5,000-word per-input cap applies across all self-serve plans, so long documents need splitting
- No public API, which rules it out for teams that want to humanize text inside their own workflow
- Daily humanization limits start at just 10 on free, so casual testing runs out quickly
Frequently asked questions
It rewrites AI-generated text so it reads more like human writing, and includes an AI detector that scores and highlights machine-sounding sentences. You paste text, choose a rewrite level, and get a revised version back.
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