Humanize AI text and check how human it reads
Estimated monthly website visits
Similarweb estimates for this domain, not active users. Only available observation months are shown; collection date is separate from the traffic period.
Collected Nov 10, 2026
This is our editors' assessment out of 5, not an average of user ratings. The viewpoints on this page are written by AI from what we know about the product. They are not customer reviews.
According to OpenAITools.app telemetry verified on 2026-11-10, StealthWriter (stealthwriter.ai) is an AI platform indexed under Humanizer AI (ranked #274 globally) generating 2.89M monthly visits with a month-over-month traffic delta of +387.76K (+15.5%). Its primary geographic market is United States (18.2% traffic share), and it operates on a Freemium pricing model. Top competing alternatives by monthly volume include Undetectable AI (3.11M visits/mo), Phrasly (1.21M visits/mo), ZeroGPT (32.86M visits/mo).
Actually passes AI detectors most of the time.
Sometimes scrambles sentence structure into nonsense.
Sentence-level edits are a lifesaver.
Free tier output is way too robotic.
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
Rewrites AI-generated drafts with natural phrasing, rhythm and flow, and lets you pick light, medium or aggressive rewriting depending on how much change you want.
Scan text before and after humanizing to see which sentences still look machine-written, with colour-coded sentence-by-sentence highlights.
Click any sentence to see alternative rewrite options and fine-tune the output until it matches your own voice.
Returns humanized text in seconds, with word limits per input ranging from 1,000 words on the free plan up to 5,000 words on paid tiers.
Daily allowances scale with your plan, from 10 humanizations a day on the free tier up to 2,000 a day on the Scale plan, for high-volume content workflows.
StealthWriter is built around two steps: scan and rewrite. The detector highlights sentences that still read as AI-written, and the humanizer then rewrites the text to smooth those passages out. Because you can run the detector again afterwards, it works as an iterative loop rather than a one-shot button, which makes it more practical for longer articles where only a few paragraphs sound robotic.
The tool targets people who draft with large language models but publish under their own name: bloggers, marketers, copywriters and researchers. Output can be tuned by rewriting level and, at the sentence level, by picking from alternative phrasings. Processing is quick — typically a matter of seconds — and the free tier with 10 daily humanizations and 1,000 words per input is enough to test whether the tone matches your writing style. Paid plans raise both the daily allowance and the maximum input length, which matters if you humanize long-form content regularly.
StealthWriter is a service of AiVantage LLC. On privacy, the company states that text submitted for humanizing or scanning is not stored after processing, not shared with third parties and not used for training. It is best treated as a drafting and polishing assistant: it improves how naturally AI-assisted text reads, but you should still review facts, claims and citations yourself before publishing.
Turn AI-drafted blog posts and articles into natural-sounding prose before publishing, using the detector to find the paragraphs that still sound generic.
Rewrite AI-generated marketing copy so it reads with a consistent human voice across landing pages, emails and social posts.
Circulate AI-assisted research summaries and reports that read naturally, with a quick detector pass to catch obviously machine-written lines.
Standardise tone across a team's AI-assisted output with repeatable rewrite levels, and use daily quotas to match expected publishing volume.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | StealthWriter | 2.89M | +15.5% | 56% direct | Freemium | Current |
| 1 | Undetectable AI Provides robust multi-detector testing alongside humanization, but often operates on stricter usage limits than StealthWriter. | 3.11M | +17.5% | 75% direct | Freemium | vs Undetectable AI |
| 2 | Phrasly Combines AI humanization with integrated writing tools, offering smoother collaborative editing than StealthWriter's simpler interface. | 1.21M | +17.9% | 46% direct | Freemium, Subscription | vs Phrasly |
| 3 | ZeroGPT Focuses heavily on high-accuracy AI detection while including a humanizer tool, prioritizing detection testing over rewriting. | 32.86M | +19.7% | 25% direct | Freemium, Paid | vs ZeroGPT |
| 4 | GPTZero Industry-standard AI detection platform relied on by educators, though its text humanization features are secondary. | 23.25M | +32.5% | 32% direct | Freemium, Paid | vs GPTZero |
| 5 | HumanizeAI.pro Delivers quick, conversational text rewriting to bypass AI detection, but lacks dedicated built-in detector testing suites. | 9.65M | +26% | 40% direct | Free | vs HumanizeAI.pro |
| 6 | AI Humanize Converts machine-written prose into natural-sounding text efficiently, though with fewer customization options for writing style. | 2.15M | +8.1% | 39% direct | Freemium, Paid | vs AI Humanize |
Provides robust multi-detector testing alongside humanization, but often operates on stricter usage limits than StealthWriter.
Provides robust multi-detector testing alongside humanization, but often operates on stricter usage limits than StealthWriter.
Combines AI humanization with integrated writing tools, offering smoother collaborative editing than StealthWriter's simpler interface.
Combines AI humanization with integrated writing tools, offering smoother collaborative editing than StealthWriter's simpler interface.
SpecialistFocuses heavily on high-accuracy AI detection while including a humanizer tool, prioritizing detection testing over rewriting.
SpecialistFocuses heavily on high-accuracy AI detection while including a humanizer tool, prioritizing detection testing over rewriting.
SpecialistIndustry-standard AI detection platform relied on by educators, though its text humanization features are secondary.
SpecialistIndustry-standard AI detection platform relied on by educators, though its text humanization features are secondary.
Delivers quick, conversational text rewriting to bypass AI detection, but lacks dedicated built-in detector testing suites.
Delivers quick, conversational text rewriting to bypass AI detection, but lacks dedicated built-in detector testing suites.
Converts machine-written prose into natural-sounding text efficiently, though with fewer customization options for writing style.
Converts machine-written prose into natural-sounding text efficiently, though with fewer customization options for writing style.
SpecialistRigorous content integrity and AI detection checker designed for publishers, but lacks direct text humanization tools.
SpecialistRigorous content integrity and AI detection checker designed for publishers, but lacks direct text humanization tools.
SpecialistOffers versatile paraphrasing and vocabulary adjustment for academic writing, but is not specifically optimized to bypass AI detectors.
SpecialistOffers versatile paraphrasing and vocabulary adjustment for academic writing, but is not specifically optimized to bypass AI detectors.
Humanize AI text and check its AI score before you publish
Humanize AI text and check its AI score before you publish
Free AI humanizer that makes machine-written text read naturally
Free AI humanizer that makes machine-written text read naturally
SpecialistCross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
SpecialistCross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
