A private AI humanizer.
Unlike web tools that take your text into a browser form, Humanizer is a native Mac and iOS app. Your inputs are processed by Anthropic's Claude under API terms, never used to train any model, and deleting your account erases everything within 30 days. No data sale, no third-party analytics, no ads.
Never used to train AI
Your text is processed by Anthropic's Claude under API terms and is not used to train any model — ours or anyone else's. It is rewritten and returned, not harvested.
No data sale
There is no data brokerage in the business model. Pro is paid through Apple In-App Purchase, so the product is funded by subscriptions, not by selling what you write.
A native app, not a web form
Web humanizers route your text through a browser tab and someone's ad-tracked page. Humanizer is a native Mac and iOS app — fewer hops, no third-party analytics, no ads.
Account deletion erases your data
Delete your account and everything tied to it is erased within 30 days. No lingering copies, no "archive."
Sign in with Apple
Authentication is handled by Apple. You can use Hide My Email, and there is no separate password for us to store or leak.
You see what the detector sees
Every rewrite shows a Sapling-based AI-detector score in the app — transparency on the output, not a black box.
Humanize your text.
Right here, right now.
Paste up to 1,500 characters, pick a mode, and get a real rewrite with an AI-detector score. No account, no card.
Your rewrite will appear here.
Free tool runs Claude Haiku, one pass. Pro (app & web) uses the stronger model with a detector-guided retry loop, longer text, and unlimited rewrites.
Humanize free — then get the app
Try the rewriter right here, no signup. Get the native Mac & iPhone app for unlimited rewrites, longer text, and the stronger model.