Everything runs in your browser. Your text never touches our servers.
Most AI writing tools ask for your email before they let you fix a single sentence. Then they store your text, train on it, and sell you a subscription to get the features that should have been free. TidyText does none of that. Paste your text, improve it, close the tab. Nothing stays behind.
When you click Improve or Translate, here is exactly what happens:
There is no TidyText server in that chain. No proxy, no middleware, no logging layer. The request goes from your browser to your chosen AI provider using your own API key. TidyText never sees it.
"Your text goes directly from your browser to Google, OpenAI, or Anthropic — the same companies whose tools you already use. We are not in the middle."
Your API key is stored in your browser's localStorage — the same mechanism used to save website preferences. It is Base64-encoded and never transmitted to any server other than your chosen AI provider.
localStorage only — your API key and theme preference. No tracking cookies, no session identifiers, no cross-site data.
Journalists, lawyers, therapists, researchers — anyone whose drafts contain information that must not leave their control. When you paste into a conventional AI writing tool, you are handing that text to a company you may not have read the terms of. With TidyText, the text goes to the AI provider you already chose and trust, and nowhere else.
Many no-login writing tools offer a few free uses and then demand an account. TidyText does not have a free tier that runs out. The tool is the same on your hundredth use as your first, because there is nothing to limit. Bring your own Gemini key — it's free for light use — and improve text in any of 44 languages without creating an account.
TidyText is a single HTML file with no minification, no obfuscation, and no external dependencies. Every prompt is in the PROMPTS object, readable in plain text. You can verify exactly what instruction is sent alongside your text. No black box, no hidden system prompts.
Because there is no account, there is no shared login to manage, no permissions system, no risk of one user seeing another's history. Each session is isolated to the browser tab it runs in.
| Feature | TidyText | Grammarly | QuillBot |
|---|---|---|---|
| Account required | No | Yes | Yes |
| Text stored on servers | Never | Yes | Yes |
| Subscription required | No | For full features | For full features |
| Third-party analytics | None | Yes | Yes |
| Multilingual improvement | 44 languages | English only | Limited |
| Open-source prompts | Yes — view source | No | No |
The BYOK model means you need an API key from Google, OpenAI, Anthropic, or another supported provider. Getting a free Gemini API key takes about two minutes and costs nothing for light use. But it is a step that conventional tools skip by handling the API themselves and charging you a subscription for the privilege.
If you want a tool that requires no setup at all, TidyText is not the right fit. If you want a writing tool where you control the data, the model, and the cost — it is.
The full privacy policy, written in plain English, is at tidytextai.com/privacy.
Paste your text. Pick a mode. See the difference in under ten seconds.
Open TidyText →Free to use · Your API key · Your text never leaves your browser