AI writing assistant for people working in a second language

Sound natural in your second language.

Select your text, press a shortcut, and Tiny Writer rewrites it to sound natural and professional, right where you're typing. Works in any app, in any language, on Mac and Windows.

Ctrl + Shift + U on Windows

Before

Hello Mr. Martin, I confirm you that the delivery will be done until Friday. Don't hesitate if you have any question.

After

Hi Mr. Martin, I can confirm the delivery will arrive by Friday. Let me know if you have any questions.

Why Tiny Writer

Sound natural and professional
Fixes your phrasing, not just your grammar, so your emails read like a native speaker wrote them. Not sure what a client meant? Select their email and choose Explain.
Stay in your flow
Works in Gmail, Outlook, Slack, Word and anywhere else you write. No copy-pasting into ChatGPT, no switching apps. It only shows up when you call it.
Private by design
Your text is never stored and never used to train AI.

How it works

  1. Select the text you want to improve.
  2. Press Cmd + Shift + U on Mac or Ctrl + Shift + U on Windows.
  3. Choose Rephrase or Explain, then accept the result.

Pricing

Start free, no card. Upgrade to Pro from inside the app when you need more.

Free

$0

  • 10 requests a day, shared by Rephrase and Explain
  • Up to about 500 words at a time
  • No tones

Pro

$5.99 a month

  • 300 requests a day, shared by Rephrase and Explain
  • Up to about 1,300 words at a time
  • 4 tones for Rephrase: Shorter, More polite, Firmer, Friendlier

Questions

Does it only work for emails?

No. It works anywhere you can select text: email, Slack, Word, browsers. If you can't type in a field, Accept still puts the rewrite on your clipboard, ready to paste wherever you need it.

Which languages does it support?

It rephrases in the same language as the text you select. The app itself is available in English, French, Brazilian Portuguese and Spanish.

Does it fix grammar too?

Yes, along with phrasing and tone.

Can I skip the menu?

Yes. You can set a second shortcut that runs Rephrase or Explain directly.

What does it cost?

Free gives you 10 requests a day, shared by Rephrase and Explain, on up to about 500 words at a time, with no tones. Pro is $5.99 a month for 300 requests a day, up to about 1,300 words at a time, and 4 tones for Rephrase: Shorter, More polite, Firmer, and Friendlier. No card to start; you upgrade from inside the app.

Does it work on my computer?

It runs on Mac and Windows. On Windows, you get it from the Microsoft Store.

Where does my text go?

The selected text is sent over HTTPS to the Tiny Writer AI backend, which forwards it to the language model and streams the result back. It isn't stored after the request finishes, and nothing else on your screen is read. The AI providers it's routed to have committed not to keep it or use it for training.

Do I need an account?

Yes, a free one, so your daily requests can be counted. You sign in inside the app with your email address and a one-time code we send you: no password to make up, and no API key to create or pay for.

Can I cancel anytime?

Yes. Click the Tiny Writer AI icon in the menu bar, open Account, and choose Manage subscription. Pro stays on until the end of the month you've already paid for.

Try it on your next work email.