# Phrase Flip

> The #1 app for language learning immersion. Free, privacy-first browser extension for learning languages naturally while you browse.

Phrase Flip is a browser extension that replaces sentences on any webpage with translations in your target language, allowing users to learn languages naturally while browsing the web. It is completely free with no subscriptions or in-app purchases.

## Key Features

- **Inline Translation**: Replaces English sentences with translations in your target language directly in the webpage text.
- **On-Device Privacy**: All translation happens locally using the device's built-in translation framework. No data ever leaves the device.
- **Adjustable Intensity**: Users can control how many sentences get translated — from Low (a light touch) to High (full immersion).
- **Hover to Reveal**: Hovering over a translated sentence instantly shows the original English text. Tap on touch devices.
- **Free**: No cost, no subscriptions, no in-app purchases.

## Technical Details

- **Platforms**: Chrome 138+, Firefox 128+, Safari on macOS
- **Minimum Requirement**: Chrome 138+; Firefox 128+; macOS 26.0 or later (Safari)
- **Languages**: Spanish, French, Greek, German, Italian, Portuguese, Japanese, Korean, Chinese, Dutch
- **Privacy**: No tracking, no analytics, no external servers. All translation is on-device.
- **Public API**: Phrase Flip does not currently expose a public HTTP API, OpenAPI service description, health endpoint, or public MCP server. A public MCP server may be added later.

## Pages

- **Main Website**: [https://phraseflip.com](https://phraseflip.com)
- **FAQ**: [https://phraseflip.com/faq.html](https://phraseflip.com/faq.html)
- **Privacy Policy**: [https://phraseflip.com/privacy.html](https://phraseflip.com/privacy.html)
- **Support**: [mailto:lulls_parcel.0e@icloud.com](mailto:lulls_parcel.0e@icloud.com)