Freedom251 › Translation Software
Bergamot Translator
What Bergamot Translator is
Bergamot Translator provides machine translation that runs locally in a web browser, using machine learning designed for consumer hardware. The project says translated text is not sent to a third party. Its suggested way to use the software is TranslateLocally for Firefox, which can translate an entire website, selected text, or text entered in forms. The extension can handle dynamic pages such as YouTube and Twitter, and its listing says it works with a poor or absent internet connection. Listed languages include Bulgarian, Czech, English, Estonian, French, Polish, and Spanish, with limited translation from Icelandic and Norwegian into English. TranslateLocally works independently; when paired with its desktop application, it can share language models for faster translation and custom models. The project also publishes developer resources, including open-source libraries, training utilities, a Marian machine-translation server with a REST API, and tools for translation quality estimation and outbound translation. The Firefox extension is free and listed under the Mozilla Public License 2.0. Its permissions include access to tabs and website data, plus communication with programs outside Firefox.
Who it suits
It suits Firefox users who want local webpage, selected-text, or form translation, including when internet access is weak or absent. Developers and researchers can also use its libraries, training utilities, and REST API server.
What it does well
- Translation runs locally in the browser.
- Can translate full websites, selected text, and form entries.
- Listing says it works with poor or absent internet.
- Free Firefox extension under Mozilla Public License 2.0.
What to know first
- Extension requires access to browser tabs and website data.
- Extension can communicate with programs outside Firefox.
- Limited Icelandic and Norwegian support is into English.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Bergamot client-side translation software | Free client-side translation software; Firefox web extension | Free |
As browser.mt lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
Bergamot offers local browser translation and developer resources, with TranslateLocally as its Firefox route. Review the extension permissions and listed language coverage to see whether they fit your use.
Facts from Bergamot Translator's own pages
- API access
- Yes · github.com, 22 Sept 2026
- Browser extension
- The project identifies TranslateLocally for Firefox as the easiest way to use Bergamot translation software. · browser.mt, 12 Oct 2026
- Consortium
- The project consortium is coordinated by the University of Edinburgh and includes Charles University, the University of Sheffield, the University of Tartu, and Mozilla. · browser.mt, 12 Oct 2026
- Desktop integration
- The extension works without the TranslateLocally desktop application and can share language models with it for faster translation when installed. · addons.mozilla.org, 12 Oct 2026
- Developer resources
- The project publishes open-source software libraries and training utilities for developers and researchers. · browser.mt, 12 Oct 2026
- Developer software
- The project lists a Marian machine translation server with a REST API, training utilities, and open-source libraries. · browser.mt, 12 Oct 2026
- Extension features
- TranslateLocally for Firefox can translate all text on a website, selected text, and text entered in forms. · addons.mozilla.org, 12 Oct 2026
- Extension permissions
- The Firefox listing says the extension requires access to browser tabs, data for all websites, and message exchange with programs outside Firefox. · addons.mozilla.org, 12 Oct 2026
- Extension status
- The listing gives version 0.8.2 and says it was last updated November 24, 2022. · addons.mozilla.org, 12 Oct 2026
- Free plan
- Yes · github.com, 22 Sept 2026
- Funding
- The project says it received funding from the European Union Horizon 2020 programme under grant agreement No. 825303. · browser.mt, 12 Oct 2026
- Integration
- The Firefox extension works on its own and can integrate with the TranslateLocally desktop application for custom models and better performance. · addons.mozilla.org, 12 Oct 2026
- Languages
- The site lists Bulgarian, Czech, English, Estonian, French, Polish, and Spanish, plus limited Icelandic and Norwegian to English support. · browser.mt, 12 Oct 2026
- License
- The Firefox extension is listed under the Mozilla Public License 2.0. · addons.mozilla.org, 12 Oct 2026
- Local processing
- Translation runs locally using machine learning optimized for consumer hardware. · browser.mt, 12 Oct 2026
- Local translation
- Translation runs locally using machine learning optimized for consumer hardware. · browser.mt, 12 Oct 2026
- Offline use
- The extension listing says translation works with a bad or absent internet connection. · addons.mozilla.org, 12 Oct 2026
- Page translation
- The Firefox extension can translate all text on a website, including dynamic sites such as YouTube and Twitter. · addons.mozilla.org, 12 Oct 2026
- Privacy
- The project says translated text is never sent to a third party. · browser.mt, 12 Oct 2026
- Purpose
- Bergamot develops client-side machine translation software for web browsers. · browser.mt, 12 Oct 2026
- Selected text and forms
- The extension supports translating selected text and helping translate text in form fields. · addons.mozilla.org, 12 Oct 2026
- Software tools
- The software page lists a recipe for training translation systems, a Marian machine-translation server with a REST API, and Ptakopět for quality estimation and outbound translation. · browser.mt, 12 Oct 2026
- Support
- The project recommends providing feedback through the extension or filing issues against its repository on GitHub. · browser.mt, 12 Oct 2026
- Website translation
- Yes · github.com, 22 Sept 2026
Where Bergamot Translator stands on Freedom251
- Translation Software#19 of 156
- Translation apps#78 of 158