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PotDeepL
Free

Free and open source under the GPL. Third-party translation APIs may charge separately.

 Freemium

Free translator and free API key, with paid plans for more usage and features.

Windows, macOS, Linux Windows, macOS, Android, iOS, Web, Browser extension
  • Select-to-translate and screenshot OCR from a single hotkey
  • Pluggable engines, including self-hosted and OpenAI-compatible ones
  • Translates whole documents as well as text
  • Writing assistant and live voice translation alongside the translator
  • Most engines require your own API keys
  • Much of the documentation is in Chinese
  • Text is processed on DeepL's servers
  • Many features and higher limits need a paid plan
Downloadable app Downloadable app, Web application, Browser extension
Open source Closed source
License: GPL-3.0 License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.