Browser Translations от Tim Pyrkov

A sidebar for parallel reading: it shows the main text of the current page together with its translation, sentence by sentence, so you can compare the original and translated wording line by line. Supports 9 languages, dark/light theme, and multiple translation engines. Text is sent directly from your browser to the selected engine only when you press Translate. Free MyMemory and Lingva engines work without an API key; optional OpenAI, Gemini, Anthropic, Mistral, Groq, DeepSeek, Kimi, Ollama, or LibreTranslate engines let you use your own API key or local server for higher quality and no daily word cap. The extension acts only as a technical bridge — there is no relay server, and your data is never sent to the extension author. API keys are stored locally and sent only to the selected provider's hardcoded endpoint. Translation is blocked on known document/email services (Gmail, Google Docs, Office Online, Outlook, Notion, etc.) to avoid leaking sensitive information.