OpenImmersive Translator

OpenImmersive Translator is an open, transparent translation tool for people who want to understand how their translator works. The browser extension is open source under AGPL-3.0, so you can read the code, contribute, or build it yourself.

In the browser, the extension shows the original and the translation side by side on any page, with hover, selection and input-box translation. On the web, it translates text, images, speech and websites in 199 languages, and it also translates PDF, Word, PowerPoint, Excel, TXT, Markdown and SRT files.

You choose a quality tier per translation: Fast is instant and free with no account, while Standard and Premium use context-aware AI for natural and professional results. You can also bring your own DeepL, DeepSeek or OpenAI key.