Ugtbrowser

Universal Game Translator (Browser extension edition)

Why did I make this? Because the default translate option in Chrome makes MANY MISTAKES with Japanese to English.

Using the best AI models lets you choose quality over speed - when researching old game blogs and such, it's totally worth it.

I use a text-fragment approach that lets the LLM understand the full context (all fragments are sent at once and in order), but still allows us to do a streaming translation with in-place text replacement that doesn't mess up links and images.

WARNING: This extension is free and open source, but the LLMs actually cost money and generally make you put in a credit card to get an API key and charge per use. So just be aware that it can add up. Try Gemini, for example; the first million tokens per month are free.

Features:

- Translate selected text using the latest LLM models (OpenAI, Anthropic, Google)
- Text-to-Speech - Have text read aloud via ElevenLabs or Google Cloud TTS
- Create Lesson - Generate detailed language breakdowns with readings, meanings, and grammar notes
- Follow-up Chat - Ask questions about the translated content
- Support for a secondary "Creative task", by default is explains cultural notes
- Securely stores your API keys and settings locally in your browser
- Nothing is sent out except the text to the LLM providers you're using
- Customizable prompt template for advanced users
- Context menu integration for easy access
- During translation, a little animation is shown with an option to see the text coming in
- There is a way to see the last prompt/response pair in the settings, good for debugging

New in V2.1.0:

- Added "Ask about selection" - ask questions about any highlighted text
- Added "Translate Only" mode for quick translations without cultural notes
- Works on protected pages (Chrome Web Store, etc.) via helper tab
- Added copy/open-in-new-tab buttons to translation results
- Added close buttons to reduce UI clutter
- Fixed CSS isolation issues and various bugs

New in V2.0.0:

- Added Text-to-Speech support (ElevenLabs and Google Cloud TTS)
- Added Create Lesson feature for detailed language breakdowns
- Added Follow-up Chat to ask questions about translated content
- Lots of misc tweaks and fixes

SAFETY: I am Seth A. Robinson, a game developer with over thirty released games and creator of many freeware apps including Universal Game Translator and Universal Game Translator: Live.

This app does zero tracking or phoning home, it only communicates with the LLMs you setup. (required for translation)

The full source code (MIT license) is on github, linked below.