Repolode
Submit
thanhkeke97

thanhkeke97/RSTGameTranslation

Windows tool that translates on-screen game text, manga and game voices in real time, drawing translations over the original text.

Open-source alternative to:Google Translate

View on GitHubWebsite
Stars
735
Forks
118
Open issues
5
Last commit
5 days ago

What is it?

RSTGameTranslation is a Windows desktop app that reads text from a game window or a selected screen area using built-in OCR (OneOCR or Windows OCR), translates it, and shows the result as an overlay on top of the original text. The original text can be erased and the translation drawn in a matching background color, so it blends into the game.

Translation can run through Google Translate (no API key), cloud AI services such as Gemini, Groq, ChatGPT and Mistral, or local models via Ollama and LM Studio for offline use. A Manga Mode detects speech bubbles and handles Japanese vertical text, while a voice mode transcribes game audio with Whisper or FunASR and translates the dialogue. Translations can also be read aloud with several text-to-speech services, and any copied text can be translated automatically.

The app is configured through its settings window and hotkeys, with per-game profiles and context fields that help AI translators handle character names and terminology.

Key features

  • 01Reads on-screen text via built-in OneOCR or Windows OCR and overlays the translation
  • 02Supports Google Translate, Gemini, Groq, ChatGPT, Mistral, Ollama and LM Studio
  • 03Manga Mode detects speech bubbles and reads Japanese vertical text right to left
  • 04Transcribes game voices with Whisper or FunASR and translates the dialogue
  • 05Text-to-speech output via Supertonic, Windows TTS, ElevenLabs or Google Cloud TTS
  • 06Per-game profiles and clipboard translation

Use cases

  • Playing Japanese or Korean games on Windows without an official English localization
  • Reading manga or comics page by page with translated speech bubbles
  • Running fully offline translation with local models for private use
  • Following voiced dialogue in games through translated subtitles

Quick start

  1. 1

    Download the latest release, extract it, and run rst.exe

    rst.exe
  2. 2

    In Settings → Language, pick the game's language and your language

  3. 3

    In Settings → Translation, select Google Translate (free, no API key)

  4. 4

    Click Select Application or press Alt+Q to choose the text area, then press Alt+F and Alt+G to start

Things to know

  • Windows 10 or 11 only.
  • Exclusive fullscreen hides the translation overlay; games must run in windowed or borderless mode.
  • The README states a BSD-style license while the project metadata lists GPL-3.0, so check LICENSE.md before reuse.

Topics

#game-translation#ocr#translation#windows#manga#speech-to-text#text-to-speech#overlay#autotranslate#game

FAQ

What is RSTGameTranslation?
Windows tool that translates on-screen game text, manga and game voices in real time, drawing translations over the original text. RSTGameTranslation is a Windows desktop app that reads text from a game window or a selected screen area using built-in OCR (OneOCR or Windows OCR), translates it, and shows the result as an overlay on top of the original text. The original text can be erased and the translation drawn in a matching background color, so it blends into the game.
Is RSTGameTranslation free to use? What license does it have?
RSTGameTranslation is open source under the GPL-3.0 license. Check the license terms before using it in commercial products.
Is RSTGameTranslation still maintained?
Actively maintained. The last commit to RSTGameTranslation was on Oct 15, 2026.
What can I use RSTGameTranslation for?
Playing Japanese or Korean games on Windows without an official English localization Reading manga or comics page by page with translated speech bubbles Running fully offline translation with local models for private use Following voiced dialogue in games through translated subtitles
How do I install RSTGameTranslation?
Download the latest release, extract it, and run rst.exe: rst.exe In Settings → Language, pick the game's language and your language In Settings → Translation, select Google Translate (free, no API key) Click Select Application or press Alt+Q to choose the text area, then press Alt+F and Alt+G to start
Where can I get RSTGameTranslation?
The source code and installation instructions are on GitHub: https://github.com/thanhkeke97/RSTGameTranslation

Summary generated by AI from the project's README. GitHub stats refresh daily.

Related projects