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Translumo

github.com/ramjke/Translumo Translation Open-source projectOpen source

Translumo translates text on screen, including game text, hardcoded video subtitles, and static text, according to its project description.

Visit Translumo 10 alternatives
github.com/ramjke/Translumo
Translumo homepage screenshot

About Translumo

Translumo is an open-source, Windows-only screen translator that reads text on screen in real time and displays a translation. It is built for PC games but works with any application, including hardcoded video subtitles and static text. Users pick a capture area and languages, recognition runs through one or more OCR engines, and a machine learning model scores the results to choose the best one.

Windows OCR is recommended and needs Windows 10 version 2004 or later, a DirectX 11 compatible GPU and 2 GB RAM. EasyOCR handles unusual fonts and busy backgrounds better but requires an NVIDIA GPU with CUDA 11.8 support, 8 GB RAM and at least 5 GB free storage. Google Translate works without setup; DeepL and Yandex Translate go through their official APIs and need API keys (DeepL's free plan covers 500,000 characters per month). Games must run in borderless or windowed mode, not fullscreen, for the translation overlay to display correctly.

Key features

  • Combines multiple OCR engines and scores results with a machine learning model
  • Real-time translation of game text and any on-screen application
  • Integrated OCR engines: Windows OCR (recommended) and EasyOCR
  • Google Translate works out of the box; DeepL and Yandex need API keys
  • Recognizes English, Russian, Japanese, Chinese (Simplified) and Korean
  • Hotkeys for settings, capture area selection and starting translation
Best for: Windows users who want real-time on-screen translation of PC games, hardcoded subtitles or static text.
Good for
  • Open source, with Google Translate usable without any setup
  • Low-latency optimizations reduce system impact and delay between text and translation
  • Combining OCR engines aims at higher text recognition precision
Watch out for
  • Runs on Windows only
  • EasyOCR requires an NVIDIA GPU with CUDA 11.8 support, 8 GB RAM and 5 GB free storage
  • Games must run in borderless or windowed mode, not fullscreen
  • DeepL and Yandex require API keys, and DeepL's free plan is limited to 500,000 characters per month

Translumo at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Platforms
Windows
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026
open sourcegamemachine learninglanguage learning

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Translumo FAQ

What should I do if I get "Failed to capture screen" or nothing happens after translation starts?
Make sure the target window is active. Restart Translumo or reopen the target window if needed.
Do I need an API key to use Translumo?
Google Translate works with no setup. DeepL requires a DeepL API key, and Yandex Translate requires a Yandex Cloud API key for a service account with the ai.translate.user role.
Why is the translation overlay not showing over my game?
Games must be run in borderless or windowed mode, not fullscreen, for the overlay to display correctly.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 11, 2026 · How we rank