Translation & language
Translumo
Reads text off your screen and overlays a live translation
★ 5.6k
June 2026
Apache-2.0
Translation & language
What it does
Mark an area of the screen and Translumo reads whatever text appears there, translates it and draws the result on top - useful for games without localisation and for apps where text cannot be selected. It runs several OCR engines at once and uses a machine-learning model to pick the most likely reading. Windows only: unzip the release and run Translumo.exe, no command line involved. Apache-2.0 licensed.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals

Before you start
- Setup difficultyEasy to start
- Command lineNot required
- API keyNot required
- Sends data onlineYes
Judged automatically from the project's own metadata. Always confirm on the official page.
Translumo FAQ
- Is Translumo free?
- Yes. It runs on your own machine, so there is no usage-based cost either.
- Do I need to install anything or write code to use Translumo?
- You install it like a normal desktop app. No command line involved.
- Does Translumo work on a phone?
- No. It needs a computer.
- Can I use Translumo commercially?
- The licence is Apache-2.0, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| Translumo (this page) | Not needed | Not needed | Yes | No | Yes |
| interpreter | Not needed | Not needed | No | No | Yes |
| normcap | Not needed | Not needed | No | No | Not verified |
| MORT | Not needed | Not needed | Yes | No | Yes |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.