
Translation & language
MORT
Read text off the screen and overlay a translation in place
★ 1.7k
August 2026
MIT
Translation & language
What it does
Captures a region of the screen, runs OCR on it and displays a translation over the top, which makes software and games with no localisation readable. Set a region once and it re-reads and re-translates whenever the content changes, with a choice of translation back-ends. Windows only. Decorative or low-contrast text confuses the OCR, cloud translation sends the captured text to that provider, and some games prohibit third-party overlays in their terms.
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 difficultySome setup needed
- Command lineNot required
- API keyNot required
- Sends data onlineYes
Judged automatically from the project's own metadata. Always confirm on the official page.
MORT FAQ
- Is MORT 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 MORT?
- You install it like a normal desktop app. No command line involved.
- Does MORT work on a phone?
- No. It needs a computer.
- Can I use MORT commercially?
- The licence is MIT, 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 |
|---|---|---|---|---|---|
| MORT (this page) | Not needed | Not needed | Yes | No | Yes |
| Translumo | Not needed | Not needed | Yes | No | Yes |
| normcap | Not needed | Not needed | No | No | Not verified |
| YomiNinja | Not needed | Not needed | No | No | Yes |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.