koharu
by koharu-rs
Koharu is a desktop app that translates manga pages. It finds the text, reads it, removes it from the artwork, translates it and puts the new text back, with all the models running on your own machine.
- Stars
- 6.5k
- Licence
- Apache-2.0
- Runs on
- Your computer, with a GPU
- Setup
- Moderate
- Language
- Rust
- Age
- 567 days
What you can do with it
- Translate manga pages from images, archives or PDFs, with text detection, OCR and cleanup handled automatically
- Proofread and adjust translations, then place and fit the new text on the page in the built-in editor
- Export finished pages as flattened images or layered PSD files for further editing
Make money with it
A freelancer could offer paid manga or webcomic translation and typesetting, using Koharu to speed up cleanup and lettering.
An idea, not financial advice. Check the licence before charging for anything built on it.
Ways a business could use it
- A small comic publisher or localisation freelancer could produce first-draft translations and cleaned pages faster, cutting the manual typesetting time.
- A freelance translator could offer manga or webcomic translation and typesetting, using local models so client material stays private.
Can you use it commercially?
Free to use, change and sell, including in paid products. Keep the copyright notice.
Not legal advice. Read the project's licence file before building a product on it.
Getting it running
Download the installer from the GitHub releases page, keep your graphics driver current, and let the app download the models it needs.
Follow the official instructions in the project README.
Things to check
- A GPU is strongly recommended; CPU use is much slower
- Large model downloads are needed, and some larger models need plenty of graphics memory
- Translating copyrighted manga without permission may break copyright law
- Some optional models listed are uncensored, so check suitability for your use
- Hosted translation providers may need paid API keys
Who's talking about it
- José da Cruz: GitHub Weekly: This Week in Rust (October 12 – October 18, 2026) Featured in a roundup
Checked 28 Oct 2026. Summary drafted by AI from the project's README.