Cotrans Alternative.
Whole chapters in one upload.
Cotrans alternative for readers who translate more than one image at a time. Cotrans is a free, open-source web translator, and it still works; Manga Translator takes a whole chapter in one upload, writes about 50 languages and hands the pages back as a ZIP. The comparison below was checked in November 2026.
Drop pages here or click to choose
JPG, PNG or WEBP · up to 10 MB per page
No sign-up · 20 free pages every week · Pages aren't stored
Before and after
A Japanese manga page, translated in one pass
A quiet scene from a story set in the Shōwa era: neighbors thank Isao for his help, and he shrugs it off. All eight lines, including his Kansai-dialect reply, are translated with the whole page as context and lettered into the original bubbles.
- Vertical Japanese, read in panel order
- Dialect turned into natural English
- Names kept consistent across the page
Cotrans and Manga Translator, side by side
Cotrans is a free web app by VoileLabs, built on the open-source manga-image-translator. We uploaded a test image on November 11, 2026, and it came back translated within seconds.
| Manga Translator (this site) | Cotrans | |
|---|---|---|
| Price | 20 free pages a week without an account, then one-time credit packs from $5 for 1,000 pages. | Free, with no account. The site asks for donations on Ko-fi, Patreon and Afdian to cover its running costs. |
| Uploads | Many pages at once, translated in the order you add them. Save them one by one or as a ZIP. | One image per upload on the website: PNG, JPEG, BMP or WEBP. |
| Output languages | English and about 50 others, including Indonesian, Thai and Arabic. | 18, including English, Spanish, Vietnamese and Korean. |
| Translation engine | Chosen for you and tuned for comics. Nothing to pick. | You pick one: GPT-3.5, Youdao, Baidu, Google, DeepL, Papago or Sugoi/M2M100. Detection resolution and text direction can be set too. |
| Other ways to use it | The website, on a phone or a computer. | The website, plus a userscript that translates images on pixiv, X and Misskey; it was last updated in November 2026. |
| Source code | Closed source. | Open source under GPL-3.0 (VoileLabs/cotrans). The engine it's built on can be run on your own computer. |
| Updates | Launched in 2026 and updated as it goes. | The site footer reads © 2021–2023, and the web app's repository was last changed in February 2024. |
Cotrans details were checked on November 11, 2026, by using the site and reading its public pages; they may change. Manga Translator isn't affiliated with Cotrans, VoileLabs or the manga-image-translator project.
When to use which
For single images
Free one-off translations, a choice of engines, and a userscript for pixiv and X. If that covers what you read, it's a good fit.
For whole chapters
Upload a full chapter, get it back in order as a ZIP, and read in languages Cotrans doesn't list, such as Indonesian, Thai or Arabic.
Your own machine
Want the engine behind Cotrans without a website? manga-image-translator runs locally with Python, ideally with a GPU.
How to translate a whole chapter at once
Select every page
Drop all the pages of the chapter above. They're queued in the order you add them.
Pick the language
English is selected. About 50 others are available.
Download the ZIP
Read the chapter here, then save it as one ZIP or page by page.
Free pages every week
20 pages a week are free, no account needed. After that, credit packs are paid once and never expire, and pages that fail aren't charged.
See pricingQuestions before you switch
Is Cotrans still working?
Yes. On November 11, 2026, cotrans.touhou.ai accepted an upload and returned a translated image. It's run by VoileLabs, and we don't know its plans.
Is Manga Translator related to Cotrans?
No. It's a separate service and isn't affiliated with Cotrans, VoileLabs or the manga-image-translator project.
Can I upload a whole chapter here?
Yes. Select every page at once. They're translated in order and download as one ZIP.
Are my images kept or shared?
No. They're used only to make the translation, never published or used to train models.