Ren'Py Translator translates Ren'Py projects using services including Google, Youdao, DeepL, and offline AI, according to its repository.
KISS Translator
KISS Translator provides an open-source bilingual translation extension and Greasemonkey script.

About KISS Translator
KISS Translator is an open-source bilingual translation extension and Greasemonkey script. It displays translations alongside the original text, both on webpages and in input boxes. It can also translate YouTube subtitles and selected text, and it supports several translation services.
Site-specific translation is handled by an automatic text recognition mode, which the source says can translate most sites without written rules. A manual rule mode is available for tuning specific sites. The README recommends the browser extension over the Greasemonkey script, because the script can run into cross-domain issues and script conflicts. Optional data synchronization can use a self-hosted KISS-Worker service or WebDAV. The source says that a self-deployed service keeps data private, but it does not describe how the other translation services handle text.
Key features
- Bilingual webpage translation with side-by-side display
- Input-box translation through shortcut keys
- YouTube subtitle translation shown bilingually
- Support for Google, Microsoft, DeepL, OpenAI, Claude, Gemini and other services
- Automatic text recognition mode, plus manual rules for specific sites
- Optional cross-client data sync through KISS-Worker or WebDAV
- Open source, with the source code available on GitHub
- Supports multiple translation services, including custom API support
- Automatic recognition mode works on most sites without writing rules
- The Greasemonkey script version has more usage problems, such as cross-domain issues and script conflicts
- The browser extension has more complete functions than the script, such as local language recognition and context menus
- Self-hosted data sync must be deployed and managed by the user
KISS Translator at a glance
- Category
- Online Tools › Translation
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
KISS Translator alternatives
Tools and sites you could use instead, ranked by how closely they match.
Translate Shell offers command-line translation through Google, Bing, and Yandex services.
Poedit edits translation files in formats including PO, XLIFF, and JSON, with builds listed for Mac, Windows, and Unix.
LibreTranslate is a self-hosted, open-source machine translation API that can operate offline.
Translate Web Pages translates webpages in real time using Google, Bing, or Yandex, with Firefox versions listed for desktop and Android.
Microsoft Translator offers text translation, with the supplied Bengali-language page describing support for more than 100 languages.
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KISS Translator FAQ
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