12.9K ·GitHub
What is this?
KISS Translator is an open-source side-by-side (bilingual) web translator, shipped both as a full browser extension and as a Greasemonkey/Tampermonkey userscript, that translates web pages, input boxes, selected text, and YouTube subtitles.
KISS Translator is an open-source side-by-side (bilingual) web translator, shipped both as a full browser extension and as a Greasemonkey/Tampermonkey userscript, that translates web pages, input boxes, selected text, and YouTube subtitles.Is this a browser extension, a userscript, or both?Both: it ships as a full browser extension for Chrome/Edge, Firefox, Kiwi (Android), Orion (iOS), and Thunderbird, and also as a Tampermonkey/Violentmonkey userscript. The README recommends the extension since it has fuller features like local language detection and a right-click menu.
Both: it ships as a full browser extension for Chrome/Edge, Firefox, Kiwi (Android), Orion (iOS), and Thunderbird, and also as a Tampermonkey/Violentmonkey userscript. The README recommends the extension since it has fuller features like local language detection and a right-click menu.Do I need an API key for the translation engine?It depends on which service you pick: Google, Microsoft, Tencent, and Chrome's built-in AI translation work out of the box, while AI backends like OpenAI, Gemini, Claude, Ollama, DeepSeek, DeepL, or OpenRouter require you to supply your own API key or endpoint.
It depends on which service you pick: Google, Microsoft, Tencent, and Chrome's built-in AI translation work out of the box, while AI backends like OpenAI, Gemini, Claude, Ollama, DeepSeek, DeepL, or OpenRouter require you to supply your own API key or endpoint.Should I use the extension or the userscript, and are there catches?The userscript version is more prone to issues like CORS errors and script conflicts, and you must manually add each translation API's domain to a whitelist for it to work at all; the browser extension avoids most of this friction.
The userscript version is more prone to issues like CORS errors and script conflicts, and you must manually add each translation API's domain to a whitelist for it to work at all; the browser extension avoids most of this friction.Does it translate YouTube subtitles?Yes, it can bilingually translate video subtitles with any supported translation service, using a built-in (and optionally AI-assisted) subtitle merging and sentence-splitting algorithm, with customizable subtitle styling.
Yes, it can bilingually translate video subtitles with any supported translation service, using a built-in (and optionally AI-assisted) subtitle merging and sentence-splitting algorithm, with customizable subtitle styling.Can I write custom translation rules for a specific website?Yes, a visual editor lets you pick page elements with CSS selectors (target, excluded areas, root container, etc.), or you can add selectors manually; rules can be shared and subscribed to as community rule lists, with personal rules always overriding subscribed or global ones.
Yes, a visual editor lets you pick page elements with CSS selectors (target, excluded areas, root container, etc.), or you can add selectors manually; rules can be shared and subscribed to as community rule lists, with personal rules always overriding subscribed or global ones.Can I compare results from multiple translation services on the same page?Yes, you can open a translation popup on any page and send the same text to several configured translation services to compare the results side by side.
Yes, you can open a translation popup on any page and send the same text to several configured translation services to compare the results side by side.What do the default keyboard shortcuts do?Alt+Q toggles page translation, Alt+C switches the display style, Alt+K opens the settings popup, Alt+S opens the translate popup or translates selected text, Alt+O opens the settings page, and Alt+I translates the active input box.
Alt+Q toggles page translation, Alt+C switches the display style, Alt+K opens the settings popup, Alt+S opens the translate popup or translates selected text, Alt+O opens the settings page, and Alt+I translates the active input box.What are similar projects?github-chinese, video_vip, FluentRead, read-frog, chatGPTBox, return-youtube-dislike, integrity_baozi-, qiaomu-clipper
github-chinese, video_vip, FluentRead, read-frog, chatGPTBox, return-youtube-dislike, integrity_baozi-, qiaomu-clipperWhich topics is it in?greasyfork, tampermonkey, translator, translate, userscript, bilingual, extension, subtitles, firefox-extension, youtube, cloudflare, chrome-extension
greasyfork, tampermonkey, translator, translate, userscript, bilingual, extension, subtitles, firefox-extension, youtube, cloudflare, chrome-extension