
Shinkansen Web Translator
Fast web & subtitle translator
About
This Safari extension offers instant web page and YouTube subtitle translation, preserving original formatting. It supports multiple translation engines and allows for custom glossaries and offline Chinese conversion.
What's New in Shinkansen Web Translator
2.6.0
October 7, 2026
Highlights: • New: hover translation (iPad with a trackpad or mouse) — hold a modifier key and rest the cursor on a paragraph to translate just that one, in place; choose the modifier and bilingual / monolingual display in Settings (off by default) • Touch gesture can be a three- or four-finger tap, four by default • Glossary scoped to a site path — enter "domain/path" to apply a domain glossary only under that path, so sections or series on one site can each have their own; marked "(path scope)" in the list • Automatic Chinese-variant conversion — no longer lights the toolbar icon; the first press after conversion translates the rest of the page; icon-only buttons and short headings keep their layout • YouTube subtitles — the settings menu is no longer closed while open • Settings "Test" button — a wrong Base URL or a network intercept returning 200 + HTML is no longer reported as success; messages follow the interface language • Performance and stability — no more stalls when hovering long pages or opening the menu; hover and full-page translation no longer overwrite each other
MoreFAQ
How fast is Shinkansen Web Translator?
Web pages begin translating within one second of pressing translate using the Gemini engine. This provides a very quick and smooth translation experience for users.
Does Shinkansen Web Translator preserve website formatting?
Yes, text is replaced in place, preserving fonts, sizes, colors, and layout. Links, bold, and italics also survive the translation process.
What translation engines does Shinkansen Web Translator support?
It supports Google Gemini (requires API key), Google Translate (free, no API key), and any OpenAI-compatible model, whether cloud-hosted or self-hosted.
Can Shinkansen Web Translator translate YouTube subtitles?
Yes, it offers automatic detection and real-time replacement of YouTube subtitles, with styling matching native captions. Bilingual subtitles are also available.
Does Shinkansen Web Translator have ads?
No, Shinkansen Web Translator is ad-free. The app does not contain advertisements, providing an uninterrupted user experience.
Is Shinkansen Web Translator available on Android devices?
No, Shinkansen Web Translator is built specifically for iPhone and iPad devices. It is not currently available for Android.
How does Shinkansen Web Translator handle privacy?
It is a privacy-first extension. Your reading never touches a third-party server, and all settings live on your own device, with users bringing their own API keys.
What is the update frequency for Shinkansen Web Translator?
The latest version, 2.5.1, was released on September 25, 2026, indicating regular updates. The app was last updated on this date.



