voice-over-translation is a browser extension that adds dubbed audio translation and subtitles to videos watched online.
The tool solves the problem of watching foreign-language video content by overlaying translated audio and captions directly in the browser. It works by integrating with video platforms to intercept the original audio, translate it, and present both the dubbed version and subtitle options to the viewer. The extension operates across multiple browsers and can be installed either as a native extension or through userscript managers.
The tool suits viewers who want to consume video content in languages they do not speak without relying on platform-native subtitle options. It works on a documented set of supported websites. Installation varies by browser: Chrome and Chromium-based browsers can install the native extension from the Chrome Web Store or manually from releases, while other browsers can use userscript managers like Tampermonkey or Violentmonkey. Users of Tampermonkey 5.2 and later on Chromium browsers need to enable developer mode and, on Chromium 138 and later, grant permission for custom scripts. Opera users must use Violentmonkey instead and enable search results access in the extension settings.
Development activity shows consistent engagement with user issues and documentation. The project maintains a FAQ section and tracks supported sites, indicating ongoing maintenance of compatibility. Contributors are acknowledged for their involvement in improving the extension. The codebase is written in TypeScript and built for distribution across multiple installation methods, suggesting active development of both the core functionality and platform-specific builds.