Double Subtitles

Fetches subtitles from OpenSubtitles v3, translates them with Google Translate or DeepL and merges them together . No OpenSubtitles or Google Translate credentials are required. Google Translate is free and requires no setup. DeepL uses your own API key and is usually more stable and precise. Install this configured addon, then open a video in Stremio and select subtitles under translated language. For Stremio Web, copy the manifest URL and add it as an addon repository URL.

https://github.com/awerks/stremio-double-subtitles