DownSub - Dual Subtitles & Transcripts for YouTube, Netflix

Download and display video subtitles from YouTube, Netflix, and more sites. Translate in real-time. Pro: AI summaries.

Download subtitles from YouTube, Netflix, and the other sites you watch in one click - SRT, VTT, or TXT - translate them to 100+ languages, and show the translation right on the video. DownSub adds a clean "Download" button right where you need it - next to the share/save bar or inside the player controls, styled to match each site. No URL copy-paste, no third-party sites. ━━━━━━━━━━━━━━━━━━━━━━━━━ WORKS EVERYWHERE YOU WATCH ━━━━━━━━━━━━━━━━━━━━━━━━━ The Download button appears automatically on every supported video page - including the major international streaming platforms for K-dramas, C-dramas, and anime. The full, up-to-date list of supported sites is at https://downsub.com. Two site-specific tips: • On some sites, start playback once so the player loads the subtitle tracks • A few sites only serve subtitles to signed-in viewers - sign in and reload the page if the widget asks ━━━━━━━━━━━━━━━━━━━━━━━━━ FREE FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━ • Download subtitles in SRT, VTT, plain text, or text-with-timestamps • Auto-translate captions to 100+ languages via the site's own translation engine where available - never costs credits • Full transcript panel with click-to-seek timestamps and live search • Dual subtitles: show two languages stacked on the player at once - perfect for language learners (works on every supported site) • Copy transcript to clipboard for notes, blogs, or LLM prompts • Smart filename: video title + language + format • Strip non-speech tags ([Music], [Applause], (laughs)…) for clean reading • Dark / light theme that follows the site's appearance • UI available in 51 languages ━━━━━━━━━━━━━━━━━━━━━━━━━ PRO FEATURES (with DownSub account) ━━━━━━━━━━━━━━━━━━━━━━━━━ • Auto-save subtitles - pick your preferred subtitle language once in Settings, and the subtitle file of each video you open is saved to Downloads while you watch. • AI Summary - bullet points with timestamps in your preferred language. Pick a style: timeline, key points, action items, technical, educational, movie/novel (with optional spoiler-free mode). Works on every supported site. • Translate subtitles on sites without native auto-translate - pick any target language, then choose your engine: on-device translation (free, no credits, powered by Chrome's built-in translator) or DownSub AI for higher quality. • Show subtitles on the video - overlay the chosen track (original or translated) directly on the player; translate once and keep watching (the result is reused, so re-showing never re-charges) • Comments analysis (YouTube) - sentiment breakdown, top topics with quotes, and highlighted top comments • AI subtitles for videos with no captions (YouTube) - DownSub AI creates a subtitle for the video, optionally translated to your language ━━━━━━━━━━━━━━━━━━━━━━━━━ WHO IT'S FOR ━━━━━━━━━━━━━━━━━━━━━━━━━ • Language learners watching K-dramas, C-dramas, anime, and Asian shows - translate the subtitle and show it (or both languages) right on the player • Students & researchers turning lectures into searchable notes • Content creators repurposing videos into blogs / scripts • Anyone who hates wading through 30-minute videos for 2 minutes of insight ━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY ━━━━━━━━━━━━━━━━━━━━━━━━━ DownSub only requests access to the supported video sites plus downsub.com - no <all_urls>, no tracking, no ads. Subtitles download straight from the video site to your machine, and on-device translation runs entirely in your browser (no credits, no upload). AI summary, AI translation and playlist subtitle downloads run through DownSub's own servers (a playlist run sends them only the subtitle links / video ids of the playlist, never account data); nothing is shared with third parties. DownSub never downloads, records or converts video or audio. It only saves the subtitle and caption text the site already shows in its own player. DownSub is a first-party extension from the team behind downsub.com. ━━━━━━━━━━━━━━━━━━━━━━━━━ SUPPORT ━━━━━━━━━━━━━━━━━━━━━━━━━ Got a question, bug report, or feature request? Open the "Support" tab at the top of this page and post it there - we read every message and reply within 24 hours. For anything else, visit https://downsub.com.