According to AlphaMoat, as of 2026-09, the Chrome extension Podstr has 265 users (+22.7% MoM), rated 5 (1 reviews) — ranked #2,885 of 9,324 AI browser extensions, and #603 of 1,839 in Office & Collaboration.
What is Podstr
No subtitles in your language? The extension translates them in real time — with context, not line by line. Podstr translates video subtitles to any language using AI models - Claude, Gemini, DeepSeek and others. Works directly in your browser, no server needed, no account required.
HOW IT WORKS
1. Install the extension 2. Open a video with subtitles in your browser 3. A language picker appears above the video - choose your language 4. Subtitles appear over the video while you watch
WHERE IT WORKS
Podstr works with players that expose subtitle tracks in standard formats:
- HLS streams (.vtt segments in .m3u8): ARTE, Filmzie, Plex and more
- TTML via player API: Netflix, BBC iPlayer and more
- Direct .srt files: RaiPlay and more
- Native HTML5 <track> elements: RTS Planeta, Vimeo, YouTube and more
Show the rest of the store description▾
We don't guarantee any specific platform. Streaming sites update their players, formats and APIs often, and something that worked last month may stop working tomorrow. We try to keep up.
If Podstr doesn't work on a player you'd like to use - or stops working somewhere it used to - email us at [email protected].
FEATURES
Translation:
- 30 target languages
- Multiple AI models - free models available, paid models from ~$0.005 per episode
- Translation cost shown after each translation
- Auto-retry for lines the model skipped
Cache:
- Local cache - translated subtitles load instantly on repeat viewing
- Shared cache - if someone already translated an episode, you get it free
- Works offline after first translation
While watching:
- Progress bar while translation runs in background
- Keyboard shortcut (B) - toggle subtitles on/off
- Adjust size, color, background, position
YOUR API KEY, YOUR CONTROL
Podstr uses the OpenRouter API. You bring your own key - it stays on your device, never leaves your browser. Typical cost: $0.005-0.05 per episode depending on the model.
Get a free API key at openrouter.ai/keys
PRIVACY
- API key stored locally - never synced or sent to any server
- No tracking, no analytics, no ads
- Subtitle text sent only to the AI provider you choose
- Open source: github.com/aveleazer/podstr
PERMISSIONS
- "Read and change all your data on all websites" - needed to read subtitle streams from video CDNs and show the overlay
- "activeTab" - needed to detect the current page and activate the picker
13 interface languages: English, Russian, Ukrainian, Belarusian, Serbian, Spanish, French, German, Portuguese, Chinese, Japanese, Korean, Turkish.
Website: podstr.cc Support: [email protected]
Extension profile
User Growth Trend
Popular in Office & Collaboration
Easy-to-use PDF tools to view, edit, convert, fill, e-sign PDF files, and more in your browser.
+ Compare
Handwritten notes, course reading, creased scans, TED/Coursera lectures: layout kept, bilingual subtitles. Web instant, auto match.
+ Compare
Translate while you read and write with DeepL Translate, the world’s most accurate translator.
+ Compare
Free Translate Website, Translate PDF & Epub eBook, Translate Video Subtitles in Bilingual
+ Compare
Get instant access to dozens of PDF tools directly in your browser – no downloads, no switching tabs.
+ Compare
Data month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.