- Home
- AI Video Caption Generators
- OpenSubs
On the recordRead 11 Oct 202620 facts
OpenSubs
Plans and prices
Free
Free
Speech recognition in browser · On-device translation · 12 styles · Word-by-word highlighting
Read 11 Oct 2026 · opensubs.app
Credits
$5one-time
Cloud translation on OpenSubs’ backend · Credits never expire · Failed jobs cost nothing
Read 11 Oct 2026 · opensubs.app
On the record
- API key handling
- User-provided API keys are held in page memory and are not stored or sent to OpenSubs, according to the site.opensubs.app · read 11 Oct 2026
- Brand caption presets
- Noopensubs.app · read 22 Sep 2026
- Browser extension
- A free extension generates subtitles over video playing in a tab in Chrome, Edge and Firefox.opensubs.app · read 11 Oct 2026
- Burn-in captions
- Yesopensubs.app · read 22 Sep 2026
- Caption languages
- 20opensubs.app · read 22 Sep 2026
- Caption styling
- Yesopensubs.app · read 22 Sep 2026
- Desktop and CLI
- Free desktop builds are offered for macOS, Windows and Linux; the command-line tool is built from source, and both require ffmpeg with the ASS filter for burning.opensubs.app · read 11 Oct 2026
- Editing limit
- Cue text can be edited, but cue timings cannot be changed and cues cannot be added, deleted or merged.opensubs.app · read 11 Oct 2026
- Integrations
- The site names Claude, OpenAI and DeepL as providers usable with a user’s own API key; keys are sent directly from the browser to the selected provider.opensubs.app · read 11 Oct 2026
- Offline use
- After initial downloads, the site says it works largely offline except for cloud translation.opensubs.app · read 11 Oct 2026
- Privacy
- The site says it has no video upload endpoint; subtitle text or trimmed audio can leave the device only when the user selects a cloud option.opensubs.app · read 11 Oct 2026
- Purpose
- OpenSubs transcribes, translates, styles and burns subtitles into video, with video processing running in the browser.opensubs.app · read 11 Oct 2026
- Release status
- The site identifies current builds as release candidates and says desktop builds are unsigned.opensubs.app · read 11 Oct 2026
- Styling and export
- OpenSubs offers 12 subtitle styles, word-by-word highlighting, MP4 burn-in and SRT, VTT and ASS export.opensubs.app · read 11 Oct 2026
- Subtitle export
- other formatsopensubs.app · read 22 Sep 2026
- Support
- The site lists [email protected] for contact and problem reports.opensubs.app · read 11 Oct 2026
- Transcription
- It runs Whisper locally using WebGPU when available or WebAssembly otherwise, with Tiny, Base and Small models.opensubs.app · read 11 Oct 2026
- Translation
- It supports translation into 20 languages, using Chrome’s built-in on-device translation, user-provided provider keys or paid cloud credits.opensubs.app · read 11 Oct 2026
