AI Media Generation
OpenSubs
Free AI subtitle generator that runs entirely in your browser
- 0community votes
- 34DR by Ahrefs −1 (down) since last check
Ahrefs Domain Rating signal 13 Nov 2026, signal shifted 26 Oct 2026.
Transcribe speech to subtitles, translate them into 20 languages, style them with 12 presets, and burn them into videos—all on your machine with no uploads.
What it is
OpenSubs is a browser-based tool for creating subtitles from video audio. It transcribes speech using Whisper, which runs locally on your machine via WebAssembly or WebGPU. You can translate subtitles into 20 languages using Chrome's built-in translator at no cost, or optionally pay for cloud translation for more natural results. The tool includes 12 subtitle styles with word-by-word highlighting, allows editing of subtitle text, and can burn subtitles directly into MP4 files or export them as SRT, VTT, ASS or TXT files. All processing happens on your device—videos are never uploaded, and the entire codebase is open source under AGPL-3.0-or-later.
Systems
- Speech recognition in the browser using Whisper
- Translation to 20 languages including Chinese, Japanese, Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Polish, Dutch and Ukrainia
- Burn subtitles into MP4 without watermark
- Export to SRT, VTT, ASS and TXT formats
- Live subtitles over video playing in browser tabs via extension
- Support for multiple video formats including MP4, MOV, WebM and MKV
- No server processing—all work runs locally on user's machine
Pricing
Free: transcription, translation on-device, all 12 subtitle styles, word-by-word highlighting, trimming, burning into video, and all export formats. Credits: $5 for 1,000 credits for cloud translation (approximately 1 credit per 30 subtitle lines).
Want to see what OpenSubs does next? Follow them for milestones, new products and stories by email.
OpenSubs metrics
Signal readout for opensubs.app: Ahrefs Domain Rating and Majestic link signals, arrows for the change since the last scan.
- 34 Domain Rating −1 (down) since last check
- 10 Trust Flow no change since last check
- 30 Citation Flow no change since last check
- 96 Referring domains no change since last check
- 1,493 External backlinks no change since last check
Ahrefs Domain Rating signal 13 Nov 2026, signal shifted 26 Oct 2026. Strongest signal topic: Computers/Software/Directories (10). Majestic signal 25 Oct 2026, signal shifted 25 Oct 2026. Link signals from Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
OpenSubs domain signal
Show the signal details
Public RDAP record, last read 12 Nov 2026, 02:14 UTC.
- Domain age 2 months
- Registered
- Expires
- Registrar Namecheap Inc.
- DNSSEC Not signed
OpenSubs post-launch signal
The record for OpenSubs after its launch on Nexora Launch (25 October 2026), from the readings we keep.
- 34 Domain Rating (Ahrefs) −1 (down) since launch
at launch: 35 (25 Oct 2026); latest: 12 Nov 2026 - 10 Trust Flow (Majestic)
first measured 25 Oct 2026 - 96 Referring domains (Majestic)
first measured 25 Oct 2026
Day 18 since launch. Next receipt: day 30, 24 Nov 2026. A change here is a reading, not a claim about its cause; lots of things move these figures. Anything we do not measure is not shown.
Got a launch coming up?
Plan your launch with our free playbook, from preparing your listing to choosing more launch directories.
Quick answers
- Is my video uploaded anywhere?
- No. OpenSubs reads the file directly in your browser, and all processing—transcription, styling, translation and burning—runs on your own machine. There is no upload endpoint in the product. Only subtitle text or audio can leave your machine if you explicitly choose a cloud option.
- Do I need an account to use OpenSubs?
- Not to try it. Transcription, translation on your device, styling, trimming and exporting subtitle files work without signing in. Burning subtitles into a video and paying for cloud translation both require a free sign-in.
- Which languages can OpenSubs translate subtitles into?
- Twenty languages including Simplified and Traditional Chinese, Japanese, Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Polish, Dutch and Ukrainian. Fonts for non-Latin scripts are bundled so Chinese and Arabic subtitles render correctly.
- Is OpenSubs open source?
- Yes, under the AGPL-3.0-or-later license. The same engine is compiled to WebAssembly for the browser and to native binaries for the desktop app and command-line tool, so all three produce identical output.
- Is my API key saved?
- No. An API key you enter to use your own provider is held only in the page's memory. It is never written to localStorage, sessionStorage, IndexedDB or cookies, and your browser sends it directly to the provider you picked — OpenAI or another OpenAI-compatible server, Anthropic or DeepL — without passing through OpenSubs servers. Reloading or closing the tab clears it, so you enter it again next time.
OpenSubs has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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