Auto Subtitle
The facts below are what the maker publishes about Auto Subtitle, checked and dated. Our editors have not written about it yet.
The facts
Each one read from Auto Subtitle's own pages, with the date it was checked.
What it does
- Burn-in captions
- Nochecked 19 Sep 2026
- Caption styling
- Nochecked 19 Sep 2026
- Debug logs
- Exported debug logs can include recognized text and timing details but do not include audio or video bytes; the guide advises reviewing logs before sharing.checked 12 Oct 2026
- Editing
- The editor supports video preview, caption overlays, a timeline, cue text and timing edits, splitting, merging, and undo and redo.checked 12 Oct 2026
- File formats
- It imports SRT, WebVTT, and Auto Subtitle project JSON, and exports SRT, WebVTT, TXT transcripts, and project JSON.checked 12 Oct 2026
- Import and export
- It imports SRT, WebVTT, and Auto Subtitle project JSON, and exports SRT, WebVTT, TXT transcripts, and project JSON.checked 12 Oct 2026
- Languages and models
- The guide lists Auto with English fallback, English, Spanish, French, German, Japanese, Korean, and Chinese, plus Tiny, Base, Large v3 Turbo, and Distil Large v3 models.checked 12 Oct 2026
- License
- The project source code is MIT licensed.checked 12 Oct 2026
- Limitations
- Transcription can take significant memory and time, the complete decoded audio buffer is held in browser memory, and videos with multiple audio streams use the first stream.checked 12 Oct 2026
- Local data
- Project autosave uses browser IndexedDB, while theme preference and diagnostic history use localStorage.checked 12 Oct 2026
- Local data and privacy
- The project says video and audio are processed in the browser, project autosave uses IndexedDB, and the app has no account system, application backend, analytics, or external AI API integration.checked 12 Oct 2026
- Local transcription
- It runs Whisper ONNX models through Transformers.js in the browser and extracts audio with FFmpeg.wasm.checked 12 Oct 2026
- Model downloads
- Network access is needed to install dependencies and normally to download each selected model the first time; cached models can run locally afterward.checked 12 Oct 2026
- Network use
- Network access is needed to install dependencies and normally to download each selected Whisper model the first time; later transcription can run locally while the model remains cached.checked 12 Oct 2026
- Operating requirements
- The README lists 64-bit Windows, macOS, or Linux with a current desktop browser, Node.js 20.19+ or 22.12+, and 8 GB RAM as a practical minimum.checked 12 Oct 2026
- Privacy and integrations
- The project states that it has no application backend, accounts, analytics, tracking, paid transcription API, or external AI API integration; selected media is processed in the browser.checked 12 Oct 2026
- Product
- Auto Subtitle is a local-first browser workspace for generating, reviewing, and exporting subtitles from video.checked 12 Oct 2026
- Purpose
- Auto Subtitle is a local-first browser workspace that generates, reviews, edits, and exports subtitles from video.checked 12 Oct 2026
- Range regeneration
- Users can regenerate selected subtitle ranges up to 29 seconds and compare multiple local alternatives.checked 12 Oct 2026
- Requirements
- The README lists 64-bit Windows, macOS, or Linux with a current desktop browser, Node.js 20.19+ or 22.12+, and recommends at least 8 GB RAM, with 16 GB or more recommended for typical use.checked 12 Oct 2026
- Subtitle export
- other formatschecked 19 Sep 2026
- Support
- The repository says issues and focused pull requests are welcome, and recommends opening an issue before larger changes.checked 12 Oct 2026
- Supported video
- Supported video inputs are MP4, WebM, MOV, and MKV, with codec support depending on the browser and FFmpeg.wasm.checked 12 Oct 2026
Money
- Free plan
- Nochecked 19 Sep 2026
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