Video Caption Fetch

Video Caption Fetch

Created by Larry Xu.

Import YouTube and Bilibili transcripts into Obsidian notes. Read platform captions first, then optionally transcribe unavailable captions with Groq or OpenAI. Preserve the original speech: no automatic translation or summarization.

Desktop only · Obsidian 1.13.0+ · MIT

Use

Common settings are on the main page. Open Note properties to choose video details, or Advanced for folder shortcuts, language overrides and recognition performance. Only the selected provider’s API key is shown.

For speech recognition, set the switch, provider, API key and model, then click Save and apply. Saving does not test or charge the API. Resume a paused import after saving.

1. Install the plugin and open Settings → Video Caption Fetch.
2. For Bilibili captions that require an account, choose Sign in with QR code, scan in the Bilibili app and confirm. A successful account check shows Signed in, your name and UID.
3. Run Import video transcript from the command palette or ribbon. Paste one URL per line (up to 100 per batch).
4. Keep Create a new note enabled for separate files, or disable it to insert at the selection in the active Markdown note. Folder templates, filename templates, timestamps, metadata fields and language preferences are configurable.
5. To transcribe when captions are unavailable, enable Speech recognition, select a provider and enter your own API key. Leave the spoken language blank for automatic detection, or use zh, en, etc. This is the input speech language, not a translation target.

Use Load languages to select an existing platform track. The plugin never asks a platform to generate a translation. Default selection preserves the platform's track order rather than forcing English.

Pause, resume and costs

• Videos run sequentially. Metadata requests share one lane with an 800 ms minimum interval; audio ranges use a separate lane of at most four requests. Default recognition concurrency is two chunks.
• Successful metadata/caption responses are reused for up to two minutes in the current plugin session (up to 32 responses, at most 2 MB each). Expiring signed caption URLs expire sooner. Refused audio addresses can be refreshed.
• HTTP 429 honors Retry-After (seconds or an HTTP date). Short waits have bounded retries; long/exhausted cooldowns pause the queue. YouTube bot verification stops the client ladder and pauses the batch immediately.
• Use Pause transcript import to pause. Resume paused transcript import continues the saved queue, including after an Obsidian restart. Completed videos and saved recognition chunks are not submitted again.
• A paid request is checkpointed before submission. If its result is unknown, the plugin requires Retry uncertain chunks (may charge again) before resubmitting. No client can guarantee that a provider did not charge for a response lost in transit.
• Decoded, unfinished audio is reused within the session up to a 64 MB memory bound. It is not stored on disk; after restart, unfinished audio may need downloading again. Successful recognition text survives restart. Up to 100 video/configuration checkpoints are retained; older completed entries may be evicted.
• Use Discard paused import to clear the queue and checkpoints explicitly. Existing notes remain. A later import can incur new recognition charges.

A node/IP change may restore access, but is not an automatic plugin feature. If YouTube requests verification, open the video in your browser, resolve access, then resume. Private, deleted, geographically restricted, account-gated and live videos may remain unavailable. Platform APIs are undocumented and can change; universal availability is not promised.

Install before directory approval

Download main.js, manifest.json, and styles.css from the release. Put all three in:

<Vault>/.obsidian/plugins/video-transcript-fetch/

Reload Obsidian and enable Video Caption Fetch. Use a disposable vault first. Download the three individual release files; no ZIP is required.

When upgrading, replace only these three files in the existing plugin directory. Keep its data.json; it contains your settings, Bilibili session and progress. Creating a separate version-named directory without moving settings loses the visible login state. Do not enable two copies with the same plugin ID. Legacy settings from the previous video-transcript implementation are migrated when its data file is retained.

The browser extension is separate and is not needed by this plugin. The compatible obsidian://yt-transcript?url=ENCODED_URL&folder=ENCODED_FOLDER command remains available.

Network, privacy and accounts

There is no project server, analytics, advertising, telemetry, vault upload, external executable, dependency installer, or access to files outside the vault. Speech recognition is off by default; full audio recognition requires an external account and may incur provider charges. Bilibili account access is optional but often needed for captions.

Settings, API keys and the Bilibili session are stored unencrypted in the vault's plugin data.json and may be synced or backed up with it. The same file stores paused URLs, completed recognition text and temporary note-write recovery content. An unfinished insertion can temporarily retain the target note's before/after text for safe recovery. This data is not sent to any service. Discard progress removes recovery data/checkpoints; sign out removes the Bilibili session. Cancelling cannot retract a request already sent to a provider.

For issues, include plugin/Obsidian version, platform, a public video URL and the visible error. Do not attach data.json, API keys, cookies or signed media URLs.

Usage reminders

The plugin tries platform captions first and uses speech recognition only if caption retrieval fails and recognition is enabled. It transcribes the original speech without translating or summarizing it. Batch imports run sequentially and pause when YouTube requests bot verification. Use Resume paused transcript import in the command palette to continue; completed videos and recognition chunks are not processed again. Requests with an unknown recognition outcome are resent only after you confirm that they may incur another charge.

When upgrading, keep data.json in the original plugin directory; otherwise, your sign-in state and progress will not appear in the new directory. Do not upload this file to GitHub.

Development and review

npm ci
npm test
npm run lint
npm run package

Node.js 22.18+ is required for development. CI validates on Linux and Windows; live host evidence is macOS only. See ACCEPTANCE.md for exact evidence, REVIEW.md for the source/security review, and PROVENANCE.md for implementation history. Tests and similarity checks are not proof of directory eligibility. Obsidian makes the final publication decision.

Application code is MIT licensed. The bundled QR library's MIT attribution is retained in THIRD-PARTY-NOTICES.md. No legacy plugin bundle is included.

Permissions

Duplicate checking lists Markdown notes and reads their cached properties only when Skip previously imported videos is enabled. This information stays in your vault.

Clipboard access occurs only when you open the import dialog or invoke the clipboard import command, and only when Allow clipboard access is enabled. Disable it to paste video links manually. Clipboard contents are not sent to a recognition service.

The display name changed to Video Caption Fetch in 3.1.3. The plugin ID remains video-transcript-fetch, preserving installed settings and updates. Published install files have GitHub build provenance attestations. License and dependency notices remain in this repository; the dependency notice is also included in main.js.