Developer Tools
Extract Track Sources
Extract track src URLs from pasted HTML before caption, subtitle, accessibility, or media migration QA.
0 / 30,000 characters. No upload, storage, or account required.
Track source extraction workflows
Use this extractor when pasted HTML needs a quick browser-local source inventory before QA, migration, cleanup, or asset documentation.
Audit media accessibility
Pair this with Extract Video Sources and Extract Audio Sources to review media files and captions together.
Clean copied URLs
Send copied VTT URLs to Remove Duplicate Lines, Sort Lines, or URL Parser.
Clean output rows
Send copied source URLs to Remove Duplicate Lines, Sort Lines, or URL Parser.
What this tool does
Extract Track Sources finds track src attributes in pasted HTML, includes kind and language when available, removes duplicates, shows source lines, and runs locally in your browser.
Common use cases
Extract track src URLs, caption files, subtitle references, kind labels, and language codes from pasted video or audio markup before accessibility QA, media migration, or documentation cleanup.
Use Extract Track Sources when you are working with copied API payloads, logs, encoded values, config snippets, identifiers, or debugging data and need a quick browser-local check before pasting the result into docs, tickets, tests, or another developer tool.
How to use it
- Paste snippets, CMS output, component templates, documentation examples, or copied source that contains the relevant HTML tags.
- Choose whether duplicate source URLs should be removed and whether labels should be normalized for comparison.
- Review extracted track sources with source lines, then copy the clean list for media QA, migration, accessibility review, or documentation handoffs.
Example workflow
Copy a small payload or encoded value from an API response, request URL, log line, or config file. Run the focused check here, confirm the output is readable, then continue with related developer data tools such as validation, formatting, decoding, timestamp conversion, or CSV/JSON conversion.
Privacy note
Track source extraction runs locally in your browser. ClearUtils does not upload, render, fetch, crawl, load, execute, or store pasted HTML.
FAQ
Does Extract Track Sources load caption files?
No. It reads pasted HTML text only and extracts track src attributes. It does not load VTT files, render media, fetch, crawl, upload, store, or log snippets.
Which track details are included?
When available, the output includes the track kind and srclang values before the source URL so caption inventories are easier to review.
Can it validate subtitles?
No. It extracts pasted track references only. Use it for inventory, migration, accessibility review, and documentation handoffs.
Explore more tools
Browse the Developer Tools hub or continue with the Developer Data Toolkit when this task is part of a larger workflow.