polyshA little tool. A clearer workflow.
Free VTT Validator
Use the free vtt validator with SRT or WebVTT captions. Your files stay in your browser.
✓ Runs in your browser✓ No uploads✓ No account required
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How to use VTT Validator
- Paste subtitle text or choose a local subtitle file.
- Adjust the text or timing controls, process your captions, then download the result.
Know your result
Text-based SRT and VTT processing. Keep a copy of your source file. Advanced VTT styling, regions, and positioning may be normalized or omitted during conversion.
Files and pasted content are processed on your device. Polysh does not receive your input through these tools.