A little tool. A clearer workflow.

Free Subtitle Reading Speed Checker

Use the free subtitle reading speed checker 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 Subtitle Reading Speed Checker

  1. Paste subtitle text or choose a local subtitle file.
  2. 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.