Caption Cleanroom · local caption QA

VTT to SRT converter

Choose or paste WebVTT, select SRT as the output format, clean the preview, inspect every reported repair, and download the converted file. The workflow keeps your caption text in the browser.

Useful QA before export

Review malformed timestamps, overlaps, empty cues, long lines, and heuristic reading density. Optional overlap clamping only applies when positive duration remains.

Convert WebVTT to SRT locally → · VTT validator

No certification or upload guarantee is claimed.