Free Online Subtitle Tools
Convert, sync, fix, and edit .srt, .ass, .vtt subtitle files — instantly in your browser. No signup, no limits.
Everything runs in your browser — no account, no upload limits, no waiting. Pick a tool below to get started.
Converters
Convert to SRT
ASS, SSA, VTT, SUB, SMI, MPL2 → SRT. Batch supported.
Convert to WebVTT
SRT, ASS, SSA → WebVTT (.vtt). Batch supported.
Convert to Plain Text
Strip timestamps and indices. Export dialog only.
Convert to PDF
Turn SRT subtitles into a formatted PDF document.
Convert to UTF-8
Re-encode subtitle files to UTF-8. Fix garbled text.
Chinese Pinyin
Add pinyin romanization above Chinese subtitle text.