Subtitle Editor
Edit subtitle text and timing, fix overlaps, shift timestamps, convert formats.
How to subtitle editor
- Load an SRT, VTT, ASS or SSA file.
- Click any cue to edit its text or start/end times. Use the shift control to fix systematic timing drift.
- Export in your chosen format.
About this tool
Subtitle timing problems come in two flavours: constant offset (every line is three seconds late because the subtitle was made for a different cut) and drift (they start in sync but gradually fall behind or run ahead, usually due to a frame rate mismatch between PAL at 25 fps and NTSC at 23.976 fps). The shift control fixes the first; the scale control fixes the second.
Editing individual cues is the other half of the work: correcting OCR errors from subtitle extraction, splitting long cues that flash past too quickly to read, or fixing line breaks for readability. The 42-character line limit is the broadcast standard because it keeps both lines readable at typical TV viewing distances — the same reasoning applies to video on the web.