Shift with a clear sign.
Positive seconds move cues later; negative seconds move them earlier. Invalid changes are rejected as a whole.
A quiet desk for the timing details
Give every line
its moment.
Repair a constant offset, inspect a drifting track and keep the cue text close to the numbers. Your subtitle file stays in your browser.
Open the cue editor ↗Free · No account · No media upload · No AI/API
FICTIONAL TIMING EXAMPLE
00:00:05.250
Let the story arrive.
A second voice enters.
01s03s05s07s
Overlaps stay visible. You decide what belongs.
Correct a linear drift.
Map two source reference times to two target times. Inspect the resulting scale before carrying the file onward.
Audit, edit, keep a copy.
See overlap, empty cues and stored-text density. Edit cue times and text, then export local SRT, VTT or JSON.
Notes for getting the timing right.
TIMING NOTE 01
Choose a shift or a two-anchor correction ↗
A constant offset and a gradual drift need different arithmetic.
TIMING NOTE 02Inspect overlap without treating every overlap as a mistake ↗
The audit reports timing facts and rough text-density flags.
TIMING NOTE 03Know what a subtitle conversion preserves ↗
The supported subset and local file behaviour are explicit.
Manual cue timing, not automatic audio synchronisation. Preview is text-only and literal. Supports a documented cue-only subset of UTF-8 SRT/WebVTT; check the result in your target player.