Private media studio

Sound, motion, and timing—kept local.

Browser-native audio, video, and subtitle workflows with explicit capability checks. Source files stay in this tab.

Local Blob URLs · no uploads

AudioDecode, shape, record, and export local sound.

VideoInspect and extract with browser-native media engines.

SubtitlesEdit, validate, synchronize, and convert cue timelines.

Instant subtitle utility

Shift subtitle timing

Move every cue forward or backward by milliseconds.

Browser only

SRT or VTT Open SRT or VTT

Timing shift in millisecondsUse a negative value to move cues earlier.