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.

Browser-native video

Trim video

Re-record a start and end range with browser-native codecs.

Local Blob URL

Choose a video fileMP4, WebM, MOV, OGV, or any container your browser can play

Open video

Video preview appears here.

Native capture unavailableUse current Chrome or Edge with captureStream and MediaRecorder support.

Start (seconds)End (seconds)