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

Mute video

Re-record the selected segment without its audio track when supported.

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.

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