Worker-powered audio
Microphone recorder
Record with MediaRecorder, preview it, and export WAV.
Microphone readyPermission is requested only when you start. The stream is never uploaded.
Load audio to generate a local waveform.
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 Browser only