Your audio stays yours
All processing runs locally via WebAssembly. Your recordings, interviews, and sessions never leave your machine — not even for AI transcription.
Cut, fade, adjust levels, and transcribe long audio files — all inside your browser. WAV, MP3, M4A, FLAC supported. Nothing leaves your device.
No subscription, no data collection — just a powerful audio workstation in your browser tab.
All processing runs locally via WebAssembly. Your recordings, interviews, and sessions never leave your machine — not even for AI transcription.
Open a URL and start editing. Supports WAV, MP3, M4A, FLAC, OGG and more. Non-WAV files are auto-converted via an embedded FFmpeg WASM build.
The SenseVoice model runs entirely in your browser and supports Chinese, English, Japanese, Korean, and Cantonese — with timestamped output and SRT export.
From basic trimming to multi-channel waveform analysis — in one tab.
Drag-select any region and delete, silence, or extract it. Millisecond-accurate playhead positioning.
Apply exact dB gain to selections. Fade in, fade out, or silence regions with one click.
Full history panel. Step back through every operation without losing any work.
Stacked real-time waveform with calibrated dB ruler and FFT spectrogram to spot problems fast.
Drop named markers on the waveform. Import and export in JSON format for batch annotation workflows.
Export lossless WAV at the source sample rate and bit depth. No quality loss from repeated encode/decode cycles.
Recognize speech on any selection or the full file. Export timestamped text as SRT subtitles or JSON.
SharedArrayBuffer-backed audio engine handles multi-hour files without memory exhaustion or browser freezes.
Whether you're a solo creator or a production team, it fits.
The interface is intentional — if you've used a DAW or even a video editor you'll feel right at home.
Click "Open Audio" or drag a WAV, MP3, M4A, or FLAC file onto the page. You can also paste a URL to auto-download and load a remote file.
Drag to select any region. Then use the toolbar to delete, adjust gain, fade, silence, copy, or trigger AI transcription on your selection.
Hit "Export WAV" — the browser downloads a lossless WAV file directly to your device. No cloud roundtrip, no waiting for a server.