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Tools

26 tools, all running locally. Tools marked FF use ffmpeg.wasm for real codec conversions.

Edit

Keep a selected region and discard the rest.

Remove a selected region and rejoin the audio.

Split a file into two clips at a timestamp.

Join multiple audio files into one track.

Add a smooth volume ramp at the start.

Add a smooth volume ramp at the end.

Boost or attenuate gain in decibels.

Normalize Audio

Bring peak level to a target loudness.

Play the waveform backwards.

Convert

Re-encode to WAV with custom sample rate & channels.

Decode MP3 and export lossless WAV.

Encode MP3 in-browser via ffmpeg.wasm.

OGG/Vorbis encode via ffmpeg.wasm.

Decode OGG, encode MP3 via ffmpeg.wasm.

Downmix stereo channels to a single channel.

Extract Audio from VideoFF

Pull the audio track out of MP4/MOV via ffmpeg.wasm.

Compress

Shrink file size by lowering sample rate, depth & channels.

Reduce File Size

Target a smaller output with a quality preset.

Enhance

Speed up or slow down playback (pitch shifts).

Detect and trim quiet sections with a threshold.

Create

Record from your mic, then trim & export — locally.

Cut a 15–30s clip with fades for a ringtone.

Podcast Clip Maker

Grab a clip, normalize and add fades for sharing.

Append clips in order into one continuous file.

Batch

Convert many files to WAV at once, download as ZIP.

Compress a folder of files together.