Simple audio editor, in your browser

Cut, remove silences, set each clip's volume and fades, normalize, export to mp3, wav or m4a.

Drop your audio here or click to choose

mp3, wav, m4a, aac, ogg, flac. Up to 2 GB.

The sound is measured by playing the file at high speed, so a long recording takes a while. Nothing is uploaded and nothing is held in memory: you can stop at any point.

audio

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Length

After cuts

Split and delete on the timeline to cut parts out.

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Sound

Normalize volume

Makes quiet and loud parts sit at the same level. It evens out the whole file, so it can soften the volume changes you made to single clips.

Export

Format

mp3 plays everywhere. wav keeps every bit, and weighs it.

Quality

192 kbps is plenty for speech.

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Click a clip to select it, then drag its edges to adjust it.autosave

What this tool does

The jobs you do before publishing a recording, in one export: split it and delete the parts you do not want, or remove the long pauses in one click, set the volume and the fades of each clip, bring the whole file to a standard loudness. It opens MP3, WAV, M4A, AAC, OGG and FLAC, and writes MP3, M4A or WAV. Everything happens inside this browser tab, so nothing is uploaded and a long recording is ready the moment you pick it.

At a glance

What it does: cut an audio file into clips, remove long pauses automatically, set the volume and the fade in and fade out of each clip, normalize the whole file for speech, and export.
Opens: MP3, WAV, M4A, AAC, OGG and FLAC files, up to 2 GB.
Exports: MP3 or M4A at 128, 192 or 320 kbit/s, or WAV (16-bit), at 48 kHz.
Normalization: single-pass loudness normalization to -16 LUFS integrated, with a true peak ceiling of -1.5 dBTP.
Runs: in the browser, on your computer. Nothing is uploaded, there is no account and nothing to install.
Price: free.

What it does not do

It is deliberately a simple editor: one track at a time, cut and levelled. There is no noise reduction, no equaliser, no de-esser, no multitrack mixing and no speech transcription. It is the last step before you publish a file, not the place you repair one.

Normalize audio online — what normalizing changes, the difference between peak and perceived loudness, and the steps in this tool.
My audio came out too quiet — why a recording ends up faint, why turning up the player is not the same as fixing it, and which quiet files can be rescued.
How loud should a podcast be — LUFS explained from scratch, the targets the platforms normalize to, and what happens above and below them.
Cleaning up audio for a podcast — where levelling, trimming and fades belong in a weekly publishing routine.

Cutting the silences out of a video is the other tool: remove silence from video.