Online Audio Editor — Multi-Track Editing in Your Browser (Free, No Upload)

This tool works best on a desktop browser.

Drop audio files here or click [Upload files]

Load several at once — files never leave your computer

Media bin · drag items onto the timeline

Clip Volume 0.0dB ◢ Fade in s ◣ Fade out s Drag a clip's top corners to set fades

0:00.0 / 0:00

⇧click: multi-select · drag clip: move · drag edge: trim · top corner: fade · empty: seek

How to use the audio editor

Click Upload files (or drag audio files onto the page) to add them to the media bin.

Drag media from the bin onto the timeline. Drop more than one to place them back-to-back.

Arrange your edit: drag clips to move them, drag a clip edge to trim, press B to split at the playhead, and drag a clip's top corners to add fades.

Balance levels with the per-clip volume slider, Normalize, and the per-track volume, mute and solo controls.

Click Export mixdown for a single WAV or MP3 file, or Export clips to save every clip as its own WAV.

Features

Multi-track timeline with snapping, markers, looping and insert (ripple) editing

Fades, per-clip gain and one-click normalize

Opens multi-hour WAV recordings by streaming from disk — plus MP3, M4A, FLAC and OGG up to 300MB

Lossless WAV clip export (untouched clips are byte-copied, never re-encoded)

WAV or MP3 (192 kbps) mixdown with live progress

Projects save as small .json files you can reopen later

Imports region-list CSVs from the Audio Cutter

🔒 Private by design — your audio is processed entirely in your browser. Files never leave your device, and there is nothing to upload or sign up for.

FAQ

Is the audio editor really free?

Yes — it's free with no sign-up and no watermarks. The editor runs entirely in your browser.

Does my audio get uploaded to a server?

No. Files are read directly on your device and all processing happens locally in your browser. Nothing is uploaded anywhere.

Which audio formats can I open?

WAV opens natively and streams from disk, so even multi-hour recordings work. MP3, M4A, AAC, FLAC and OGG files up to 300MB open through your browser's decoder.

Can I export MP3?

Yes. The mixdown exports as lossless WAV or as MP3 at 192 kbps. Individual clips export as WAV.

Need to chop one long recording into pieces first? Use the Audio Cutter — export its region list as CSV and import it here to continue editing.

Take a break: try the Typing Speed Test or the Reaction Time Test.

`Space`	Play / pause
`←` `→`	Seek 5s (`Shift` = 1min, `Alt` = 1s)
`B`	Split the selected clip at the playhead
`Delete`	Delete selected clip(s)
`⇧click`	Multi-select clips/media — move, delete, copy, normalize together; drag bin items as a batch
`⌘C` `⌘V`	Copy clip / paste at the playhead
`⌘X` `⌘D`	Cut clip / duplicate right after
`I`	Toggle insert (push) mode
`⇧Delete`	Ripple delete (remove and pull later clips left)
`G`	Attach selected clip to the previous one (close the gap)
`Alt`+`←→`	Nudge selected clip by 0.1s (`⇧` = 1s)
`L`	Loop-play the selected clip
`M`	Marker at the playhead (double-click ruler: rename, Alt+click: delete)
`S`	Toggle snapping
`[` `]`	Jump to the previous/next clip edge or marker
`＋` `−` `0`	Zoom in / out / fit all
`⌘Z` `⌘⇧Z`	Undo / redo