Audio Editor – User Guide

Edit audio locally in your browser with waveform + spectrum views, selection editing (trim/cut/copy/paste), normalize/amplify/fade, real-time effects, and microphone recording. Import MP3/WAV/M4A/OGG/FLAC and export WAV.

Overview

Audio Editor is a free online audio editor that works locally in your browser.

Workflow: import → select → edit/process → export.

Import audio

Supported: MP3, WAV, M4A, OGG, FLAC (browser dependent).

Max file size: 100MB.

If import fails, convert to WAV and try again.

Select a region

Use the waveform to select start/end precisely.

Zoom in for accurate cuts on short clips.

Selection can be used for trim, cut, fade, and exporting only a range.

Edit actions

Trim: keep only the selection.

Cut: remove the selection.

Copy/Paste: copy a region and insert it back.

Undo/Redo: experiment safely.

Processing

Normalize: make the track consistently loud by adjusting peak level.

Amplify: increase volume (avoid clipping).

Fade In/Out: smooth boundaries to avoid clicks.

Effects

Available effects include EQ, Compressor, Reverb, Delay, Distortion, Chorus, Flanger, Bitcrusher.

For speech: start with EQ + light compression.

For music: add reverb/delay subtly to keep clarity.

Tips & troubleshooting

Clicks at cut points: add a very short fade in/out.

Too quiet: normalize first, then amplify if needed.

Large files and heavy effects may be slower on low-end devices.

Export (WAV)

Export format is WAV (lossless).

You can export the whole file or only the selected range.

If you need MP3, export WAV first and convert afterwards.