Online Audio Editor

Open browser-decodable audio and make practical single-track edits without uploading the source; preview changes and export PCM WAV.

Audio file

Selection start (seconds)

Selection end (seconds)

Gain operation (dB)

—Duration

—Sample peak

—RMS

—Channels / rate

Choose an audio fileSingle-track edits stay in browser memory. Export is 16-bit PCM WAV; this editor does not claim lossless preservation of an MP3/AAC source codec.

Audio processing cluster

Verify the source before trusting the render

Decode locally, confirm sample rate, channels, duration and level evidence, then apply the transformation. Keep codec, browser decode and export-format limits explicit.

Start: Audio Editor Inspect a File

All 24 audio tools

Sample RateResample rate, Nyquist and output frames Stereo → MonoDownmix, correlation and cancellation risk Speed ChangerDuration, pitch and resampling behavior Loop MakerLoop boundaries, seam and repeated duration Frequency AnalyzerFFT resolution and spectral evidence Bass BoosterLow-shelf gain and clipping headroom Audio JoinerClip order, transitions and output duration Loudness AnalyzerLUFS planning, peak and dynamics

Codec and measurement boundaries

Browser decoding differs across Safari, Chrome, Firefox, iOS, and Android. Rendered edits are exported as WAV unless a tool explicitly states another supported container. Loudness analysis is a practical BS.1770-style estimate rather than a certified meter, and sample clipping checks do not replace true-peak oversampling.

Waveform-first editing

Drag directly across the waveform to set the active selection, then apply trim/delete/fade/gain/reverse operations. Undo/redo still uses the existing in-memory PCM engine; export remains 16-bit PCM WAV.