Homepage

Drop audio or click to browse

MP3, WAV, FLAC, M4A, OGG, and more

Spatial
Drag to select · Scroll to zoom · Shift+drag to pan · Double-click to seek
Selection analysis
Equalizer · 18 bands

Filters

0 = off · live in Enhanced preview

Level & fades

When classic enhance is off

Echo

Classic enhance

Export only - not in live preview

Trim / Silence Remover

Basic time controls (export via atrim + silenceremove); use waveform selection then apply.

Pitch / Tempo

atempo / asetrate in af (export); live preview limited to eq/volume.

Advanced Effects

Compressor / gate / reverb / chorus via compand / agate / aecho / chorus (wasm limits may fallback).

Voice Enhancer / Noise Gate

Volume Normalizer (LUFS)

Uses loudnorm when Normalize checked (enhance off); see Level section.

Spectrogram Viewer

Live during playback (attach analyser). Static capture basic.

Tool guide

Audio waveform editor with EQ and export

Load audio, shape it on a full-width waveform, and export enhanced results.

  • 18-band EQFilters, echo, level tools, and classic enhance presets.
  • Live playbackHear changes while the waveform and transport stay in sync.
  • Spatial exportStereo and surround layout chips for export.
  • ffmpeg.wasmTrim and encode downloads without a server upload.

Surround upmix applies on export; live monitor stays stereo on supported layouts.

How it works

  1. Upload audio Load MP3, WAV, FLAC, or other supported formats.
  2. Edit Adjust EQ, filters, and presets while the waveform plays.
  3. Export Choose format and spatial options, then download the encoded file.

FAQ

Is audio uploaded for processing?

No. Web Audio handles live playback and effects; ffmpeg.wasm encodes exports locally.

Which formats can I load?

Common formats such as MP3, WAV, FLAC, and M4A depend on browser codecs and ffmpeg.wasm support.

What is spatial stereo?

A live monitor layout chip for preview. It is not licensed Dolby Atmos or Apple Spatial Audio.

Can I export surround formats?

5.1, 7.1, and related layout chips apply on export. Live playback may remain stereo while editing.

How do I use the 18-band EQ?

Load a file, open the Editor subview, and adjust bands while the waveform and transport stay in sync.

Where are export settings?

Use the Export subview for format, quality, and spatial export options before download.

Why is export slow?

Long files and surround encodes are CPU intensive in WASM. Close other tabs and try a shorter trim.

Can I save EQ presets?

Yes. Save preferences in the Settings subview; they persist locally on this device.

What does Metadata show?

Read-only technical details for the loaded file such as duration, channels, and container hints.

Account

Sign-in is not available on this site. All core tools work without an account.

WARNING! Unsaved work

If you navigate away without saving, you will lose progress since your last save.