Free online audio editor
Edit and export in your browser
Open one audio file, inspect its waveform, make a focused edit, preview the result, and export it as MP3, WAV, M4A/AAC, or FLAC.
You can also drag and drop an audio file anywhere on this page.•Supports: MP3 and WAV; other formats depend on your browser
Tested inputs and output formats
MP3 and WAV are tested inputs. Other formats depend on the browser. Export as MP3, 16-bit PCM WAV, M4A/AAC at 192 kbps, or FLAC.
How to use it in 3 steps
Load, adjust, and check the result before exporting.
Open the file
Choose a tested MP3 or WAV, or use the demo audio. Other formats may open when the browser can decode them.
Make the adjustment
Cut a selection, adjust gain, use a fixed three-band EQ, apply a linear fade, change speed, filter rumble or hiss, reverse samples, or append files in sequence.
Preview and export
The editor shows duration, selection boundaries, sample rate, channels, and the relevant settings before export. Choose the output format only after this check.
Tasks that fit the editor
Prepare a voice recording
Cut mistakes, adjust gain, and apply a short fade after previewing each change.
Save one excerpt
Set exact times, keep the selection, and export the excerpt as another file.
Arrange parts in sequence
Queue files, reorder them, preview the sequence, and join them without overlap.
Make a tonal correction
Use the three fixed EQ bands and compare with the original audio.
Product evidence
What has been verified in this tool
The demo audio lets you inspect every tool without choosing a personal file. Automated tests exercise real WAV and MP3 workflows, codecs, waveform controls, and mobile layout.
Test coverage
- • Environment: capability matrix v1, unit tests, and Chromium desktop and mobile profiles.
- • Cut a selection, adjust gain, use a fixed three-band EQ, apply a linear fade, change speed, filter rumble or hiss, reverse samples, or append files in sequence.
- • The editor shows duration, selection boundaries, sample rate, channels, and the relevant settings before export.
Current limits
- • MP3 and WAV are tested inputs. Other files depend on the browser decoder, and compressed formats are re-encoded on export.
- • Performance and additional input formats depend on device memory and the browser decoder.
Online Tools to Edit, Improve and Export Audio
Cut Audio Online
Set the selection on the waveform, keep or remove that section, preview the cut, and then export. Compressed formats are re-encoded.
Adjust Volume
The control applies linear gain from 0% to 200%, shows predicted peak and clipping, and can normalize peak to −1 dBFS; it does not measure LUFS loudness or true peak.
Change Speed
After the 0.5x to 3x control is released, the editor processes duration locally to preserve pitch; extreme values can still introduce artifacts.
Remove Noise
The available controls are high-pass filtering for rumble and low-pass filtering for hiss; they do not isolate voices or learn a noise profile.
Audio Equalizer
Adjust the three fixed bands at 320 Hz, 1 kHz, and 3.2 kHz, inspect the response graph, and compare with the original.
Reverse Audio
Reverse the whole file or the current selection, preview the result, and apply it before choosing an export format.
Merge Audio Files
Add files to a queue, reorder or remove them, preview the sequence, and join them in order without overlap.
Fade In / Fade Out
Apply a linear fade at the start or end of the file and preview the selected duration before export.
Audio is processed in this browser tab
The chosen audio file is decoded and edited locally. The page may make connections for site resources and consented analytics.
File in browser memory
The audio file is not sent to the application server to perform the edit.
Device limits
Long files require more memory; the practical limit varies by device and browser.
Local export
The result is rendered in the browser. Compressed formats are re-encoded.
Web Audio API and JavaScript
Browser-based processing
const audioCtx = new AudioContext();
// edit applied locally
> preview: ready
> export: user selects format
Questions about free online audio editor
Answers based on the current controls and limits.