Audio Editor - Free Online | FunToolX
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Audio Editor
Load 1–2 audio files, pick an operation tab; "Multi-track mix" stacks up to 8 tracks. Preview and export WAV.
About this tool
Audio Editor is a free online tool. All-in-one editor: cut, join, change speed, reverse, adjust volume, fade and normalize.
After uploading the audio file, the tool displays a complete waveform editing interface. Supports basic operations: cut, copy, paste, and delete. You can select areas to apply effects: fade-in, volume normalization, noise reduction, equalizer, reverb, compression, etc. Supports undo/redo operation history.
Audio editing occurs simultaneously in the time domain and frequency domain. The time domain operation directly modifies the sampling point data, and the frequency domain operation modifies the frequency components through FFT transformation and then inversely transforms them. Noise reduction uses spectrum subtraction to identify the noise spectrum and subtract it from the signal. The equalizer uses multiple bandpass filters to adjust the gain of each frequency band.
Suitable for podcast post-production, music demo editing, recording restoration, and sound design. Support multi-track mixing (superimposing multiple audios). Export to MP3, WAV, OGG and other formats. All processing is done locally on the browser to protect privacy.
Online audio editor provides functions such as cutting, copying, pasting, fade-in, volume adjustment, noise reduction, etc., and supports multi-track editing and effects.