Web Audio Cutter & Shifter
Load audio and render waveform in browser memory. Millisecond precision trim, variable speed playback (0.5x~2.0x), and lossless WAV export.
Click to upload or drag & drop audio here
Supports MP3, WAV, M4A, OGG, FLAC formats
Multi-Clip Merge Queue
0 clips3 Steps to Cut & Shift Audio
Load Audio File
Select or drag your music or voice audio file.
Set Range & Speed
Adjust start/end markers on the waveform and audition with variable speeds.
Export Lossless WAV
Audio encoder renders clean WAV file instantly in browser.
Frequently Asked Questions (FAQ)
Q: Does editing large files use internet bandwidth?
No. Web Audio API decodes audio locally using your device CPU and RAM with zero uploads.
Q: What is the exported audio format?
Exported in lossless WAV format, preserving original sample rate and stereo audio channels.
Q: Can I merge multiple audio clips without quality loss?
Yes. The tool stitches audio buffer samples in memory without re-compression, exporting pristine lossless WAV files.
Q: How do fade in and fade out options work?
Linear gain ramps are calculated at splice edges to eliminate sudden clicks and pops, ensuring smooth transitions.