100% Client-Side Sandbox · Zero Audio Uploads
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
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audio.mp3
Duration: 00:00.000
Sample Rate: 44.1 kHz
3 Steps to Cut & Shift Audio
Step 1:
Load Audio File
Select or drag your music or voice audio file.
Step 2:
Set Range & Speed
Adjust start/end markers on the waveform and audition with variable speeds.
Step 3:
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.