This tool supports all audio formats that your browser can decode, including MP3, WAV, OGG, FLAC, AAC, and M4A. For best compatibility, we recommend using WAV or MP3 files. The exported trimmed audio is always in WAV format (16-bit PCM) for maximum quality and compatibility with other software.

Drag the green handle to set the start point and the red handle to set the end point of your selection. For finer control, use the zoom slider to magnify the waveform — this lets you make frame-accurate cuts. You can also use the mouse scroll wheel while hovering over the waveform to zoom in/out quickly.

When Loop mode is enabled, playback will seamlessly repeat the selected region. This is perfect for practicing musical phrases, creating seamless loops for game audio, or carefully analyzing a specific section. The loop uses the browser's native audio looping with sample-accurate precision, ensuring zero gaps between repetitions.

No. All processing happens entirely in your browser using the Web Audio API. Your audio file never leaves your device. This means your data stays 100% private and secure. You can even use this tool offline after the page has loaded.

There is no hard limit, but since the audio is decoded and stored in memory, very large files (over 200–300 MB of raw PCM data, equivalent to ~30–40 minutes of CD-quality stereo audio) may cause performance issues on devices with limited RAM. For most common use cases — song clips, voice recordings, podcast segments — performance will be smooth and responsive.

Yes! Press Space to play/pause, L to toggle loop mode, and R to reset the selection to the full audio length. Use +/- keys or the scroll wheel on the waveform to zoom in and out. Arrow keys ← → nudge the view left/right when zoomed in.