Audio tools

Convert audio files between MP3, WAV, OGG, AAC, and FLAC entirely in your browser. No upload required.

Trim the start and end of any audio file to precise timestamps. Runs entirely in your browser.

Reduce audio file size with a quality slider. Shows before and after file size.

Combine two audio files sequentially or with a crossfade transition. Browser-based, no upload.

Analyse audio loudness and normalise to a target level. Uses the Web Audio API — no upload.

Reverse any audio file and download the result. Works on MP3, WAV, OGG, FLAC, and more.

Upload an audio file and automatically detect its tempo in beats per minute using the Web Audio API.

Brown, pink, and white noise for sleep, focus, and relaxation. No account — runs entirely in your browser.

Tap to find the BPM of any song. Also calculate BPM-based delay times.