Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
Drop your audio file
Reversal runs instantly
Download the reversed audio
0 bytes uploaded. Audio Reverser runs entirely in your browser using FFmpeg.wasm 8.1, RNNoise, and the Web Audio API. Your audio stays on your device at all times. No data is sent to any server — critical for sensitive interviews and confidential calls.
No — reversal is a sample-by-sample mirror operation, mathematically lossless. Re-encoding happens once at original quality.
Change audio pitch by semitones or cents while keeping the original duration intact. FFmpeg rubberband-style processing.
Open toolStretch or compress audio duration (0.5x-2x) while preserving original pitch. Perfect for matching video edits.
Open toolAdjust playback tempo by percentage. Like time-stretch but expressed as a tempo % — natural for musicians.
Open tool