Music Hall · room 3
Change Audio Speed
Speed up or slow down audio without changing pitch.
🔒 Processed in your browser · No upload · No sign-up
Drop an audio file here or click to browse
MP3, WAV, M4A, OGG, FLAC… (video files work too — the audio is used)
Preview the speed instantly with the player above — the export keeps the original pitch unless you tick the box.
Speed up or slow down audio
Make podcasts, lectures or songs play faster or slower — from 0.25× to 4×. By default the tempo changes while the pitch stays natural (FFmpeg's atempo filter). Tick "change pitch" for a classic tape-speed effect.
Is my file uploaded?
No. Processing happens in your browser with FFmpeg WebAssembly.