Free in-browser remix desk for slowed and reverb, sped-up, daycore or nightcore-style tweaks, memes, practice tracks, or anything that fits a quick speed-and-FX pass.
Queue up to 99 local audio files; one shared effect chain so every track gets the same settings when you preview or export.
Controls: volume, bass shelf, wet or dry reverb, speed (about 0.10× to 2.00×), concert A4 reference Hz, shuffle (selected tracks only), repeat one, seek, prev and next.
Export the current track, selected tracks, or the whole queue as 16-bit WAV or MP3; pick the format before you export.
Files stay in your browser for decode and playback; Web Audio runs on your device. Nothing is uploaded for normal use unless you use a modified build that adds uploads.
Imports anything your browser can decode (commonly MP3, WAV, AAC or M4A, Ogg, FLAC, and more).
Double-click a row to select that track and play from the start; drag the handle to reorder; checkboxes choose which tracks play, shuffle, and export together.
Not a full multitrack DAW: one stereo processing path, built for fast remix-style workflows and batch listening instead of stem mixing.
On phones and tablets, processed audio is routed through the device media stack so playback can continue with the screen off when the OS allows; lock-screen play and pause work in supporting browsers. Some platforms still suspend web audio in the background, which is outside the page’s control.
Privacy and terms: use the links in the site footer.