Online audio mastering, tuned right
True parallel 3-band dynamics, careful gain staging, and a transparent limiter — rendered entirely in your browser.
Drag & drop a song, or browse
WAV · MP3 · FLAC · AAC — processed 100% client-side
active song
None
Input headroom gain
0.0 dB
De-harsh restoration
pro
Tames 3.4kHz harshness & sub-mud buildup
Ready. Load a song to master.
How mastering works here
Upload track
Import a WAV or MP3. All processing runs locally in your browser — nothing is uploaded anywhere.
Pick a profile
Nine tuned presets balance loudness against clarity, aiming for a streaming-ready level without crushing dynamics.
Export instantly
Renders as 16-bit WAV using an offline audio graph that mirrors what you hear in preview.