Questions, answered.

Yes. The free plan is a complete audio editor — 4 tracks, unlimited edits, recording, and WAV/MP3 export — with no time limit and no signup required. Pro exists for people who need more tracks or the effects rack.

Locally, in your browser's storage on your device. MixMySound doesn't have a server that handles audio — files are decoded and processed entirely client-side, and saved projects live in your browser's IndexedDB.

Once the page has loaded, yes — editing, mixing and export all run without a network connection. You'll need a connection to load the app itself the first time.

Yes. The timeline supports touch dragging, pinch-to-zoom, and larger touch targets for trim and fade handles. It's built to be genuinely usable on a phone, not just technically functional.

MP3, WAV, OGG, M4A and FLAC — anything your browser's Web Audio API can decode.

The free plan allows up to 4 tracks per project. There's no hard file-size cap, but very long sessions are limited by your device's memory, same as any audio software.

Visit the Pricing page to purchase a license key, then enter it in the editor when prompted by any Pro feature. It activates immediately.

Yes — anything you create and export is yours to use however you like, including commercially.

Compared to Audacity: no install, works on any device with a browser, and a simpler interface aimed at quick edits rather than deep production work. Compared to most "online" editors: your audio is never uploaded to a server — everything happens on your device.

No accounts, no audio uploads. We may use anonymous, aggregate page-view analytics to understand traffic — never anything tied to your files or edits. See the Privacy page for details.

Email hello@mixmysound.com with what happened and, if you can, the browser and device you were using. We read every message.