How WAVR works without a connection
The first time you open WAVR, your browser saves the whole app: the pages, the converter, the MP3 and FLAC encoders, the editor, the loudness meter and the BPM and key engine, well under 1 MB in all. After that, WAVR opens from that saved copy whenever there's no network. When you are online it checks for a newer version first, so you always run the latest one.
None of this changes where your audio goes. Online or offline, files are decoded and encoded in the tab and never uploaded.
Install on your device
- Chrome, Edge, Dia and other Chromium browsers (Windows, Mac, Linux, ChromeOS, Android): click Install WAVR at the top of the page, or the install icon at the right of the address bar.
- iPhone and iPad: open wavr.website in Safari, tap Share, then Add to Home Screen.
- Safari on Mac (Sonoma or later): choose File → Add to Dock.
- Firefox: if it doesn't offer to install WAVR, it still works offline in a Firefox tab after one visit.
What works offline
| Feature | Offline |
|---|---|
| Convert to MP3, WAV, AIFF, FLAC | Yes |
| Convert to M4A and OGG | Yes, where your browser has the encoder built in |
| Editor, split at silence, spectrogram, loudness report | Yes |
| BPM and key detection, tag editor, file-name templates | Yes |
| Download all as ZIP | Yes |
| Shared conversion counter | Pauses, shows this device's count instead |
| Checking a Pro license key | Needs a connection the first time |
Offline questions
Do I need to install WAVR to use it offline?
No. After one visit while online, WAVR also opens in the browser with no connection. Installing gives it its own window and an icon in your apps or on your home screen.
How much space does it take?
Well under 1 MB for the app itself. Converted files live in memory until you download them, so they don't fill up storage.
How do I get updates?
WAVR checks for a newer version every time it opens with a connection and uses it straight away. There is nothing to update by hand.
How do I remove it?
Uninstall it like any app (right-click the icon, or long-press on a phone). To clear the saved copy too, remove this site's data in your browser settings.