English
Browser support
Supported browsers include current Chrome, Edge, Firefox, and Safari. Video codec support varies by browser.
Test coverage
Chromium runs the full browser test suite. Firefox and WebKit run smoke tests covering viewer UI, errors, basic accessibility, read-only version handling, and remote or custom sources.
| Capability | Chromium | Firefox / WebKit |
|---|---|---|
| Viewer and errors | Full tests | Smoke tests |
Remote or custom DataSource | Yes | Smoke tests |
| Local archives | Yes | Yes; playback depends on codec |
| Local folder import | Drag, picker, and restorable handles | Drag and picker; no handle restore |
| Restorable folder handles | File System Access | Not available |
| Directory export | Chromium only | Not available |
| Video encoding and export | WebCodecs suite | Capability check only |
| Video playback | Depends on codec | Depends on codec |
Client-side rendering
Render in the browser. No SSR, RSC, Node, or CommonJS.
If File System Access or WebCodecs is unavailable, the related feature is disabled. Other supported panels remain available. Unsupported media shows an error without affecting the rest of the viewer.
File System Access requires a secure context (https: or http://localhost / http://127.0.0.1). On plain HTTP LAN origins such as http://192.168.x.x, Chrome still exposes the API but calling it terminates the tab. Studio never invokes those APIs there and falls back to <input type="file" webkitdirectory> and webkitGetAsEntry.
See also Compatibility.