Formats

Supported Formats

Practical guidance for browser playback support, direct video URL expectations, and export image formats.

Compatibility reminder

Container names such as MOV, AVI, and MKV do not guarantee playback. The browser still has to support the codec inside the file.

MP4: Best overall compatibility in modern browsers, especially when encoded with H.264 video.
WebM: A strong browser-native option, especially in Chromium-based browsers and Firefox.
MOV: Common in editing workflows, but playback depends on the codec inside the file.
AVI: Container support exists, but browser playback is inconsistent and strongly codec-dependent.
MKV: Container support exists, but codec support varies widely between browsers and operating systems.

JPG: Smaller files with adjustable quality. A good default for thumbnails and general export.
PNG: Lossless output with larger file sizes. Best when you want maximum image fidelity.

The URL must point directly to the video file rather than a watch page or preview page.
The remote host must allow the browser to request and play the file.
Even a valid file extension can fail if the server returns something other than a playable video response.