Technical
Browser Compatibility
Compatibility depends on the browser, operating system, codec, container, memory, and extraction size. There is no universal file-size or format guarantee.
Last updated July 13, 2026
Recommended browsers
Current Chromium-based desktop browsers offer the strongest path, including WebCodecs where available. Safari and Firefox can use the browser video-element path for files they can decode. Keep your browser updated.
Containers are not codecs
MP4, MOV, WebM, and MKV are containers. A file can have a familiar extension but contain a codec your browser cannot decode. H.264 video in MP4 is generally the broadest browser-compatible choice. Other combinations vary by browser and operating system.
File size and memory
Local processing removes an upload cap, but it does not remove device limits. Large files, high-resolution sources, long all-frame jobs, and PNG output can use substantial memory and disk space. Start with a short range or interval sample before a large batch.
Mobile devices
Some browser-compatible clips work on current phones and tablets, but mobile memory, background-tab behavior, download handling, and codec support are more constrained. Desktop is recommended for long, high-resolution, or all-frame exports.
Image exports
JPG and PNG have broad support. WebP export depends on the selected browser path. ZIP availability does not guarantee that a device can hold every requested frame in memory. See Privacy & Local Processing for what remains on your device.