Is my video uploaded to a server?+−
No. Everything happens in your browser, and it keeps working even if you go offline.
What quality are the frames?+−
The video's original resolution. PNG is lossless. HDR or 10-bit videos may look slightly different in colour, because browsers draw them as standard images.
Why won't some videos open?+−
Your browser may not support that codec (for example HEVC in Firefox). Convert it to MP4 first.
How do I get to one exact frame?+−
Focus the slider and use the ← → keys; the timestamp shows milliseconds.
How many frames can I take?+−
Up to 500 per batch, to protect memory. By hand there is no limit other than your device's memory.