Apply blur areas frame by frame and re-encode the GIF.
MEDIA TOOL
Dedicated media workbench in progress
GIF, video and frame extraction need dedicated decoding pipelines — a plain image editor will not stand in for them.
Keyframe area tracking, time ranges and export for short videos.
Extract high-resolution PNG frames by time point or interval.
In the meantime, use full-image blur or manual brushing for static images.
In-browser processing
This is a standalone tool entry. It currently shares the local image editor; dedicated pipelines for grain, video frames, GIF and video are coming.