GIF Frame Metadata

Animated GIFs store more than images. Each frame has a delay, dimensions, offset, disposal method, and optional transparency.

Exporting that metadata as JSON or CSV is useful for QA, debugging animation timing, and rebuilding a GIF accurately in another tool.

A frame smaller than the canvas carries an x/y offset that says where it is painted. The tool composites these partial frames before it shows you the full picture.

Delay is how long a frame stays visible. Offset is where a smaller frame is placed on the full canvas. Disposal controls what happens to the previous frame before drawing the next one.

Transparency indicates whether a frame contains alpha information. Checking these values before export helps catch timing or compositing mistakes.

Delay is measured in milliseconds per frame. Adding up the delays gives you the real length of the loop, which is often different from what a preview suggests.

Disposal tells the decoder what to do with the current frame before the next one draws: leave it, clear it, or restore the background. Wrong disposal handling is a common cause of ghosting artifacts.

Export CSV to compare frames in a spreadsheet, or JSON for scripts and build pipelines. This is useful when documenting animation issues or checking a sequence before shipping.