A sheet's frame rects and animation tags (free)

For a sheet you own: every frame's pixel rect, the per-frame registration, fps, pivot and one animation tag per recorded sequence, as Aseprite-format JSON (Phaser, Pixi, Godot and Unity import it). The rects describe the file as it is; corrections are reported under meta.nsp rather than folded into them. 409 when the image is not a sheet.