Hitbox & Collision Marker Kit

HITBOX & COLLISION MARKER KIT

Keep collision data with the sprite while you animate. This Aseprite extension lets you draw named hitboxes, hurtboxes, solid areas, and trigger zones directly on the frame, then export clean JSON for your game.

WHAT IT DOES

• Marks hitboxes, hurtboxes, collision areas, and trigger zones with four draggable points.
• Syncs a selected marker across the frames you choose.
• Checks marker bounds before you export.
• Exports simple engine-neutral JSON.

START HERE

1. Select an area on the current frame.
2. Name the marker, then adjust it with the four visible points.
3. Use Marker Check to find empty or off-canvas bounds.
4. Export JSON when the animation is ready.

INCLUDED

• Aseprite extension.
• Editable animated sample and example JSON export.
• Short setup and workflow guide.

Requires Aseprite 1.3 or newer. Everything runs locally in Aseprite.

Thank you for giving this a try. If you have an idea, spot something that could work better, or would like to see another useful tool, please leave a comment. I’d genuinely love to hear from you.