2D Sprite Rigging: Free Skeleton Animation Editor

Rig a 2D sprite in your browser: upload a character, place the joints, pose the bones and keyframe a walk, attack or idle. Export the animation as PNG frames or a sprite sheet. Free, no account needed.

Start from a PNG of your character, or pick one from your Voidless assets. Click Rig and place the joints on the sprite: hips, knees, shoulders, elbows and head. The editor builds the bones and binds the picture to them, so arms and legs bend instead of sliding. Drag a joint to re-fit the skeleton, or bind triangles to a bone by hand where the bend looks wrong.

Animate in two ways. Add a ready-made clip (Idle, Walk, Run, Jump, Punch or Die) and the motion is applied to your rig, or pose the bones yourself and key each step. IK constraints let you pose a whole limb by moving its hand or foot, and draw order per limb keeps the far arm behind the body.

When it plays right, click Export sprites to download every frame as a PNG, ready for Godot, Unity, GameMaker or Phaser. Walk, Run, Jump and Punch also come in a front-facing version.

Skeletal animation saves drawing every frame by hand: one sprite and a set of bones give you as many moves as you need, and the same rig plays walk, run and attack. It suits side-view platformer characters and front-facing top-down sprites alike, and works with pixel art and painted art.

For the cleanest results, start from a character drawn standing with its arms a little away from the body, so each arm can bend without pulling the torso. Keep the background transparent, and make the sprite at least 64 pixels tall so the joints have room. Rigs are saved with your Voidless assets, so you can come back and add more animations later.