Parallax Loop Studio Lite for Aseprite

Menu, title and level backgrounds need a looping scroll that really loops. Parallax Loop Studio turns your stacked background layers into one seamless, tagged scroll animation: set a speed and direction per layer, and it works out the exact frame count after which every layer is back at its start. Pixel-exact wrap-around, no blur, no new colours.

• First 3 visible layers, scrolling left, whole-pixel speeds, loops up to 16 frames, Forest preset
• Live loop length in the dialog
• Wrap-around only: no blur, no partial alpha, no new colours
• RGB, indexed and grayscale sprites, Aseprite 1.3+; one Ctrl+Z undoes it

Lite: the full version adds any number of layers, left/right/up/down per layer, fractional speeds (0.5 px = alternating steps), snap speeds to a shorter loop, fit to N frames, the layers' own repeat length in the solver, three presets and a per-layer seam report: Parallax Loop Studio.

Tested in real Aseprite 1.3.18 (headless). Commercial use of the resulting artwork is allowed; no credit needed.

More Aseprite tools by the same author: Appear & Vanish FX, Hit Reaction Kit, Idle Motion Maker, Smear & Squash Studio, Selective Outline Studio, Pixel Sky & Cloud Generator (makes the sky layers).

Disclosure: the code was written with an AI coding assistant; the loops are plain pixel maths, no image AI.