OptiSheet.app

The Fastest Texture Packer for Modern Web Dev

Pack, compress, and export sprite sheets directly in your browser. Blazing fast WASM compression with zero server uploads.

Built for High-Performance Workflows

Multi-Atlas Output

Automatically split large sprite sets across multiple atlas textures with intelligent packing.

AVIF/WebP WASM

Browser-native, ultra-fast compression yielding smaller files than traditional PNGs.

Visual 9-Patch Editor

Define stretchable UI areas visually with a built-in interactive 9-patch editor.

Free Forever

Friction-free, instant packing for quick tasks.

  • All packing algorithms
  • PNG, JPEG, WebP & AVIF output
  • PixiJS, Phaser3, Unity & Godot JSON
  • 9-Patch editor, animation preview
Start Packing Free

Pro License

One-time
£14.99
  • Save & load projects (.opti files)
  • Multi-atlas output for large projects
  • Smart sprite sheet splitter
  • Offline PWA install
Get Pro License