Developer Tools
A collection of free utilities built to help mobile game developers optimize discovery, analyze marketing, and execute perfect launches.
Featured Apps
5 Available
Game Build Size Optimizer
Game Build Optimization
Make your HTML5, Unity WebGL or Godot build smaller. See what takes up space, remove junk files and recompress, free and right in your browser.
Sprite Slicer
Game Dev Utility
Easily split and extract individual frames from your 2D game spritesheets directly in your browser. Sprite sheet to animation viewer tool. No server required.
Sprite Sheet Maker & Packer
Game Dev Utility
Create a sprite sheet from PNG, JPG, or WebP frames. Reorder images, adjust grid spacing and padding, then download PNG and JSON files free in your browser.
Playable Build Doctor
Game Build Testing
Check a browser game build for missing files, broken paths, mobile setup issues, oversized assets, and common HTML5 hosting failures before publishing.
Game Loading-Time Analyzer
Game Performance Testing
Measure browser game response, render, canvas, animation, resource, and first-interaction timing with a temporary build that is deleted after one hour.