Texture Packer Alternative
Need a free alternative to TexturePacker? Pack sprites with MaxRects, trim transparent edges, detect duplicates, and export for Unity, Godot, Phaser — all in the browser.

TexturePacker is the long-standing desktop standard for sprite packing, and it's good software — but it's paid, licensed per seat, and requires an install, which is friction for game jams, classrooms, quick one-off packs, and contributors who just need to rebuild an atlas once. I Love Sprites covers the core packing workflow in the browser for free: MaxRects packing (the same family of algorithm TexturePacker uses), transparent trimming, edge extrusion, duplicate detection with aliases, power-of-two sizing, multi-resolution export, and metadata for Unity, Godot, Phaser, PixiJS, Spine, Starling XML, CSS, and generic JSON.

An honest comparison: TexturePacker still does some things this tool doesn't — polygon (non-rectangular) trimming for maximum density, a command-line interface for build-pipeline integration, and niche engine formats accumulated over a decade. If your pipeline depends on those, TexturePacker remains worth its license. If what you need is tight rectangular packing with correct metadata for a mainstream engine, the output here is functionally equivalent — and because everything runs client-side, your art never touches a server.

Migration is straightforward: the concepts (trim, extrude, padding, max size, POT) map one-to-one, and frame names in the exported metadata come from your source file names, so existing animation code keyed on frame names keeps working after a re-pack.