rTexPacker

A simple and easy-to-use textures packer and font atlas generator

Sprite Hax

Gain unparalleled control over your messy spritesheets

GAP : Generic Atlas Packer

gap

Atlas Tile Wrapper

Shader that wraps tiles in Atlas texture (Blender and Godot)

TextureAtlasComposer

Utility for creating and editing texture atlases

Texture Packer

Pack several images into a spritesheet within your browser and download the spritesheet and JSON data file.

Sprite Sheet Buddy

A tool to create sprite atlases for game frameworks.

Sprite Atlas for GameMaker

Combine sprites into single atlases!

TEX2ATL

Pack loose textures into optimized atlases with engine-ready metadata.

Godot Item Icon Atlas Builder – Export Ready-To-Use Inventory Atlases

Atlasian

A simpler solution to making sprite sheets

GlyphForge Bitmap Font Studio

Create bitmap font atlases with PNG, JSON, CSS, and BMFont XML export.

PanzaScope: AI-Ready Code Architecture Toolkit

Sprat: beyond sprite packing

Beyond sprite packing. Reel your sprites together.

Atlas Phase: Living Sprite Atlas Editor

Editable sprite atlases for games: pack, freeze, replace, and export without breaking your references.

DreamAtlas

Flexible, balanced, artistic map generation for Dominions 6

Sprite Sheet Studio — Slice & Pack Sprite Sheets in Your Browser

Slice sprite sheets into frames or pack sprites into one sheet + atlas JSON. Browser-based, offline, Mac & Win.