Sprite Fusion

Sprite Fusion is a free, browser-based tilemap editor for indie game developers, hobbyists, and educators who need a fast way to design 2D levels without installing software.

Key features include:

• Tileset import via drag-and-drop or clipboard paste, plus single and multi-tile selection for faster drawing
• Auto-tiling for terrain creation, along with bucket fill, smart fill, and tile randomization tools
• Multi-layer maps with collision layers, and custom tile attributes stored as JSON data
• One-click exports to Unity Tilemap, Godot TileMap Scene, Defold, GB Studio, GDevelop, and standard formats like PNG, JSON, TMX, and UVTT (for Foundry VTT, Roll20, and other virtual tabletops)

Pricing: Free web edition (personal and commercial use, no login required; map export limit of 4.5MB). A paid desktop edition is available for $14.99 (one-time purchase) for macOS and Windows.

What makes it notable is its no-account, in-browser workflow paired with native engine export formats and a community library of example tilemaps, which reduces setup time compared with general-purpose level editors.