Tile Map Editor — Build Game Levels in Your Browser

Turn your sprites into a paintable tile palette and draw levels directly in the browser: brush and eraser with adjustable size, four-way flood fill, right-click erase, and multiple layers with per-layer opacity, visibility, and locking. Tiles come from your sprite session — split a tileset in Sprite Detection, upload tile images directly, or draw your own tiles.

Maps save to your browser and reload any time; finished levels export as JSON (with a Tiled-shaped variant) for use in your engine. Full walkthrough: How to Build Tile Maps in Your Browser.