Tileset Editor
Turn pixel art into a game-ready tileset. Group tiles on an infinite board, auto-generate Wang 16 / blob 47 terrain borders from a single base tile, then export a packed PNG + JSON or paint worlds straight away. Free, runs in your browser.
Build auto-tile terrains without drawing 47 tiles
The Tileset Editor curates pixel art into tilesets. Add tiles from your own drawings or any public art in the gallery, set a base cell size, and arrange groups for terrain, props and characters. Add a terrain and drop one base tile on it — Build Borders composes every edge, corner and inner-corner variant for you, as a Wang 16 set for top-down maps or a blob 47 set for platformers.
Terrains are data-driven: declare which terrains connect, give them a priority, and boundaries resolve themselves — seamless merges, layered transitions, or hard edges. Random groups pick weighted variants while you paint, so large areas never look repetitive. When it's ready, download the packed PNG sheet + JSON for Godot, Unity or Phaser — or open the tilemap editor and paint worlds with terrain-aware brushes.
Frequently asked questions
Tap a question to expandDo I have to draw all the border tiles myself?
No. Build Borders generates all 16 (or 47) variants from one base tile — auto-shaded, or composed from your own edge and corner art with per-side overrides and variations. Edit the base art later and the whole set regenerates.
Wang 16 or blob 47 — which should I pick?
Wang 16 tracks the four edges and puts borders mid-tile — great for top-down maps. Blob 47 also tracks corners for the 47 canonical shapes, so concave joins look right — the usual choice for platformers. You can switch a terrain between the two at any time.
How do two terrains blend into each other?
Give a terrain an Under art in Build Borders to bake the transition, then set relations: connected terrains at equal priority merge seamlessly, a higher-priority terrain draws its transition edge over the lower one, and unrelated terrains keep a hard boundary.
Can I use the tileset in my game engine?
Yes. Download a packed PNG sheet plus a JSON file with tiles, groups and terrain masks — per group or for the whole set — and import it into Godot, Unity, Phaser or your own engine.
Do I need an account?
You can open the editor and build right away. Sign in when you want to save the tileset to your account, sync generated tiles, or paint worlds with it in the tilemap editor.