What is a .TMJ file?
TMJ is the JSON form of a Tiled tile map. Created by the Tiled map editor.
- Did you know
- The JSON form is popular with web and engine integrations because most languages can parse it without a dedicated TMX library.
- Tiled was created and is maintained by Thorbjørn Lindeijer as a free, general-purpose level editor.
- Tiled stores a map as either XML (.tmx) or JSON (.tmj), listing which tile sits in each grid cell plus any object layers for spawns and triggers.
- What Analyser reads
- Inspect game ROMs, patches and engine assets: iNES/NES2.0, Game Boy/Color/Advance, SNES, Nintendo DS/DSi, Nintendo 64, and Sega Genesis ROM headers (title, mapper, region, checksum); IPS/BPS/UPS/PPF patches; Doom WAD lumps; Minecraft NBT/schematics and Bedrock bundles; Aseprite sprites; Godot .pck; Quake/id Tech PAK/PK3; Source BSP/VPK/VTF/VMT; KTX/KTX2 textures; Tiled maps; LÖVE games; PICO-8 carts - plus MPQ, 3DS/Switch and Ren’Py/RPG Maker identification.
- Depth of analysis
- .TMJ is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .TMJ file
- Drag a .TMJ file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.