What is a .Spine file?
A Spine file holds a 2D skeletal animation. Created by Esoteric Software’s Spine.
- Did you know
- Esoteric Software ships official Spine runtimes for Unity, Unreal, Godot, Phaser and many other engines, so the same export plays everywhere.
- Projects export to JSON or compact binary data that Spine’s runtimes load across many game engines.
- Spine animates a character by posing a skeleton of bones over its artwork, so a few images can produce smooth motion at a fraction of the size of frame-by-frame sprites.
- What Analyser reads
- Identify and read more game and emulator files: Unity asset bundles, Unreal cooked assets, CISO/CHD disc images, FMOD/Wwise sound banks, Spine skeletons and atlases, GameMaker/LDtk/TIC-80 projects, Minecraft Anvil regions, Warcraft III maps, Ren Py and RPG Maker data, extra console ROMs (Atari, PC Engine, Master System/Game Gear, WonderSwan, 3DS homebrew), xdelta/Basis patches and emulator saves and movies.
- Depth of analysis
- .Spine 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 .Spine file
- Drag a .Spine 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.