Every class, offset and function of a game build, in one searchable place.
Zdex is a public index of game reflection dumps, Unreal Engine and Unity IL2CPP alike. Pick a game, pick a build, and browse its full type system — members with real offsets, enums with values, functions with parameters — or diff two builds to see what moved.
Made for Zircon dumps (zircon dump --publish), open to any dumper that writes the Zdex format. Zdex never touches a game itself.
Recently indexed
All gamesZircon makes the dumps. Zdex keeps them.
Zircon reads a running game — Unreal Engine 4.22 through 5.7, or Unity IL2CPP — and writes one lossless JSON of the whole type system: every class, struct, enum and function with offsets, flags and defaults. It is free, open source, has a CLI and a GUI, and publishes here with a single command. It is the tool this site is built around, and the reason the data here is this complete.
zircon dump --pid 12345 -o game.json --publish
engine UE 5.6 (confidence 0.6)
types 12,891 functions 16,578
publish https://zlogic.eu/zdex/d/3 readyPublishing a dump takes three steps
Dump the running game
Zircon reads the engine's reflection data from a live process and writes one JSON file with the whole type system; add --publish and it lands here on its own. Any other dumper that writes the Zdex format works the same way.
zircon dump --pid 12345 -o game.jsonUpload it, here or from the terminal
Sign in, pick or create the game, name the build — or stay where you are and let zircon publish do it. Either way it uploads in chunks and resumes if the connection drops; plain, gzip or zip is fine.
zircon publish game.jsonIt gets indexed and reviewed
The importer builds a search index, resolves every cross-reference, and the dump goes public once approved.
5,216 classes · 48,535 members · ready