Using a roblox lz4 decompress script for your project

If you've spent any time poking around under the hood of Roblox files or trying to handle complex data transfers, you've probably realized that finding a solid roblox lz4 decompress script is basically a rite of passage. It usually starts when you're trying to read a place file, an model, or maybe even data coming back from a specific API, and instead of seeing clean JSON or readable XML, you get a wall of unreadable binary junk. That's LZ4 compression for you. It's super efficient for the engine, but it's a bit of a headache for us developers when we need to see what's actually happening inside those bytes. ...

February 10, 2026 · 7 min · Krishna Spence