PrePack - Visual Buffer Serializer & Binary Struct Editor
PrePack is a free and open-source Roblox plugin for designing high-performance binary serialization layouts through an intuitive visual editor.
Build custom binary structures without manually writing buffer code, then generate optimized serialization pipelines for your projects.
Built by @Yarik_superpro, PrePack focuses on maximum optimization, zero unnecessary overhead, and complete control over binary layouts.
Perfect for save systems, networking, procedural generation, replay systems, ECS architectures, and any project requiring fast, compact serialization.
Downloads
Roblox Marketplace
https://create.roblox.com/store/asset/121886166097883/PrePack
GitHub (Source Code)
Features
Visual binary struct editor- Dictionary → Buffer serialization pipelines
Binary + JSON save sharing
Compact binary layouts
Fast serialization & deserialization
Fully customizable binary structures
Intuitive drag-and-edit workflow
Optional UI sound effects
Designed for large save systems
Completely free & open-source
Why PrePack?
Unlike traditional serializers, PrePack focuses on static organization instead of runtime complexity.
The plugin itself follows the same philosophy.
Built as a single hyper-optimized script, PrePack minimizes initialization time, reduces plugin overhead, and avoids unnecessary runtime complexity while remaining highly customizable.
Instead of repeatedly interpreting schemas at runtime, PrePack allows you to visually design efficient binary layouts that are simple to manage and built for performance.
Designed around:
- Maximum organization
- Maximum optimization
- Maximum customizability
- Maximum synergy
- Minimal runtime overhead
Great For
- Save systems
- Inventory systems
- Player data
- Networking
- Replay systems
- Procedural worlds
- Large persistent datasets
- Custom binary formats
Screenshots
Philosophy
PrePack follows one simple principle:
If the runtime doesn’t need to do something, it shouldn’t be doing it.
The goal isn’t just fast serialization—it’s making serialization predictable, organized, and easy to work with while keeping runtime overhead to a minimum.
Donations