High-performance JSON forKBVEYYJson
An Unreal Engine 5 plugin wrapping yyjson 0.12.0, a high-performance C JSON library. It gives KBVE Unreal projects low-overhead JSON parsing and serialization through a single runtime module, replacing the slower built-in engine JSON utilities for high-volume payloads.
Opt-in, one JSON provider
A single KBVEYYJson runtime module in the default phase. Third-party category, not enabled by default, so projects pull it in only where fast JSON matters.
- Upstream — yyjson, MIT licensed.
- Fit — ROWS backend payloads, codegen databases.
What it gives you
Features
yyjson-backed
Wraps the yyjson 0.12.0 C library for fast JSON parsing and serialization.
Runtime module
A single KBVEYYJson runtime module loaded in the default phase.
Cross-platform
Builds on Win64, Linux, and Mac under UE 5.4+.
Opt-in
Third-party category, not enabled by default, so projects pull it in only where fast JSON matters.
Questions
Frequently asked
What is KBVEYYJson?
KBVEYYJson is an Unreal Engine 5 plugin that wraps yyjson 0.12.0, a high-performance C JSON library, so Unreal projects can parse and serialize JSON far faster than the engine's built-in JSON utilities.
Why use yyjson instead of Unreal's built-in JSON?
yyjson is one of the fastest C JSON libraries available. Wrapping it as a runtime module gives KBVE Unreal projects low-overhead JSON parsing and serialization, which matters for high-volume data such as ROWS backend payloads and codegen databases.
Which platforms and engine versions does KBVEYYJson support?
KBVEYYJson targets Unreal Engine 5.4 and later on Win64, Linux, and Mac. It is a third-party runtime module and is not enabled by default.