JParse is a high-performance, lightweight JSON parser designed for the Java Virtual Machine (JVM). Developed by NATS, it emphasizes speed, compliance, and minimalism, making it an ideal choice for developers working with large-scale data processing or microservices architectures.
More:https://jparse.com/

One of JParse's standout features is its use of an index overlay mechanism. This approach allows the parser to access and analyze data in real-time as it is being parsed, rather than waiting for the entire document to be parsed first. This results in faster parsing speeds and reduced memory usage, especially beneficial when dealing with large or complex JSON documents.