protostuff/protostuff

Health v2 · maintenance only

Adoption not part of the score

2096 stars · 303 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Protostuff is a Java serialization library with built-in forward-backward compatibility (schema evolution) and validation, supporting pluggable formats like protobuf, JSON, and graph. It includes a proto compiler and code generator, and can serialize POJOs without pre-written schemas via runtime schema generation.

Use cases

• serialize java objects to protobuf format
• replace java serialization with a faster binary format
• schema evolution for stored data with forward-backward compatibility
• efficient messaging format for rpc
• compact storage format for datastore or cache
• generate protobuf schemas from pojos at runtime
• convert objects to and from json

When to choose

• you need efficient, memory-friendly binary serialization on the JVM
• you want protobuf compatibility without writing .proto files for existing POJOs
• your data schema evolves over time and you need compatibility across versions
• you need a fast messaging or cache storage format in Java

When to avoid

• you need cross-language serialization with first-class support beyond the JVM
• your project is not on Java 1.6+ or the JVM ecosystem
• you need human-readable serialization as the primary format

Facets

library · maturity active

serialization parser json developer-tools backend apis jvm cross-platform protobuf schema-evolution code-generation rpc datastore

Member repositories

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