google/guava

Health v2 · maintenance only

Adoption not part of the score

51891 stars · 11194 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Guava is Google's set of core Java libraries providing new collection types (multimap, multiset, immutable collections), a graph library, and utilities for concurrency, I/O, hashing, primitives, strings, caching, and math. It ships in JRE and Android flavors and is widely used across Google and the broader Java ecosystem.

Use cases

• use immutable collections in java
• multimap and multiset data structures for java
• java concurrency utilities like listenablefuture
• graph data structure library for jvm
• string and hashing helper utilities in java
• in-memory caching in java
• common utility library to replace boilerplate in java projects

When to choose

• you want battle-tested, widely adopted core utilities for any Java 8+ project
• you need collection types beyond the JDK such as multimaps, multisets, or immutable collections
• you are building an Android app and want the Android-compatible flavor

When to avoid

• you only need a modern high-performance cache - prefer Caffeine, which Guava itself recommends
• you want event-driven pub-sub - Guava's EventBus is discouraged in favor of dependency injection and concurrency frameworks
• your project is minimal and you want to avoid a large dependency for a few utilities

Facets

library · maturity stable

caching concurrency serialization math developer-tools developer-tools cross-platform jvm cross-platform collections immutable-collections graph-library google core-libraries utilities hashing io-utilities algorithms android

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