twitter/util

Health v2 · maintenance only

Adoption not part of the score

2719 stars · 571 forks observed · 2026-08-28

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

Twitter Util is a collection of small, idiomatic, general-purpose JVM libraries written in Scala, including concurrency primitives (a non-actor Future implementation), caching, I/O, stats, and time/duration conversions. It is used in production at Twitter and underpins Finagle.

Use cases

• use composable futures in Scala without actors
• convert time durations and storage units idiomatically in Scala
• add caching and stats utilities to a JVM service
• build reliable async JVM applications with Twitter's production-tested primitives
• support Finagle-based RPC services with core utilities

When to choose

• you are building Scala/JVM services, especially with Finagle
• you want battle-tested, production-proven concurrency and utility libraries
• you need fine-grained control over futures, timers, and I/O on the JVM

When to avoid

• you want a lightweight standard-library-only approach without extra dependencies
• your project uses newer Scala ecosystem stacks like ZIO or Cats Effect with no Finagle ties
• you need cross-language (non-JVM) utilities

Facets

library · maturity stable

concurrency caching developer-tools serialization logging developer-tools backend microservices jvm scala futures finagle jvm-utilities time-units

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markdown · JSON · MCP: product_card(name="twitter/util")