Awesome Scala

Cassovary is a simple big graph processing library for the JVM

Data structures for pure functional programming in Scala

Graph for Scala is intended to provide basic graph functionality seamlessly fitting into the Scala Collection Library. Like the well known members of scala.collection, Graph for Scala is an in-memory graph library aiming at editing and traversing graphs, finding cycles etc. in a user-friendly way.

Fast, deboxed, specialized data structures for Scala

makes some Scala 2.13 APIs (primarily collections, also some others) available on 2.11 and 2.12, to aid cross-building

Parallel collections standard library module for Scala 2.13+

Large off-heap arrays and mmap files for Scala and Java

Beautiful trees, without the landscaping.

community-contributed additions to the Scala 2.13 collections

Metal - fast unboxed data structures for Scala

Array-based immutable collections for scala

Scala library for memory-efficient data structures