New Java Data Structures 2026

last commit 14 hours ago eclipse-collections/eclipse-collections 2K +1

added 3 months ago

Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

Java Data Structures

last commit 3 months ago bluuewhale/hash-smith 76

added 3 months ago

Fast & memory efficient hash tables for Java

Java Data Structures

last commit 9 months ago int4-org/common 22

added 9 months ago

Commonly usable Java classes without dependencies.

Java Data Structures Utilities

last commit 5 days ago jctools/jctools 3K +4

added 12 months ago

Java Concurrency Tools for the JVM. This project aims to offer some concurrent data structures currently missing from the JDK.

Java Data Structures Concurrency Libraries

last commit 1 week ago carrotsearch/hppc 1K +2

added 12 months ago

High Performance Primitive Collections for Java

Java Data Structures

last commit 8 months ago hrldcpr/pcollections 783

added 12 months ago

PCollections provices persistent, immutable collections for Java.

Java Data Structures

last commit 1 year ago amitshekhariitbhu/glidebitmappool 599

added 12 months ago

Glide Bitmap Pool is a memory management library for reusing the bitmap memory

Java Data Structures Android Data Structures

last commit 12 months ago spotify/voyager 1K +7

added 1 year ago

An approximate nearest-neighbor search library for Python and Java with a focus on ease of use, simplicity, and deployability.

Python Data Structures Search Libraries Java Data Structures Search Libraries

last commit 3 years ago jankotek/mapdb 5K -3

added 1 year ago

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

Java Data Structures Databases Kotlin Data Structures Databases

last commit 2 weeks ago dflib/dflib 312

added 1 year ago

A lightweight pure Java implementation of a common DataFrame data structure.

Java Data Structures Data Science Libraries DataFrame Libraries

last commit 6 months ago amaembo/streamex 2K +2

added 1 year ago

Enhancing the Java Stream API.

Java Data Structures

last commit 1 day ago pivovarit/parallel-collectors 672 +1

added 1 year ago

Parallel Collectors is a toolkit easing parallel collection processing in Java using Stream API.

Java Data Structures

last commit 1 year ago jhalterman/expiringmap 1K

added 1 year ago

A high performance thread-safe map that expires entries.

Java Data Structures

last commit 11 months ago lmax-exchange/disruptor 18K +16

added 1 year ago

High Performance Inter-Thread Messaging Library.

Java Data Structures Messaging Libraries