New Java Data Structures 2026

last commit 5 days ago eclipse-collections/eclipse-collections 2K -4

added 5 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 5 months ago bluuewhale/hash-smith 76

added 5 months ago

Fast & memory efficient hash tables for Java

Java Data Structures

last commit 1 year ago int4-org/common 22

added 1 year ago

Commonly usable Java classes without dependencies.

Java Data Structures Utilities

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

added 1 year 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 2 months ago carrotsearch/hppc 1K +1

added 1 year ago

High Performance Primitive Collections for Java

Java Data Structures

last commit 11 months ago hrldcpr/pcollections 784

added 1 year ago

PCollections provices persistent, immutable collections for Java.

Java Data Structures

last commit 1 year ago amitshekhariitbhu/glidebitmappool 601

added 1 year ago

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

Java Data Structures Android Data Structures

last commit 1 year 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 -1

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 months ago dflib/dflib 320 +2

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 9 months ago amaembo/streamex 2K +1

added 1 year ago

Enhancing the Java Stream API.

Java Data Structures

last commit 1 day ago pivovarit/parallel-collectors 676 +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 1 year ago lmax-exchange/disruptor 18K +18

added 1 year ago

High Performance Inter-Thread Messaging Library.

Java Data Structures Messaging Libraries