Java Fast

Open-source Java projects categorized as Fast
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Top 11 Java Fast Projects

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  1. Bazel

    a fast, scalable, multi-language and extensible build system

    Project mention: Designing for Scale: Repository Structures that Boost Software Development Productivity | dev.to | 2026-05-20

    The solution isn't always a knee-jerk switch to a polyrepo. As radwanalmsora highlighted in the discussion, more often it's about investing in robust tooling for your monorepo. Tools like Bazel, Nx, or Turborepo can build graphs to understand dependencies, ensuring CI only runs affected targets. Combined with CODEOWNERS files, these tools enable even massive monorepos (think Google or Meta scale) to function efficiently. The takeaway for technical leadership: invest in smart tooling early to maintain high software development productivity, rather than letting a lack of structure dictate your repository strategy.

  2. SaaSHub

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  3. AndroidNetworking

    🚀 A Complete Fast Android Networking Library that also supports HTTP/2 🚀

  4. okdownload

    A Reliable, Flexible, Fast and Powerful download engine.

  5. OrientDB

    OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries.

  6. fory

    A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.

    Project mention: Extend Protobuf/FlatBuffers Schema IDL with Shared/Circular Reference Support | news.ycombinator.com | 2026-03-11

    If you already have .proto or .fbs schemas and you want shared/circular reference support, with the Fory compiler you can keep those schemas, add a small set of Fory options, then foryc generates idiomatic native models across Fory-supported languages

    With fory first-class object graph serialziation support, you can serialize object graphs without manual *_id link reconstruction or rewriting your entire schema into Fory Schema.

    1. GitHub: https://github.com/apache/fory

    2. Compiler docs: https://fory.apache.org/docs/compiler

  7. Light-Java

    A fast, lightweight and more productive microservices framework

  8. ReplicaDB

    ReplicaDB is open source tool for database replication, designed for efficiently transferring bulk data between relational and non-relational databases

  9. dominion-ecs-java

    Insanely fast ECS (Entity Component System) for Java

  10. jmail

    A modern and lightweight library for working with email addresses in Java

  11. fast-printf

    A precompiled printf spec compatible string formatting library for java (by YuyuZha0)

    Project mention: Show HN: FastPrintf – A zero-garbage, glibc-compliant Java formatter using Ropes | news.ycombinator.com | 2026-01-21

  12. Ziphra Messenger Client

    Ziphra Messenger Client Ziphra Client allows users to register, log in, send and receive encrypted messages, attach media, receive push notifications, customize themes, and maintain secure conversations ziphra-client: Android front-end of the application. Handles user interaction, message display, and secure communication with the backend.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Fast projects in Java? This list will help you:

# Project Stars
1 Bazel 25,509
2 AndroidNetworking 5,905
3 okdownload 5,254
4 OrientDB 4,966
5 fory 4,407
6 Light-Java 3,673
7 ReplicaDB 487
8 dominion-ecs-java 393
9 jmail 188
10 fast-printf 4
11 Ziphra Messenger Client 0

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