LangChain4j Frameworks LLM Tools

Java-based LangChain implementations and frameworks for building LLM applications with Spring Boot, Quarkus, and related Java ecosystems. Does NOT include non-Java LangChain ports, general LLM SDKs, or language-agnostic frameworks.

There are 24 langchain4j frameworks tools tracked. 1 score above 50 (established tier). The highest-rated is quarkiverse/quarkus-langchain4j at 57/100 with 280 stars.

Get all 24 projects as JSON

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# Tool Score Tier
1 quarkiverse/quarkus-langchain4j

Quarkus Langchain4j extension

57
Established
2 HamaWhiteGG/langchain-java

Java version of LangChain, while empowering LLM for Big Data.

49
Emerging
3 hkh1012/langboot

Using Langchain's ideas to build SpringBoot AI applications | ...

47
Emerging
4 tryAGI/LangChain.Providers

Part of the LangChain.NET project. Has separate abstractions, does not...

46
Emerging
5 showpune/spring-petclinic-langchain4j

It is a langchain4j LLM demo of petclinic

41
Emerging
6 b6k-dev/quarkus-skill

Quarkus platform reference docs and installable skill for AI coding...

36
Emerging
7 quarkiverse/quarkus-rage4j

Rage4j is a java library thats helps evaluate LLM's based on scientifically...

35
Emerging
8 LangStream/langstream

LangStream. Event-Driven Developer Platform for Building and Running LLM AI...

34
Emerging
9 cupybara/java-langchains

A Java 8+ LangChain implementation. Build powerful LLM based applications in...

33
Emerging
10 cescoffier/quarkus-llm-workshop

Quarkus LLM workshop

33
Emerging
11 cescoffier/quarkus-langchain4j-workshop

Learn how to build AI-infused applications with Quarkus

31
Emerging
12 ThomasVitale/llm-apps-java-langchain4j

Samples showing how to build Java applications powered by Generative AI and...

31
Emerging
13 lreimer/k8s-native-java-ai

Demos for Java-based AI on Kubernetes from Development to Deployment

30
Emerging
14 heiko-braun/cai

The Camel Quickstart Assistant helps you build Camel applications using a...

27
Experimental
15 nirodg/hyper-api

A Quarkus extension for instant, zero-boilerplate, secured CRUD APIs

26
Experimental
16 shenyubao/javachain

JavaChain 用于快速搭建LLM应用,参考了 LangChain 的架构设计,基于Java8实现。

25
Experimental
17 tryAGI/LangChain.Maui

MAUI provider and sample application that provides various scenarios for...

23
Experimental
18 langchain4j/langchain-java

Java implementation for LangChain

23
Experimental
19 JohannesRabauer/langchain4j-spring-jpa-memory

Demo to show how to use memory storage with LangChain4J and Spring Data

19
Experimental
20 achalise/langchain-playground

Exploring different LangChain components to build AI powered applications

14
Experimental
21 fejesa/quarkus-ai-mcp

AI powered HTML Message Template Editor

12
Experimental
22 stoerr/webwatch

webwatch: watching a couple of pages and send detected changes via email,...

11
Experimental
23 pamaldi/adso

Some experiment on LLM Agents

11
Experimental
24 Groupe-Key-Consulting/any-chatbot

Experimenting with Langchain4J and Quarkus

10
Experimental