elastic / elasticsearch
Free and Open Source, Distributed, RESTful Search Engine
elastic / elasticsearch
apache / dubbo
The java implementation of Apache Dubbo. An RPC and microservice framework.
xuxueli / xxl-job
A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）
OpenAPITools / openapi-generator
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
prestodb / presto
The official home of the Presto distributed SQL query engine for big data
opensearch-project / OpenSearch
🔎 Open source distributed and RESTful search engine.
trinodb / trino
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
dropwizard / dropwizard
A damn simple library for building production-ready RESTful web services.
traccar / traccar
Open source GPS tracking platform - self-hosted or managed, 200+ device protocols
swagger-api / swagger-core
Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API
wiremock / wiremock
A tool for mocking HTTP services
rest-assured / rest-assured
Java DSL for easy testing of REST services
haifengl / smile
Statistical Machine Intelligence & Learning Engine
apache / camel
Apache Camel is an open source integration framework with 350+ connectors. Write routes in Java, YAML, or XML. Run on Spring Boot, Quarkus, or standalone. Apache License 2.0.
btraceio / btrace
Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.
discord-jda / JDA
Java wrapper for the popular chat & VOIP service: Discord https://discord.com
sofastack / sofa-rpc
SOFARPC is a high-performance, high-extensibility, production-level Java RPC framework.
apache / linkis
Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.
apache / hugegraph
A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends)
opensolon / solon
🔥 Java enterprise application development framework for full scenario: Restrained, Efficient, Open, Ecologicalll!!! 700% higher concurrency 50% memory savings Startup is 10 times faster. Packing 90% smaller; Compatible with java8 ~ java26; Supports LTS. (Replaceable spring)
Kong / unirest-java
Unirest in Java: Simplified, lightweight HTTP client library.
firebase / firebase-android-sdk
Firebase Android SDK
LSPosed / AndroidHiddenApiBypass
LSPass: Bypass restrictions on non-SDK interfaces
confluentinc / schema-registry
Confluent Schema Registry for Kafka
JakeWharton / ProcessPhoenix
Process Phoenix facilitates restarting your application process.
jonashackt / spring-boot-vuejs
Example project showing how to build a Spring Boot App providing a GUI with Vue.js
Discord4J / Discord4J
Discord4J is a fast, powerful, unopinionated, reactive library to enable quick and easy development of Discord bots for Java, Kotlin, and other JVM languages using the official Discord Bot API.
pinterest / teletraan
Teletraan is Pinterest's deploy system.
aklivity / zilla
🦎 A lightweight, multi-protocol gateway for event-driven applications and AI agents. Expose and govern Kafka, MQTT, APIs, and MCP through one high-performance engine with shared routing, security, schema, and observability.
aws / serverless-java-container
A Java wrapper to run Spring, Spring Boot, Jersey, and other apps inside AWS Lambda.
Endava / cats
CATS is a REST API Fuzzer and negative testing tool for OpenAPI endpoints. CATS automatically generates, runs and reports tests with minimum configuration and no coding effort. Tests are self-healing and do not require maintenance.
vojtechhabarta / typescript-generator
Generates TypeScript from Java - JSON declarations, REST service client
spring-projects / spring-restdocs
Test-driven documentation for RESTful services
gitlab4j / gitlab4j-api
GitLab4J API (gitlab4j-api) provides a full featured Java client library for working with GitLab repositories via the GitLab REST API
resteasy / resteasy
An Implementation of the Jakarta RESTful Web Services Specification
codelibs / fess
Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.
DSpace / DSpace
(Official) The DSpace digital asset management system that powers your Institutional Repository
spring-projects / spring-hateoas
Spring HATEOAS - Library to support implementing representations for hyper-text driven REST web services.
googlesamples / android-testdpc
Test DPC is a sample device policy controller for use with Android Enterprise. It gives developers the ability to see how their app will behave in a managed context such as device owner or within a managed profile. Users can set up a work profile, enable work apps, set applications restrictions, manage security polices, and much more. The app also serves as a implementation reference for other DPCs
devlive-community / metaforge
DataCap is integrated software for data transformation, integration, and visualization. Support a variety of data sources, file types, big data related database, relational database, NoSQL database, etc. Through the software can realize the management of multiple data sources, the data under the source of various operations conversion ...
wso2 / product-apim
Welcome to the WSO2 API Manager source code! For info on working with the WSO2 API Manager repository and contributing code, click the link below.
yahoo / elide
Elide is a Java library that lets you stand up a GraphQL/JSON-API web service with minimal effort.
authorjapps / zerocode
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.
zycgit / hasor-old
Hasor是一套基于 Java 语言的开发框架，区别于其它框架的是 Hasor 有着自己一套完整的体系，同时还可以和先有技术体系做到完美融合。它包含：IoC/Aop容器框架、Web框架、Jdbc框架、RSF分布式RPC框架、DataQL引擎，等几块。
vaadin / hilla
Build better business applications, faster. No more juggling REST endpoints or deciphering GraphQL queries. Hilla seamlessly connects Spring Boot and React to accelerate application development.
spring-projects / spring-data-rest
Simplifies building hypermedia-driven REST web services on top of Spring Data repositories
lucee / Lucee
Lucee is a high-performance, open-source CFML server written in Java. Supporting JDBC, Caching, Parallelism, HTTP, ORM, REST, S3 and dynamic Java integration, Lucee is great for developers aiming to build fast, scalable applications, delivering faster startup, rapid compilation and better runtime performance.
apache / causeway
Use Apache Causeway™ to rapidly develop domain-driven apps or modular monoliths in Java, on top of the Spring Boot platform. Write your business logic in entities, domain services or view models, and the framework dynamically generates a representation of that domain model as a webapp, GraphQL or RESTful API. For prototyping or production.
SoftInstigate / restheart
A backend for web, mobile, AI and IoT apps. Built on MongoDB
stargate / stargate
An open source data gateway
robo-code / robocode
Build the best - destroy the rest!
SkinsRestorer / SkinsRestorer
🎨 The most popular skin plugin for Minecraft
in28minutes / jpa-with-hibernate
Master JPA using Hibernate as the implementation. Learn the basics of JPA - entities, relationships, entity manager, annotations, JPQL and Criteria API. Take a step into the advanced world of JPA - caching, performance tuning(n + 1 queries), mapping inheritance hierarchies. Get a peek into the magic of Spring Data JPA & Spring Data Rest.
restlet / restlet-framework-java
The first REST API framework for Java
membrane / api-gateway
API Gateway bridging modern and legacy APIs with WSDL-to-OpenAPI, SOAP-to-REST, XML, OAuth2, and GraphQL.
airlift / airlift
Airlift framework for building REST services
Hakky54 / mutual-tls-ssl
🔐 Tutorial of setting up Security for your API with one way authentication with TLS/SSL and mutual authentication for a java based web server and a client with both Spring Boot. Different clients are provided such as Apache HttpClient, OkHttp, Spring RestTemplate, Spring WebFlux WebClient Jetty and Netty, the old and the new JDK HttpClient, the old and the new Jersey Client, Google HttpClient, Unirest, Retrofit, Feign, Methanol, vertx, Scala client Finagle, Featherbed, Dispatch Reboot, AsyncHttpClient, Sttp, Akka, Requests Scala, Http4s Blaze, Kotlin client Fuel, http4k, Kohttp and ktor. Also other server examples are available such as jersey with grizzly. Also gRPC, WebSocket and ElasticSearch examples are included
spring-petclinic / spring-petclinic-rest
REST version of the Spring Petclinic sample application
OtterMind / Nubase
🔥🔥🔥 Turn AI-written code into real apps. Nubase is an open-source, AI-native backend platform for AI Coding, agentic applications, and modern product teams: Memory, Database, Storage, and Auth in one self-hostable service.
AllTick-Official / alltick-realtime-forex-crypto-stock-tick-finance-websocket-api
AllTick real-time financial market data API with REST and WebSocket access to stocks, forex, crypto, commodities, and indices.