apache / kafka

Distributed event streaming platform for building high-throughput data pipelines and streaming applications.

elastic / elasticsearch

Free and open source distributed RESTful search and analytics engine built on Apache Lucene.

dataease / dataease

🔥 人人可用的开源 BI 工具，数据可视化神器。An open-source BI tool alternative to Tableau.

apache / jmeter

Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services

questdb / questdb

QuestDB is a high performance, open-source, time-series database

apache / doris

Apache Doris is a real-time analytics and hybrid search database for AI agents.

debezium / debezium

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

apache / cassandra

Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.

apache / fesod

Fast. Easy. Done. Processing spreadsheets without worrying about large files causing OOM.

apache / maven

Apache Maven core

apache / lucene

Apache Lucene open-source search software

dromara / MaxKey

Dromara MaxKey 🗝️ SSO ,Leading-Edge IAM-IDaas(Identity and Access Management) Product , Under Apache-2.0 is free ，业界领先的IAM-IDaas身份管理和认证产品，遵循Apache-2.0开源免费，支持OAuth2.x、OpenID Connect、SAML2.0、CAS、JWT、SCIM等SSO标准协议，基于RBAC统一权限控制，实现用户生命周期管理，开源、安全、合规、自主可控。

apache / ozone

Scalable, reliable, distributed storage system optimized for data analytics and object store workloads.

apache / cloudstack

Apache CloudStack is an opensource Infrastructure as a Service (IaaS) cloud computing platform

apache / flink

Apache Flink

apache / skywalking

APM, Application Performance Monitoring System

apache / rocketmq

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

apache / shardingsphere

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

apache / druid

Apache Druid: a high performance real-time analytics database.

opensearch-project / OpenSearch

🔎 Open source distributed and RESTful search engine.

apache / zookeeper

Apache ZooKeeper

apache / shenyu

Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.

apache / hertzbeat

An AI-powered next-generation open source real-time observability system.

apache / incubator-kie

Apache KIE (Knowledge Is Everything) is the home of Drools, OptaPlanner, jBPM, and Kogito.

apache / pinot

Apache Pinot - A realtime distributed OLAP datastore

apache / hbase

Apache HBase

apache / calcite

Apache Calcite

apache / streampark

The Open Control Plane for Real-Time Data

apache / tika

The Apache Tika toolkit detects and extracts metadata and text from over a thousand different file types (such as PPT, XLS, and PDF).

RoaringBitmap / RoaringBitmap

A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others

apache / nutch

Apache Nutch is an extensible and scalable web crawler

apache / gravitino

World's most powerful open data catalog for building a high-performance, geo-distributed and federated metadata lake.

bucket4j / bucket4j

Java rate limiting library based on token-bucket algorithm.

apache / fineract

Apache Fineract

apache / solr

Apache Solr open-source search software

JonathanLink / PDFLayoutTextStripper

Converts a pdf file into a text file while keeping the layout of the original pdf. Useful to extract the content from a table in a pdf file for instance. This is a subclass of PDFTextStripper class (from the Apache PDFBox library).

apache / hop

Hop Orchestration Platform

apache / jena

Apache Jena, A free and open source Java framework for building Semantic Web and Linked Data applications.

apache / commons-io

Apache Commons IO

bytechefhq / bytechef

Open-source AI agents and workflow automation. Self-host or embed in your SaaS. Apache 2.0 alternative to n8n and Zapier.

apache / rocketmq-clients

RocketMQ Clients - Collection of Client Bindings for Apache RocketMQ

apache / incubator-seata

:fire: Seata is an easy-to-use, high-performance, open source distributed transaction solution.

apache / hadoop

Apache Hadoop

apache / pulsar

Apache Pulsar - distributed pub-sub messaging system

apache / dolphinscheduler

Apache DolphinScheduler is the modern data orchestration platform. Agile to create high performance workflow with low-code

Activiti / Activiti

Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.

apache / seatunnel

SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.

apache / iceberg

Apache Iceberg

apache / beam

Apache Beam is a unified programming model for Batch and Streaming data processing.

apache / tomcat

Apache Tomcat

apache / shardingsphere-elasticjob

Distributed scheduled job

apache / storm

Apache Storm

apache / zeppelin

Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.

apache / flink-cdc

Flink CDC is a streaming data integration tool

apache / iotdb

Apache IoTDB

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.

apache / hudi

Upserts, Deletes And Incremental Processing on Big Data.

apache / nifi

Apache NiFi

apache / hive

Apache Hive

strimzi / strimzi-kafka-operator

Apache Kafka® running on Kubernetes