Showing 2456 open source projects for "java open source projects"

View related business solutions
  • Full-stack observability with actually useful AI | Grafana Cloud Icon
    Full-stack observability with actually useful AI | Grafana Cloud

    Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

    Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
    Create free account
  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

    BigQuery automates data prep, analysis, and predictions with built-in AI assistance.

    Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
    Try Free
  • 1
    JabRef Bibliography Management

    JabRef Bibliography Management

    Graphical Java application for managing BibTeX and biblatex

    JabRef is an open-source, cross-platform citation and reference management tool. Stay on top of your literature: JabRef helps you to collect and organize sources, find the paper you need and discover the latest research. JabRef is available free of charge and is actively developed. It supports you in every step of your research work.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 2
    Apache HBase

    Apache HBase

    Get random, realtime read/write access to your Big Data

    Use Apache HBase™ when you need random, realtime read/write access to your Big Data. This project's goal is the hosting of very large tables, billions of rows X millions of columns, atop clusters of commodity hardware. Apache HBase is an open-source, distributed, versioned, non-relational database modeled after Google's Bigtable. A Distributed Storage System for Structured Data by Chang et al. Just as Bigtable leverages the distributed data storage provided by the Google File System, Apache...
    Downloads: 21 This Week
    Last Update:
    See Project
  • 3
    OpenRefine

    OpenRefine

    A free, open source, powerful tool for working with messy data

    OpenRefine is a powerful Java-based tool designed to work with messy data and improve it. With OpenRefine you can load data, understand it, clean it up, transform it, reconcile it, and augment it with web services and external data. It allows you to do this all from a web browser and in the convenience and privacy of your own computer. OpenRefine keeps all data securely in your computer by running a small server on it, using your web browser to interact with it. When you're ready, then that...
    Downloads: 8 This Week
    Last Update:
    See Project
  • 4
    QuestDB

    QuestDB

    An open source SQL database designed to process time series data

    QuestDB is a high-performance, open-source SQL database for applications in financial services, IoT, machine learning, DevOps and observability. It includes endpoints for PostgreSQL wire protocol, high-throughput schema-agnostic ingestion using InfluxDB Line Protocol, and a REST API for queries, bulk imports, and exports. QuestDB implements ANSI SQL with native extensions for time-oriented language features.
    Downloads: 14 This Week
    Last Update:
    See Project
  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
    Start Free
  • 5
    eXist-db

    eXist-db

    eXist Native XML Database and Application Platform

    eXist-db is an open-source, native XML database and application platform that provides a powerful environment for storing, querying, and managing XML documents. It is designed for complex data management needs, offering XQuery, XSLT, and RESTful web services for interacting with structured data.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 6
    Datalevin

    Datalevin

    A simple, fast and versatile Datalog database

    Datalevin is an open-source Datalog-based database written in Clojure that runs natively on top of LMDB. It supports full ACID transactions, schema-less EDN data storage, vector search with SIMD acceleration, and text-based querying. Usable as an embedded library or as a client/server database with RBAC access, it acts like SQLite or Datomic on a ledger of immutable datoms, plus modern features like vector and full-text search.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 7
    FerretDB

    FerretDB

    A truly Open Source MongoDB alternative

    MongoDB is a life-changing technology for many developers, empowering them to build applications faster than using relational databases. However, MongoDB abandoned its Open-Source roots, changing the license to SSPL making it unusable for many Open Source and Commercial Projects. FerretDB is going to be a perfect solution for those looking for MongoDB development experience available as fully Open Source Software. The core of our solution is a stateless proxy, which converts MongoDB protocol queries to SQL, and uses PostgreSQL as a database engine. ...
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    CrateDB

    CrateDB

    CrateDB is a distributed and scalable SQL database

    CrateDB is a distributed SQL database designed for massive machine data and real-time analytics. It combines the scalability and performance of NoSQL with the power and simplicity of SQL, allowing for horizontal scaling, full-text search, and complex queries over large datasets. Built in Java and powered by Elasticsearch and Lucene, CrateDB is optimized for high-velocity data ingestion and dynamic queries.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    Dokploy

    Dokploy

    Open Source Alternative to Vercel, Netlify and Heroku

    Streamline your operations with our all-in-one platform, perfect for managing projects, data, and system health with simplicity and efficiency. Simplify your project and data management, ensure robust monitoring, and secure your backups—all without the fuss over minute details. Elevate your infrastructure with tools that offer precise control, detailed monitoring, and enhanced security, ensuring seamless management and robust performance. Streamline your deployments with our PaaS....
    Downloads: 4 This Week
    Last Update:
    See Project
  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

    Access competitive interest rates on your digital assets.

    Generate interest, borrow against your crypto, and trade a range of cryptocurrencies — all in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • 10
    Datacap

    Datacap

    DataCap is integrated software for data transformation

    Datacap is an open-source data catalog and governance tool that helps organizations manage and document their data assets. It provides metadata management, lineage tracking, and collaboration features to ensure data transparency and quality. Datacap is designed for teams that need a lightweight, self-hosted solution to organize and govern their data ecosystems.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 11
    SymmetricDS

    SymmetricDS

    SymmetricDS is database replication and file synchronization software

    SymmetricDS is an open-source platform for database replication and synchronization across heterogeneous systems. It supports multi-master and one-way replication with conflict resolution and works over unreliable networks. SymmetricDS is ideal for distributed applications, data warehousing, and edge deployments where consistency and availability are key.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 12
    Eclipse JNoSQL

    Eclipse JNoSQL

    Eclipse JNoSQL is a framework

    Eclipse JNoSQL is a framework designed for Java developers to interact with NoSQL databases in a standardized way. It provides a unified API and supports various NoSQL database types, including document, key-value, column-family, and graph databases. JNoSQL integrates with Jakarta EE and MicroProfile, making it suitable for enterprise applications.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    Nitrite Database

    Nitrite Database

    NoSQL embedded document store for Java

    Nitrite is an embedded NoSQL database for Java applications, offering lightweight document storage with indexing and query capabilities.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    RESTHeart

    RESTHeart

    Rapid API Development with MongoDB

    RESTHeart is an open-source middleware that exposes MongoDB databases as a RESTful API, allowing developers to interact with MongoDB using HTTP-based queries instead of traditional drivers.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    KCloud‑Platform‑IoT

    KCloud‑Platform‑IoT

    KCloud-Platform-IoT

    KCloud-Platform-IoT is a comprehensive open-source IoT management platform built with Spring Cloud and Vue.js. It supports device registration, data collection, rule-based processing, and dashboard visualization. Designed for scalability and modularity, the platform is ideal for managing large IoT fleets in industrial or smart city environments.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 16
    Apache Iceberg

    Apache Iceberg

    Apache Iceberg

    Iceberg is a high-performance format for huge analytic tables. Iceberg brings the reliability and simplicity of SQL tables to big data while making it possible for engines like Spark, Trino, Flink, Presto, Hive, and Impala to safely work with the same tables, at the same time. The core Java library that tracks table snapshots and metadata is complete, but still evolving. Current work is focused on adding row-level deletes and upserts, and integration work with new engines like Flink and...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 17
    Spring Data Neo4j

    Spring Data Neo4j

    Provide support to increase developer productivity in Java

    Spring Data Neo4j, part of the larger Spring Data family, provides easy configuration and access to Neo4j Graph Databases from Spring applications. It offers three different levels of abstraction to access the store. The Neo4j client, the Neo4j Template, and the Neo4j Repositories. Spring Data Neo4j offers advanced features to map annotated entity classes to the Neo4j Graph Database. The template programming model is equivalent to other Spring templates and builds the basis for interaction...
    Downloads: 5 This Week
    Last Update:
    See Project
  • 18
    SpringBlade

    SpringBlade

    Microservice architecture that provides SpringCloud solutions

    BladeX is a well-designed microservice architecture that provides a full set of SpringCloud solutions. Open source China's first batch of microservice architectures that perfectly integrate SpringCloud Alibaba series components are upgraded and optimized based on stable production commercial projects, and are closer to enterprise-level needs. Pursuing enterprise development More efficient, easier to deploy, and more stable. The multi-tenant architecture that meets the Chinese-style needs supports flexible combinations of multiple modes such as multi-tenant-one database, one-tenant-one database, and multi-tenant multi-database. ...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 19
    Apache Baremaps

    Apache Baremaps

    Create custom vector tiles from OpenStreetMap

    Baremaps is an Apache Incubator project that provides tools and a Java-based pipeline for building and rendering vector tiles from OpenStreetMap (OSM) data. It’s designed for fast map generation, serving tiles, and supporting real-time updates, making it a powerful backend for map-based applications.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    PikaPython

    PikaPython

    An ultra-lightweight Python interpreter that runs with only 4KB of RAM

    An ultra-lightweight Python interpreter that runs with only 4KB of RAM, and zero dependencies. It is ready to use out of the box without any configuration required and easy to extend with C. Similar projects: MicroPython, JerryScript.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Canal

    Canal

    MySQL binlog

    Canal is an open-source project developed by Alibaba that simulates MySQL slave functionality to parse MySQL binlog files. It enables real-time data synchronization and change data capture (CDC) between MySQL and other systems such as Elasticsearch, Kafka, or HBase. Canal is widely used for data integration, replication, and monitoring across distributed systems, offering high performance and low-latency log parsing.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 22
    Jailer Database Tool

    Jailer Database Tool

    Database subsetting and relational data browsing tool

    Jailer is a tool for database subsetting, schema and data browsing. It creates small slices from your database and lets you navigate through your database following the relationships. Ideal for creating small samples of test data or for local problem analysis with relevant production data. Creates small slices from your productive database and imports the data into your development and test environment (consistent and referentially intact). Improves database performance by removing and...
    Downloads: 14 This Week
    Last Update:
    See Project
  • 23
    OrientDB

    OrientDB

    DBMS supporting graph, document, full-text and geospatial models

    OrientDB is an Open Source Multi-Model NoSQL DBMS with the support of Native Graphs, Documents, Full-Text search, Reactivity, Geo-Spatial and Object Oriented concepts. It's written in Java and it's amazingly fast. No expensive run-time JOINs, connections are managed as persistent pointers between records. You can traverse thousands of records in no time.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 24
    Druid

    Druid

    Database connection pool written in Java

    Druid is an open-source database connection pool written in Java. Druid is able to provide an extensive number of powerful monitoring functionalities for database connection. Druid has been deployed to the maven central repository. Druid provides a monitoring feature that can be implemented through filter-chain. It also comes with WallFilter, that is based on the SQL semantic analysis to protect from SQL injection attacks.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    r2dbc-postgresql

    r2dbc-postgresql

    Postgresql R2DBC Driver

    r2dbc-postgresql is a reactive PostgreSQL driver for the JVM based on the R2DBC (Reactive Relational Database Connectivity) specification. It allows non-blocking, asynchronous access to PostgreSQL databases, making it ideal for reactive Java or Kotlin applications built with frameworks like Spring WebFlux.
    Downloads: 1 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB