Free universal database tool and SQL client
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Chat2DB is a free, cross-platform, local-first database client and SQL workspace for developers, DBAs, analysts, and data teams. Connect to 40+ databases, manage data, edit and run SQL, and use your own AI model to generate, explain, and optimize queries. Available on desktop, web, Docker, and CLI, with MCP support.
🔎 Open source distributed and RESTful search engine.
- search
- search-engine
- analytics
- java
Flyway by Redgate • Database Migrations Made Easy.
- flyway
- java
- database-migrations
- java-library
jOOQ is the best way to write SQL in Java
- jooq
- java
- sql
- jpa
Main Liquibase Source
- java
- liquibase
- database-migrations
- java-library
Distributed Peer-to-Peer Web Search Engine and Intranet Search Appliance
Database Subsetting and Relational Data Browsing Tool.
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.
- java
- elasticsearch
- full-text-search
- lucene
LINQ-style queries for Java 8
Fast and Easy mapping from database and csv to POJO. A java micro ORM, lightweight alternative to iBatis and Hibernate. Fast Csv Parser and Csv Mapper
A jOOQ-CodeGenerator to create vertx-ified DAOs and POJOs.
- jooq
- vertx
- java
- vertx-jooq
OME (Open Microscopy Environment) develops open-source software and data format standards for the storage and manipulation of biological light microscopy data. A joint project between universities, research establishments and industry in Europe and the USA, OME has over 20 active researchers with strong links to the microscopy community. Funded by private and public research grants, OME has been a major force on the international microscopy stage since 2000.
- omero
- java
- python
- server
Official Neo4j JDBC Driver
- neo4j
- neo4j-driver
- jdbc
- integration
An ORM / OGM for the TinkerPop graph stack.
- tinkerpop
- graph-database
- tinkerpop-frames
- ogm
Command line util for export oracle schema to set of ddl scripts
- export-oracle-schema
- ddl
- oracle-db
- oracle
Spring data gremlin makes it easier to implement Graph based repositories. This module extends Spring Data to allow support for potentially any Graph database that implements the Tinkerpop Blueprints 2.x API.
Non-Blocking Rxified Vertx aerospike client
- vertx
- aerospike
- rxjava2
- reactive
new Db4o GPL Source Code for Java7+ & .netstardard2.0 Android Xamarin..., the best database project to help you to learn how to make databases
- oodb
- db4o
- database
- java
Model Layer Implementation for a J2EE Pull MVC WebApp
- j2ee
- mvc
- orm
- velocity