Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- BSD

Apps similar to HSQLDB include DBeaver, which is open source with a free version. Other options are SQLite, PostgreSQL, MySQL Community Edition and MongoDB. Relational Databases like HSQLDB are a crowded field, with more than 50 alternatives for Windows, Linux, Mac, the web and self-hosting.

VFront is a dynamic front-end for MySQL or PostgreSQL databases written in PHP and Javascript. With VFront you can create forms for manage your data in AJAX style, different rules and privileges for groups, report in XML,HTML,PDF,statistics and much more.




UnQLite is a in-process software library which implements a self-contained, serverless, zero-configuration, transactional NoSQL database engine. UnQLite is a document store database similar to MongoDB, Redis, CouchDB etc.
Titan is a scalable graph database optimized for storing and querying graphs containing hundreds of billions of vertices and edges distributed across a multi-machine cluster. Titan is a transactional database that can support thousands of concurrent users executing complex graph...
An embedded database built on object storage. Unlike traditional LSM-tree storage engines, SlateDB writes data to object storage to provide bottomless storage capacity, high durability, and easy replication.






dbHarbor is more than just database management tool. It gives developers and database administrators one place to design, implement and test databases.



Slashbase is an open-source in-browser database IDE for your dev/data workflows. Use Slashbase to connect to any of your database, browse data and schema, write, run and save queries, create charts, right from your browser. Supports PostgreSQL and MongoDB.


H2 is a relational database management system written in Java. It can be embedded in Java applications or run in the client-server mode. The disk footprint (size of the jar file) is about 1 MB.




SQLGate is an integrated database management and development solution that simplifies the construction and operation of databases. A solution that fits different types of databases, SQLGate is customized for seven different databases that make up 83.2% of the DBMS market.




HBase is an open source, non-relational, distributed database modeled after Google's BigTable and is written in Java. It is developed as part of Apache Software Foundation's Apache Hadoop project and runs on top of HDFS (Hadoop Distributed Filesystem), providing...