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Free Databases
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Open-source Databases (freeware)
Free Databases
NoSQL Databases
Free Data Models
Free Database Tools
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Open-source Databases (freeware)
Apache DerbyAn open source relational database implemented entirely in Java
Apache DerbyFreeware, open-source, relational, small-footprint database system which is fully created in Java. Runs on any operating system which has a compatible Java Virtual Machine installed.
B-Tree FilerFast file-based database-system created with Delphi, and which is not dependent on other tools, such as the BDE, ODBC or third-party dll's. Freeware, open-source.
Berkeley DBOpen Source embedded database system. It consists of a toolkit that provides high-performance built-in database support for desktop and server applications. Access through B+tree, Extended Linear Hashing, Fixed and Variable-length records, and Queues. No support for SQL. Also: transactions, database recovery, online backups, and separate access to locking, logging and shared memory caching subsystems.
Supports C, C++, Java, Tcl, Perl, and Python APIs. Runs on Windows 95/98/NT/2000, VxWorks, Linux and various other types of Unix.
Freeware when distributed with non-commercial or open-source applications.
DataReelA cross-platform C++ development kit used to build multi-threaded database and communications applications. Using DataReel you can build end-user applications, embedded systems, and reusable libraries for multiple operating systems.
DrizzleA lightweight open-source MySQL-alternative database system. Suitable for Linux (Fedora, Red Hat, Debian, Ubuntu) and Apple OSX.
Firebird DatabaseFirebird is a relational database for Linux, Windows, and a variety of Unix platforms. Open-source, freeware, based on Interbase.
FlashFilerFreeware, open-source SQL client/server database engine created using Delphi.
GNU SQL ServerA free portable multiuser relational database management system created in C. It supports SQL89 and has some extensions from SQL92.
H2 Database EngineOpen source Java SQL database engine with embedded, server and cluster modes. Supports standard SQL and the JDBC API.
The author of H2, Thomas Mueller, is also the original developer of Hypersonic SQL (see below). However, H2 is built from scratch to overcome some limitations of Hypersonic SQL / HSQLDB.
HyperSQL - HSQLDBFast, small-footprint relational SQL database system written entirely in Java.
MariaDBDatabase server that offers drop-in replacement functionality for MySQL. It is built by some of the original authors of MySQL and the open source community. It also offers additional features, optimizations and patches. For Linux, Windows and Solaris.
MySQLWell-known freeware, multi-user, multi-threaded SQL database server. Versions available for Windows, Linux, Solaris, FreeBSD, AIX, SunOS, etc. JDBC drivers available. Most Internet providers offer MySQL as part of their Webhosting packages.
Freeware under the GPL license.
OcelotFree database that supports the full ANSI / ISO SQL Standard (1992), and a list of SQL3 features (also known as SQL-99). Runs on various versions of Windows. Database can be called using ODBC. Programs written in C, BASIC, Pascal, Delphi, etc. can also use this database system with direct dll calls.
If you want to distribute this database with your freeware program, it might not be free.
Percona ServerA high-performance open-source drop-in replacement for MySQL. Suitable for Linux (Read Hat, Ubuntu, CentOS, Fedora, Debian), FreeBSD and SunOS.
PerstPerst is an open source, object-oriented embedded database for Java and .NET.
PostGreSQLFreeware. "The Vision of PostgreSQL, Inc. is to support the market dominance of PostgreSQL as the definitive freeware SQL database solutions for individuals and organizations worldwide."
Advanced object-relational DBMS, supporting almost all SQL constructs, including sub-selects, transactions, and user-defined types and functions. Runs on various flavors of unix, like Linux, FreeBSD. Clients available for OS/2 and Win32. ODBC and JDBC drivers available.
Sanchez GT.MIndustrial strength, transaction processing application platform consisting of a database engine optimized for high TP throughput and a compiler for the M (aka MUMPS) programming language. GT.M is open-source freeware on x86/Linux.
SQLLiteSQLite is a small C library that implements a self-contained, embeddable, zero-configuration SQL database engine.
Free Databases
DB2 Express-CFree edition of IBM's commercial DB2 database.
MS SQLServer
Express Edition
Freeware lightweight version of Microsoft's commercial SQL Server database.
Oracle Database 10g
Express Edition
Freeware edition of Oracle's high-grade 10g database.
Real IsamA database library (DLL) that uses the ISAM method (Indexed Sequential Access Method) to manage access keys and variable length data records. For C++, Delphi, Visual Basic, etc. Freeware for Windows.
NoSQL Databases
Data-storage options without using a RDBMS (relational database management system) and without SQL. Removing the SQL/RDBMS layer can improve performance and scalability. For instance, uses its own NoSQL system called Dynamo and Google uses BigTable.
CassandraA highly scalable, eventually consistent, distributed, structured key-value store. Cassandra brings together the distributed systems technologies from Dynamo and the data model from Google's BigTable
CouchDBApache CouchDB is a distributed, fault-tolerant and schema-free document-oriented database.
HBaseOpen-source distributed database written in Java.
HypertableAn open-source column-based distributed data storage system designed to support applications requiring maximum performance, scalability, and reliability.
mongoDBHigh-performance, open source, schema-free, document-oriented database written in C++.
Project VoldemortAn open-source distributed key-value storage system.
The dark side of NoSQLDisadvantages of the NoSQL approach.
TreePad X Enterprise
384 Gigabyte Personal Information Manager and Word Processor.
Intuitive and versatile, including Website Generator, spellchecker, thesaurus, attachments, search engine, recycle bin, and much more! For Windows and Linux/Wine.
Click here to get the free evaluation version.
Free Data Models
Library of Free
Data Models
Free data models and diagrams. A useful site for those interested in database design
OpenDB AllianceA universal 'Public PIM' data model for storing addresses, phone numbers, projects and products and their many-to-many relationships.
Free Database Tools
Cube it ZeroA free OLAP cube builder for SQL Server which brings building cubes within the grasp of anyone familiar with MS Access queries (or SQL Server Views) using a simple 4 step process.
Direct SQLCross-platform (Windows and Linux) Delphi/Kylix native components for directly accesing mySQL servers (without using any externall dll's).
MySQL++MySQL++ is a C++ wrapper for MySQL's API.
Open source
dbExpress drivers
DbExpress driver for ODBC. Supports Delphi 7 & 6.02, BCB 6, and Kylix 2 & 3. Tested against many Databases including: Microsoft SqlServer, Oracle, IBM DB2, Centura SqlBase, MySql, Microsoft Access, and
ToadFreeware tool for database administration and development consisting of SQL Editor, Database Browser, Export Utility, Sessions Manager, Project Manager, and other features to make you more productive than before. Toad supports the following databases: Oracle, DB2, SQL Server, MySQL and runs on Windows.
Related Freebyte Pages
Free Java ProgrammingFree Java IDE's, compilers, object libraries, distribution and install tools, database systems, and tutorials.
Free Cobol
Free Cobol compilers, tutorials and resources.
Free Cross-Platform
Programming Tools
Free programming tools, interpreters and frameworks following the principle 'create once, compile anywhere' or 'create once, run anywhere'. This means that once you have created your program using one of the tools listed on this page, you can compile or run it on multiple platforms without much (if any) adaptation.
Free Delphi
Free Delphi compilers, components, programming, libraries, tools and resources.
Free Pascal
Free pascal compilers, tutorials, tools and resources.
Free C++ (and C)
Free C++ IDE's, compilers, libraries, tools, resources and tutorials for Linux/Unix, Windows, MAC, etc.
Free Assembler
Free tools for the assembler programmer for a variety of platforms and processors.
Free Basic ProgrammingFree Basic IDE's and Compilers, free Basic Interpreters, tutorials and resources.
Free Help File
Free help-file authoring tools and programs to create WinHelp and HTMLHelp files.
Free Operating SystemsFree operating systems, such as: Linux, FreeBSD, Windows clones, emulators and much more. Also: interesting alternative commercial operating systems.
Free Programming ToolsFree programming tools for Windows, Linux, etc. Free C++, C, Delphi, Basic, Assembler, Cobol, Pascal, Java, SQL, Databases; links to free compilers, databases, interpreters, IDE's, installers, components, libraries, languages, helpfile generators and more.
Free Unicode and
Programming tools
Free C++, Delphi and Java Unicode Libraries, free fonts and font-engines, free unicode resources and related information.
Free Web DevelopmentFree Web design and Web development tools. Free scripts, templates, tutorials and other resources. Free and easy-install Web servers (Apache + MySQL + PHP + more) for Linux, Windows, MAC.
Free Website ToolsFree Website templates, clock widgets, counters, Web statistics, polls to put on your site, guest books to put on your site, DNS services, image optimizers and converters, background creation programs, URL forwarding services, site search engines, HTML editors, HTML and link validation tools, tutorials, resources, etc.
Free drivers, dll's,
and bios upgrades
Find your missing system file (dll, vxd, ocx, driver, etc.) or BIOS upgrade, and download it for free.
Free Encryption and
Computer Security
Free file, disk and email encryption software; free password managers, free data wiping tools, firewalls, computer vulnerability tests.
Free File and
Disk Utilities
Disk catalog programs; backup, compression, split and zip programs; disk search engines, disk management utilities, remote file storage services, data recovery tools, data wipe tools, downloadable boot disks and more.
Free System and
Administrator utilities
Free process viewers, system analysis tools, network monitoring tools, registry tools, task schedulers.
Free Home pagesPublish your own Web pages for free! Find the best service to host your home page. Create your Web page without any knowledge of HTML. Free services which enable you to run your own CGI scripts (PHP, ASP, Perl, etc.).
Information wanted!
If you know of any good free programming tools, like compilers, databases, assemblers/disassemblers, components, libraries, languages, online books, help tools, icons, websites, which are not listed in the Freebyte programming section, please let us know!
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Last updated on September 29, 2011

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