4th Dimension (software)

4D Programming Language
Designed byLaurent Ribardière
Developer4D SAS
First appeared1984 (1984) (dev) 1987 (1987) (official)
Stable release
v18 R5 / January 19, 2021 (2021-01-19)
Preview release
v18 R6 Beta
Implementation languageC, C++
PlatformCross-Platform
OSWindows, macOS
LicenseProprietary
Filename extensions4DB, 4DC
File formatsInterpreted, Compiled
Websiteus.4d.com
4D
Original author(s)Laurent Ribardière
Developer(s)4D SAS
Initial release1984 (1984) (ss) 1987 (1987) (v1)
Stable release
v18 R5 / January 19, 2021 (2021-01-19)
Preview release
v18 R6 Beta
Written inC++, C
Operating systemWindows, Mac OS
TypeRAD RDBMS IDE Language GUI Designer Web Server
LicenseProprietary
Websiteus.4d.com
4D Server
Original author(s)Laurent Ribardière
Developer(s)4D SAS
Initial release1993 (1993) (v1)
Stable release
v18 R5 / January 19, 2021 (2021-01-19)
Preview release
v18 R6 Beta
Written inC++, C
Operating systemWindows, Mac OS
TypeRDBMS Web Server Application Server SQL Server Database Server Language
LicenseProprietary
Websiteus.4d.com

4D (4th Dimension, or Silver Surfer, as it was known during early development) is a relational database management system and integrated development environment developed by Laurent Ribardière. 4D was created in 1984 and had a slightly delayed public release for Macintosh in 1987 with its own programming language.

The 4D product line has since expanded to an SQL back-end, integrated compiler, integration of PHP, and several productivity plug-ins and interfaces. Some of the plug-ins created by 4D include 4D Write (a word processor), 4D View (somewhat like a spreadsheet, but with extra functionality) and 4D Internet Commands (which allowed for the addition of Internet-related functionality to a database). There are also over 100 third-party plugins, free and commercial.

4D can also be used as a web server, to run compiled database applications.

Today, 4D is published by the French company 4D SAS and has a sales, distribution and support presence in most major markets, with the United States, the United Kingdom, and France being the primary markets. The product is localized in more than a dozen languages.