Networking libraries

Name	Developers	Platforms	License	Supported protocols	Remarks
lNet	Aleš Katona	Windows, Linux, macOS, FreeBSD	Modified LGPL	TCP, UDP, HTTP, HTTPS, FTP, SMTP, TELNET	Lazarus/FPC
Synapse	Lukas Gebauer	Windows, Linux, macOS, FreeBSD	BSD style license	TCP, UDP, HTTP, HTTPS, FTP, SMTP, SNMP, NTP, POP3, PING, IMAP, LDAP, FTPS, DNS	Runs on both Delphi and Lazarus/FPC
Indy	team	Windows, Linux, macOS, iOS, Android	MPL, modified BSD	numerous protocols	Runs on both Delphi and Lazarus/FPC
Internet Tools	Benito van der Zander	Windows, Linux, macOS, Android	GPL	HTTP, HTTPS
IP*Works!	team	Windows, Linux, macOS	Commercial	numerous protocols	Runs on both Delphi and Lazarus/FPC; requires .NET Framework 2.0 - 4.8.
ICS	François Piette	Windows	Freeware(*)	numerous protocols	Delphi/FPC. Kylix/FPC is a separate, abandoned codebase
miniSocket	Zaher Dirkey, Bilal Alhamad	Windows, Linux, macOS	Modified LGPL	TCP, HTTP, HTTPS, SMTP, OpenSSL, TLS1.3	Delphi and FPC
CrossSocket	WindDriver	Windows, Linux, macOS, Android	LGPL-3.0 license	numerous protocols	Delphi and FPC

(*) request to send a postcard when used in production.

Web Frameworks

It's actually hard to define what particular functionality a web-framework should provide. At least it should be able to communicate with a web-server OR even provide web-server functionality itself.

The content and a coverage of each framework listed below varies. Some libraries provide functionality that is implemented in other libraries, i.e. HTML creation, database interaction, encryption, handling archive files, while others do not. It's questionable, if such functionality is mandatory for a web-framework.

Library

Link

Notes

fcl-web

FPC packages

ExtPascal

https://github.com/farshadmohajeri/extpascal

GPLv3

Brook

https://github.com/risoflora/brookfreepascal

LGPLv2.1

mORMot

https://github.com/synopse/mORMot

MPLv1.1 GPLv2.0 LGPLv2.1

Fano Framework

https://github.com/fanoframework/fano

https://fanoframework.github.io/

MIT

Powtils

https://github.com/z505/powtils

FastPlaz

https://github.com/fastplaz/fastplaz

https://github.com/fastplaz

Freeware?

The library is based on fcl-web in order to handle the communication.

Provides high level MVC routines.

Comparison by WebServer Communication

Library	CGI	FastCGI	SCGI	Apache Module	uWSGI
fcl-web	Yes	Yes	No	Yes	No
ExtPascal	Yes	Yes	No	No	No
Brook	Yes	Yes	No	No	No
mORMot	Yes	Yes	No	No	No
Fano	Yes	Yes	Yes	No	Yes
Powtils	Yes	No	No	No	No

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From the Free Pascal wiki, page "Networking libraries", as it stood on 2023-10-02 after a change by Zaher, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.