Join/Login
Business Software
Open Source Software
For Vendors
Blog
About
More
Articles
Create
SourceForge Podcast
Site Documentation
Subscribe to our Newsletter
Support Request
For Vendors
Help
Create
Join
Login
Business Software
Open Source Software
SourceForge Podcast
Resources
Articles
Case Studies
Blog
Menu
Help
Create
Join
Login
Home
Open Source Software
Communications Software
Open Source Windows Communications Software
x
Sort By:
Most Popular
Most Popular
Last Updated
Name (A-Z)
Rating
Clear All Filters
OS
Windows
12,485
Linux
9,696
Mac
8,141
More...
BSD
6,924
ChromeOS
5,482
Desktop Operating Systems
405
Server Operating Systems
299
Mobile Operating Systems
221
Embedded Operating Systems
66
Game Consoles
11
Category
Communications
12,485
BBS
698
Chat
3,438
Conferencing
584
Email
2,043
Fax
61
FIDO
52
File Sharing
2,199
File Sync
166
More...
Ham Radio
210
Internet Phone
225
RSS Feed Readers
161
SMS Gateways
42
Survey
95
Telephony
887
Usenet News
205
Internet
2,433
System
1,286
Software Development
960
Business
791
Multimedia
620
Games
508
Security
374
Database
364
Scientific/Engineering
342
Formats and Protocols
323
Education
321
Artificial Intelligence
175
Desktop Environment
158
Terminals
118
Text Editors
111
Social sciences
63
Mobile
58
Printing
26
Religion and Philosophy
18
Productivity
17
Blockchain
11
License
OSI-Approved Open Source
10,835
Public Domain
321
Other License
296
Creative Commons Attribution License
219
More...
GNU Free Documentation License
5
Open Source Hardware
5
Translations
English
6,642
German
1,008
French
678
Spanish
579
More...
Russian
458
Italian
369
Chinese (Simplified)
343
Dutch
231
Brazilian Portuguese
222
Polish
200
Portuguese
156
Japanese
148
Chinese (Traditional)
144
Swedish
129
Turkish
128
Czech
106
Hungarian
102
Danish
87
Arabic
81
Korean
81
Romanian
79
Finnish
77
Greek
75
Catalan
74
Norwegian
70
Bulgarian
62
Ukrainian
62
Hebrew
60
Serbian
52
Slovak
49
Indonesian
45
Vietnamese
41
Hindi
35
Lithuanian
33
Slovene
33
Croatian
32
Persian
31
Thai
30
Afrikaans
25
Estonian
23
Malay
21
Galician
18
Latvian
17
Albanian
14
Esperanto
14
Bengali
13
Macedonian
13
Belarusian
12
Bosnian
12
Icelandic
11
Basque (Euskara)
10
Tamil
9
Telugu
7
Georgian
6
Irish Gaelic
5
Latin
5
Swahili
5
Urdu
4
Marathi
3
Breton
2
Maltese
2
Welsh
2
Armenian
1
Azerbaijani
1
Kirghiz
1
Malagasy
1
Mongolian
1
Panjabi
1
Scottish Gaelic
1
Western Frisian
1
Programming Language
Java
3,402
PHP
2,399
C++
1,863
C
1,127
More...
JavaScript
1,078
C#
1,064
Python
898
Perl
708
Visual Basic
352
Delphi/Kylix
340
Visual Basic .NET
209
Tcl
148
PL/SQL
130
TypeScript
116
Go
114
Unix Shell
111
Ruby
104
JSP
95
ASP.NET
78
ActionScript
77
ASP
59
Assembly
56
Pascal
50
XSL (XSLT/XPath/XSL-FO)
45
Lua
44
Object Pascal
43
Rust
29
Lazarus
26
Free Pascal
24
Zope
24
VBScript
23
Objective C
21
Lisp
20
AutoIt
16
Cold Fusion
14
BASIC
13
Visual Basic for Applications (VBA)
12
MATLAB
11
Groovy
10
Dart
9
Kotlin
9
REALbasic
9
Ada
8
Elixir
8
Erlang
8
Flex
8
Scheme
8
AspectJ
7
Scala
7
Standard ML
7
D
6
Emacs-Lisp
6
Fortran
6
Haskell
6
AppleScript
5
Forth
5
VHDL/Verilog
5
IDL
4
OCaml (Objective Caml)
4
S/R
4
Smalltalk
4
ALGOL 68
3
AWK
3
Euphoria
3
haXe
3
Modula
3
Objective-C 2.0
3
Prolog
3
Rexx
3
APL
2
CoffeeScript
2
Common Lisp
2
Eiffel
2
LabVIEW
2
PROGRESS
2
REBOL
2
Swift
2
Yacc
2
Boo
1
COBOL
1
Crystal
1
Curl
1
Gambas
1
Kaya
1
Logo
1
LotusScript
1
LPC
1
Oberon
1
Pike
1
PL/I (Programming Language One)
1
PowerShell
1
Scilab
1
