Open Source Geospatial Foundation
10
Open source
MapGuide Open Source is a platform for developing web mapping applications.
58
Rocket.Chat
1,324
Open source
Open source team chat Slack alternative with cloud support.
8
Microsoft Corporation
1,361
Commercial
Need IM in the office but cant use Windows Messenger? get Office own IM!
BT
17
Freeware
With BT Office Communicator installed, your PC becomes a multi-featured phone.
Jak Spalding
20
Freeware
A simple tool to work with Office Communicator 2007 that enables custom statuses.
SSuite Office Software
8
Freeware
Collaborate better together with this communication sidebar.
Tenebril Incorporated
Freeware
Small, free, open-source chat system for Windows. FriendlyTalk sports an unique chat interface, allo....
3
Philip White
221
Freeware
IntraNet Chat is an open source Intranet messenger.
1
Jesse McGrew
74
Freeware
Visual IRC (ViRC) is an open source Internet Relay Chat client for the Windows.
7
Jitsi
4,231
Open source
Jitsi is an open source video conferencing and chat program.
1
Mozilla
351
Open source
An open source, Mozilla Thunderbird-based mail, news and chat client.
TCT
5,991
Open source
A free, open-source alternative to MS Office Excel.
74
Colin Finck
139
Open source
Open-source shortcut bar with the style of the Microsoft Office shortcut bar.
Extentech Inc.
3
Shareware
Sheetster is an open source, Java alternative to Google Spreadsheets and Office.
Ascensio System SIA
Freeware
Open source office suite for working with text, spreadsheets and presentations.
