Productivity
Mind Mappers
FreePlane FreeMind (HowTo, Intro) TreeSheets (Tutorials) Calligra Flow Diagram
AGILE Boards
Phacility Taiga.io Kanboard (Windows & Linux Only) Wekan RestyaBoard Trello ZenKit
Project Planners
Project Libre GanttProject Calligra Plan
Timers
Mater PomoLectron Productivity Timer Pomotroid Pomobaro Super Productivity Thomas ZenFocus Cattr Stretchly
Notes
Joplin Logseq StandardNotes Zettlr SimpleNote Evernote Obsidian
To Do Lists
Habitica Todour ActivityWatch (Super early in development) Strategr OpenToDoList
Group Chat
Element Matrix Jitsi Jitsi Meet Rocket Chat Let's Chat Zulip Chat MatterMost Wire Gitter Crust Messaging Jami Mumble Discord Slack
Instant Messaging
Signal Telegram Session Tox Chat HexChat
E-Mail
Tutanota Posteo ProtonMail Thunderbird
Social Media
Okuna Diaspora Friendi.ca Mastodon Textile PixelFed
Fonts
BirdFont (BF Tutorials) Font Forge (Tutorials) Font Library
Document Formatting
LibreOffice OpenOffice Etherpad CryptPad PDFsam Scribus (Tutorials) Calligra Words Calligra Stage Calligra Sheets LaTeX (Tutorial) Lyx TexLive
File Conversion
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