Melhores alternativas Grátis/Livres e Open Source!

NOS = Não Open Source

Quem quiser ajudar a popular ainda mais a lista: Github

Search engines

• Brave / beta
• MetaGer
• Startpage
• Qwant
• Searx
• YaCy
• DuckDuckGo

Browsers

• Tor
• Firefox
• Brave
• Bromite - Android

E-mails

• ProtonMail
• Tutanota
• Posteo
• Mailbox
• RiseUp
• Mailfence / NOS
• Runbox / NOS

Authenticators

• FreeOPT
• Bitwarden / Paid version
• AndOPT - Android
• Authy / NOS

Password Managers

• Bitwarden
• KeepassXC
• Nordpass / NOS

Messaging apps

• Signal
• Wire
• Session
• Element
• Tox

VPN

• Mullvad
• Proton VPN
• Mozilla VPN
• RiseUp VPN
• Private Internet Access
• Windscribe

Calendar

• Proton Calendar
• Tutanota
• Posteo
• Mailbox
• Lightning Calendar
• Nextcloud Calendar
• Etar
• Gnome Calendar
• Kalendar

To-do and notes

• Standard Notes
• Joplin
• OpenProject
• QOwnNotes
• Simplenote
• CherryTree
• Zettlr

Cloud and Sync

• Nextcloud
• Owncloud
• Filen
• Syncthing
• Cryptomator
• Mega / NOS
• pCloud / NOS

Code Editors

• VSCodium
• CodeSandbox
• Atom - Discontinued
• Eclipse IDE
• Vim
• PyCharm

Office

• LibreOffice
• Cryptpad
• Caligra
• OnlyOffice
• Apache OpenOffice

PDF

• Okular
• Sumatra
• Evince
• LibreOffice Draw

Mind-mapping

• Freeplane
• FreeMind
• diagrams
• vym
• TiddlyMap
• MindApps - Online

Image editors

• GIMP
• PhotoGIMP
• Krita

Video editors

• Kdenlive
• OpenShot
• Shotcut
• Olive
• Avidemux

Digital Audio Workstation

• LMMS
• Ardour
• Audacity
• Tenacity

Research Managers

• Zotero
• JabRef
• Qiqqa

Maps

• OpenStreetMap
• OsmAnd - iOS / Android

Readers RSS

• Raven
• Feeder - Android