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76 Communication apps

sorted A to Z · page 1 of 2

A–ZCheapestMost established
Narrow byFree plan236Open source109Self-hostable92
  1. 1AdiumA free instant messaging application for macOS that can connect to XMPP (Jabber), IRC and more.FreeOpen source
  2. 2Anonymous MessengerA peer to peer private anonymous and secure messenger that works over tor.FreeOpen source
  3. 3Apache OpenMeetingsFree planOpen sourceSelf-hostable
  4. 4ArcaneChatPrivate chats for the familyFreeOpen source
  5. 5BeeBEEPFree Office MessengerFreeOpen source
  6. 6BertyWe build tools to enhance communication freedomFreeOpen source
  7. 7BigBlueButtonBigBlueButton is a purpose-built virtual classroom that empowers teachers to teach and learners to learn.Free planOpen sourceSelf-hostable
  8. 8Brave TalkUnlimited, private video calls, right in your browser. No extra apps. No tracking. Just free connections, powered by Brave.Free planOpen source
  9. 9BriarSecure messaging, anywhereFreeOpen source
  10. 10CachetDowntime happens. Communicate it.Free planOpen sourceSelf-hostable
  11. 11CampfireSuper simple group chat, without a subscription. And you get the code, too.FreeOpen sourceSelf-hostable
  12. 12ChatSecureFree and open source encrypted chat for iOS.FreeOpen source
  13. 13ColumbaMessage freely. No internet required.FreeOpen source
  14. 14ContinuwuityA community-driven Matrix homeserverFree planOpen sourceSelf-hostable
  15. 15ConversationsThe very last word in instant messagingFree planOpen source
  16. 16CyphQuantum-Resistant Encrypted Communication & Telehealth$6–$50/moFree planOpen source
  17. 17EkigaFree Your SpeechFreeOpen source
  18. 18Element ProSecure collaboration and messagingFree planOpen sourceSelf-hostable
  19. 19FinchFreeOpen source
  20. 20FluxerA chat app that puts you firstFree planOpen sourceSelf-hostable
  21. 21FreenetDecentralize EverythingFreeOpen sourceSelf-hostable
  22. 22GajimFree and fully featured chat app for XMPPFreeOpen source
  23. 23GaleneGalene videoconference serverFree planOpen sourceSelf-hostable
  24. 24GlitchPlay Free, Rental, and Premium Indie Games OnlineFree planOpen source
  25. 25JamiShare, freely and privatelyFreeOpen source
  26. 26Jitsi DesktopOpen Source Video Calls and ChatFree planOpen source
  27. 27Jitsi MeetMore secure, more flexible, and completely free video conferencingFreeOpen sourceSelf-hostable
  28. 28KeychatSuper App for Humans and Agents.FreeOpen sourceSelf-hostable
  29. 29KMessthe Live Messenger alternative for LinuxFreeOpen source
  30. 30Kontalk MessengerCommunity-driven Instant Messaging NetworkFreeOpen source
  31. 31LAN MessengerAn opensource LAN messengerFreeOpen source
  32. 32LinphoneReal-time communicationFree planOpen sourceSelf-hostable
  33. 33MailPoetBetter Email for WordPress-Powered Websites.Free planOpen sourceSelf-hostable
  34. 34MattermostCollaboration Platform for Mission Critical WorkOn requestFree planOpen sourceSelf-hostable
  35. 35MeroChatText based, 1 on 1, friendly only random chat!FreeOpen source
  36. 36MeshA secure, anonymous, peer-to-peer, instant messenger!FreeOpen source
  37. 37MeshtasticOff-Grid Communication For EveryoneFree planOpen source
  38. 38Miranda NGNext Generation of Miranda IMFree planOpen source
  39. 39MiroTalkFree Secure Video Calls, Chat & Screen SharingFreeOpen sourceSelf-hostable
  40. 40MixinAn open-source crypto wallet with Signal messagingFreeOpen sourceSelf-hostable
  41. 41MovimYour Network, Your Rules.FreeOpen sourceSelf-hostable
  42. 42MumbleOpen Source, Low Latency, High Quality Voice ChatFreeOpen sourceSelf-hostable
  43. 43MyceliumChat, calls, files & docs in one open-source appFreeOpen sourceSelf-hostable
  44. 44NicegramThe financial, business, and security layer for TelegramFree planOpen sourceSelf-hostable
  45. 45NINAMiss the 90s AOL, AIM, ICQ, or maybe even Q-Link? We do too! That's why we're bringing them back.FreeOpen sourceSelf-hostable
  46. 46OlvidPrivate messaging for everyone.From €4.99/moFree planOpen sourceSelf-hostable
  47. 47OSHI MessengerPrivacy that travels with you.FreeOpen sourceSelf-hostable
  48. 48palava.tvA cost-free, simple to use, secure, and open source platform for video callsFreeOpen source