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49 Communication apps

sorted A to Z · page 1 of 2

A–ZCheapestMost established
Narrow byFree plan236Open source109Self-hostable92
  1. 1ADAMANT MessengerAnonymous ⋅ Secure ⋅ Unstoppable ⋅ Crypto Wallets ⋅ Open-source ⋅ Community-drivenOpen sourceSelf-hostable
  2. 2Apache OpenMeetingsFree planOpen sourceSelf-hostable
  3. 3Apache VysperAn XMPP serverOpen sourceSelf-hostable
  4. 4BigBlueButtonBigBlueButton is a purpose-built virtual classroom that empowers teachers to teach and learners to learn.Free planOpen sourceSelf-hostable
  5. 5BitlBeeBitlBee brings IM (instant messaging) to IRC clients.Open sourceSelf-hostable
  6. 6CachetDowntime happens. Communicate it.Free planOpen sourceSelf-hostable
  7. 7CampfireSuper simple group chat, without a subscription. And you get the code, too.FreeOpen sourceSelf-hostable
  8. 8ColibriChats where you truly own your data.$5–$25/moOpen sourceSelf-hostable
  9. 9ConduitA Matrix homeserver written in RustOpen sourceSelf-hostable
  10. 10ContinuwuityA community-driven Matrix homeserverFree planOpen sourceSelf-hostable
  11. 11CwtchMetadata-Resistant MessagingOpen sourceSelf-hostable
  12. 12Delta ChatDecentralized secure messengerOpen sourceSelf-hostable
  13. 13Element ProSecure collaboration and messagingFree planOpen sourceSelf-hostable
  14. 14FluxerA chat app that puts you firstFree planOpen sourceSelf-hostable
  15. 15FreenetDecentralize EverythingFreeOpen sourceSelf-hostable
  16. 16GaleneGalene videoconference serverFree planOpen sourceSelf-hostable
  17. 17Jitsi MeetMore secure, more flexible, and completely free video conferencingFreeOpen sourceSelf-hostable
  18. 18KeychatSuper App for Humans and Agents.FreeOpen sourceSelf-hostable
  19. 19LinphoneReal-time communicationFree planOpen sourceSelf-hostable
  20. 20MailPoetBetter Email for WordPress-Powered Websites.Free planOpen sourceSelf-hostable
  21. 21MattermostCollaboration Platform for Mission Critical WorkOn requestFree planOpen sourceSelf-hostable
  22. 22MiroTalkFree Secure Video Calls, Chat & Screen SharingFreeOpen sourceSelf-hostable
  23. 23MirrorFly TeamsSelf-Hosted & Fully Customizable Enterprise Team Collaboration Software For Any App or WebsiteOn requestOpen sourceSelf-hostable
  24. 24MixinAn open-source crypto wallet with Signal messagingFreeOpen sourceSelf-hostable
  25. 25MovimYour Network, Your Rules.FreeOpen sourceSelf-hostable
  26. 26MumbleOpen Source, Low Latency, High Quality Voice ChatFreeOpen sourceSelf-hostable
  27. 27MyceliumChat, calls, files & docs in one open-source appFreeOpen sourceSelf-hostable
  28. 28NicegramThe financial, business, and security layer for TelegramFree planOpen sourceSelf-hostable
  29. 29NINAMiss the 90s AOL, AIM, ICQ, or maybe even Q-Link? We do too! That's why we're bringing them back.FreeOpen sourceSelf-hostable
  30. 30OlvidPrivate messaging for everyone.From €4.99/moFree planOpen sourceSelf-hostable
  31. 31OSHI MessengerPrivacy that travels with you.FreeOpen sourceSelf-hostable
  32. 32ProseTeam chat, without the noise.From €5/moFree planOpen sourceSelf-hostable
  33. 33QuicksyHave some Quick ConversationsFreeOpen sourceSelf-hostable
  34. 34Reticulum-GoThe resilient, sovereign networking stack for everyone.Free planOpen sourceSelf-hostable
  35. 35SAMASimple but advanced open source chat server for mobile and web appsFree planOpen sourceSelf-hostable
  36. 36SessionSend Messages, Not Metadata.Open sourceSelf-hostable
  37. 37SimpleX ChatPrivate and secure messenger without any user IDs (not even random)Open sourceSelf-hostable
  38. 38SnikketSimple, secure and private messagingOpen sourceSelf-hostable
  39. 39SpacebarSelfhosted, secure communication that you're already familiar withFree planOpen sourceSelf-hostable
  40. 40StoatFind your communityFreeOpen sourceSelf-hostable
  41. 41Sylk SuiteSylk Suite is a set of real-time communications applications using IETF SIP protocol and WebRTC specifications.Free planOpen sourceSelf-hostable
  42. 42ThreemaSecure Communication For Individuals and Companies$3–$5/user/mo30-day trialOpen sourceSelf-hostable
  43. 43ValourThe Open-Source Community PlatformOpen sourceSelf-hostable
  44. 44VoceChatPersonal Chat, Personal AI, Personal Cloud, all hosted on your PC!Free planOpen sourceSelf-hostable
  45. 45VoltChatPower Your ConversationsOpen sourceSelf-hostable
  46. 46White NoiseA secure and private messenger that's lightning fast, scalable, and identity-free.FreeOpen sourceSelf-hostable
  47. 47WireCollaborate without CompromiseFrom €8.94/moFree planOpen sourceSelf-hostable
  48. 48WorkAdventureYour workplace, better!From €5/moFree planOpen sourceSelf-hostable