Zulip

Zulip is a group chat app. Its most distinctive characteristic is that messages are threaded by topic, helping you have long-running, organized conversations.

Free
Open Source
Mac OS X
Windows
Linux
Android
iPhone
BSD
Web
Self-Hosted

zulip is a group chat app.

its most distinctive characteristic is that messages are threaded by topic, helping you have longrunning, organized conversations. zulip's threading makes it easy for people not always on chat (like managers, remote team members, contractors, parttime workers, etc) to weigh in on questions and decisions, and for people in different timezones to effectively communicate. it also makes it easy to catch up on the 100s of messages a day that are typical for a busy user; since you can easily skim or ignore the threads that aren't relevant to you.

Links to official Zulip sites

GitHub
Twitter
Official Website

Features

MarkDown support Group chat Group collaboration Team Collaboration Chat Bot Community based Integrated File Sharing GitHub integration Threaded Conversations

The Best 12 Zulip Alternatives

end-to-end-encryption filter is active.

971 Like

Telegram

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free. It is like SMS, but more powerful. .

Free Mac OS X Windows Linux Android iPhone Web Blackberry Mac Windows Mobile

Portable Privacy protection Ad free Built in File transfer IFTTT integration Works Offline Share files Video calling Voice Call Cloud sync Multiple Account support Lightweight Group chat Multi Device Support Voice messages Search by tags Support for Themes Chat Bot Encrypted chat Photo Sharing Public groups chat Push to talk Anonymous Secure Filesharing End to end encryption Self destructing messages Share Videos Based on phone number Stickers Send Big files Portable Linux In Game Overlay Built in Photo editor Encrypted calls Encrypted VoIP calls GPS Location Tracking Messages in cloud Persistent History Secret chats
590 Like

WhatsApp Messenger

WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.

Free Mac OS X Windows Android iPhone Android Tablet Web Blackberry S60

Built in File transfer Video calling Group chat Voice messages Encrypted chat End to end encryption Mobile friendly Based on phone number
343 Like

Tox

Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.

Free Open Source Windows Linux Android iPhone Android Tablet BSD Mac

Privacy focused Security focused Ad free Built in player Share your screen Video calling Group chat Texting Encrypted chat Anonymous Secure Filesharing Client side encryption Decentralized End to end encryption Peer To Peer
324 Like

Signal

TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or...

Free Open Source Mac OS X Windows Linux Android iPhone Android Tablet iPad Chrome

Privacy protection Security focused Built in File transfer Works Offline Video calling Voice Call Group chat Texting Voice messages Protected by Password Encrypted chat End to end encryption Cross platform Encrypted Connection Mobile friendly Self destructing messages Color coding Based on phone number Private messaging Encrypted calls Encrypted VoIP calls Forward Secrecy Send files Video chat (Encrypted)
144 Like

Wire

Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages - everything is end-to-end encrypted.

Free Open Source Mac OS X Windows Linux Android iPhone Android Tablet iPad Web

Privacy focused Security focused Share your screen Video calling Voice Call Group chat WebRTC Encrypted chat Photo Sharing End to end encryption Integrated File Sharing Privacy Protected Encrypted calls Video chat (Encrypted)
69 Like

Matrix.org

Matrix is an open standard for decentralized persistent communication over IP. It can be used for decentralised group chat, WebRTC signaling, IoT-data transfer, and generally to link together fragmented silos of communication.

Free Open Source Windows Linux Android iPhone Android Tablet iPad Web Mac

Real time collaboration Group chat WebRTC Team Collaboration Chat Bot Encrypted chat Decentralized End to end encryption Distributed GNU/linux libre Server side history
48 Like

Threema

Threema is a new mobile messaging app that puts security first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages.

Commercial Android iPhone Android Tablet iPad Android Wear Windows Phone

Security focused Multiple languages Group chat Encrypted chat End to end encryption Encrypted email Integrated File Sharing Integrated App lock
39 Like

Conversations

Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved easy encryption [OTR, OMEMO, or GPG].

Free Open Source Android Android Tablet

Group chat Encrypted chat Decentralized End to end encryption Self destructing messages OTR Picture sharing
23 Like

Wickr

Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender control.

Free Mac OS X Windows Linux Android iPhone Android Tablet iPad

Encrypted chat End to end encryption Anonymity Self destructing messages Integrated File Sharing Secret chats
8 Like

Peerio

Peerio integrates cloud storage with a messaging platform so you can safely keep your important files online and ready to send from anywhere. With end-to-end encryption, messages and files are encrypted.

Free Open Source Mac OS X Windows Linux Android iPhone Chrome OS Chrome

Privacy protection Works Offline Share files Group chat Voice messages Direct Messaging Encrypted chat End to end encryption Two factor authentication Group Messaging Based on phone number Auto update
6 Like

Plus Messenger

plus messenger is an messaging app that uses telegram 's api. plus messenger has all of telegram's features plus themes. plus messenger is free for android devices.

Free Android Android Tablet

Ad free Share files Group chat Encrypted chat End to end encryption Self destructing messages Based on phone number
1 Like

Secure Chat

Secure Chat is a Slack-alternative hosted in Switzerland. It provides a platform for teams to communicate and collaborate and share files. It has several features more...

Commercial iPhone Web

End to end encryption Trello integration Zendesk integration

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Zulip

Links to official Zulip sites

Features

Categories

Tags

The Best 12 Zulip Alternatives

Telegram

WhatsApp Messenger

Tox

Signal

Wire

Matrix.org

Threema

Conversations

Wickr

Peerio

Plus Messenger

Secure Chat

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