Best Microsoft Teams Alternatives (125)

Slack

free

Slack, the modern messaging platform for teams. Communicate in real-time, organize conversations into channels, and streamline collaboration. With integrations, file …

AirSend

AirSend is a file transfer and sharing service that allows you to easily send files and share content. It features …

Fuse Chat

Fuse Chat is a team communication and collaboration tool that allows real-time messaging, video calls, file sharing, and more. It …

Tapwater

Tapwater is an open-source alternative to Buffer for social media management. It allows you to create posts and schedule them …

Spectrum Chat

Spectrum Chat is a free and open-source instant messaging platform developed by IBM. It offers secure and encrypted messaging, voice …

i-net CoWork

i-net CoWork is a collaboration and project management software that allows teams to communicate, share files, assign tasks, track project …

Zulip

Zulip is an open-source team chat software that focuses on threaded conversations to improve productivity and organization. It has features …

Mazey

Mazey is a collaborative whiteboard and virtual workspace platform for teams. It allows for real-time collaboration on documents, whiteboards, sketches, …

Whaller

Whaller is an open-source social network platform that focuses on privacy and security. It allows users to create groups and …

iSmart.Life

iSmart.Life is a comprehensive life management and personal assistant app for iOS and Android. It includes features like reminders, to-do …

Nettu Meet

Nettu Meet is a free, open source, self-hosted web conferencing software similar to Zoom or Webex. It allows for video …

Conference Calling

Conference calling software allows multiple participants to join phone or video calls for meetings and webinars. Top options provide easy …

Nextcloud Talk

Nextcloud Talk is an open source video conferencing and communication solution designed for private clouds. It enables secure audio/video calls, …

Pumble

Pumble is a free and open source voice chat application designed for gamers. It allows users to create private servers …

Infolio

Infolio is a personal knowledge management and note taking app for organizing notes, ideas, and content. It allows users to …

LekkerIM

LekkerIM is an open-source, ad-free instant messaging client for Windows, Linux and macOS. It focuses on security, privacy and customization …

JANDI

JANDI is a team collaboration platform that helps teams communicate, collaborate, and get work done. It offers chat, file sharing, …

Total.js Messenger

Total.js Messenger is an open-source real-time web chat application built on Node.js and the Total.js web framework. It offers features …

Modular.im

Modular.im is an open-source alternative to Slack and Microsoft Teams. It is a self-hosted team chat and collaboration platform focused …

HipChat

HipChat is a team communication app that allows coworkers to privately message each other or have group conversations. Key features …

Teleport.Video

Teleport.Video is a video conferencing and screen sharing tool that allows real-time collaboration. It has features like screen sharing, video …

Corteza Messaging

Corteza Messaging is an open-source messaging and collaboration platform. It offers email, instant messaging, document management, a unified inbox, calendars, …

Done Hui

Done Hui is a project management and team collaboration software. It offers features like tasks, notes, file sharing, time tracking, …

IceWarp

IceWarp is an email server and collaboration suite that provides email, calendaring, contacts, team chat, file sharing, and other capabilities …

Jostle

Jostle is an intranet software that helps improve employee engagement and connectivity. It features news feeds, profiles, groups, and more …

AMPHORY

AMPHORY is an open-source file synchronization and sharing software. It allows users to synchronize files between multiple devices, and share …

Stackfield

Stackfield is a collaborative software design and prototyping tool that enables users to quickly create, share, and visualize web or …

eXo Platform

eXo Platform is an open source enterprise collaboration platform that includes features like document and content management, enterprise social networking, …

Braid Chat

Braid Chat is a team communication and collaboration platform that integrates chat, tasks, docs and apps in one place. It …

Hubgets

Hubgets is a free and open source project management software designed for small teams. It includes basic features like task …

Typetalk

Typetalk is a team communication and collaboration tool that enables real-time messaging, file sharing, video calls, and task management. It …

Keet

Keet is an open-source metaprogramming software for multiagent systems and social simulations. It allows researchers to quickly design, develop and …

Filevine

Filevine is a legal case and matter management software designed for law firms. It provides tools for calendaring, document management, …

SVYFT

SVYFT is a survey and form building software that allows users to easily create online surveys, polls, quizzes, and other …

palava.tv

Palava.tv is a free, open-source software that allows users to watch videos, movies, TV shows, and more from various online …

Moxtra

Moxtra is a collaboration and communication software that allows teams to collaborate virtually. It has features for messaging, meetings, task …

ZeroChat

ZeroChat is a free and open source peer-to-peer instant messaging software. It allows users to chat securely without the need …

OnTrack Meetings

OnTrack Meetings is a web-based meeting management software that helps streamline the planning and running of meetings. It provides features …

Intraboom

Intraboom is an open-source intranet and team collaboration platform. It provides features like document management, task management, calendars, forums, wikis, …

ARKNet

ARKNet is an open-source blockchain platform developed in C# and .NET that aims to provide an accessible blockchain solution for …

Rocket.Chat

free

Rocket.Chat is an open-source, self-hosted communication platform that provides team collaboration through chat, video, and audio. With features such as …

uShare.to

uShare.to is a free file sharing service that allows users to easily upload and share files or folders with others. …

HeySpace

HeySpace is a social intranet and employee engagement platform that helps companies improve communication, collaboration, and culture. It includes features …

Zapty

Zapty is a web automation and productivity tool that allows users to create workflows to automate repetitive online tasks. It …

CloudMeet

CloudMeet is a video conferencing and webinar software that allows users to host online meetings, webinars, conference calls, screen sharing …

Shasper

Shasper is an open-source alternative to Ghostery, a popular browser extension used to block trackers and ads. It offers more …

MainFrame

MainFrame is an enterprise-level mainframe platform designed for large organizations to run critical business applications. It offers high performance, scalability, …

Crugo

Crugo is an open-source low-code platform for building web and mobile applications. It allows developers and non-developers to quickly build …

ScudCloud

ScudCloud is an open-source client for Slack that works on Linux. It allows you to use Slack natively on Linux …

collAnon

collAnon is an open-source application that allows anonymous collaborative collection, filtering and analysis of text documents or survey data. It …

p2p.chat

p2p.chat is a decentralized, peer-to-peer chat application that allows users to communicate directly without relying on centralized servers. It aims …

Meshenger

Meshenger is a free, cross-platform instant messaging and voice over IP service. It allows users to send messages, make voice …

Quill Messaging

Quill Messaging is a team communication and collaboration tool with features like chat rooms, video calls, task management, and file …

TrueConf

TrueConf is a video conferencing and collaboration software that allows for HD video meetings, screen sharing, messaging, and other collaboration …

JayPad

JayPad is a minimalist text editor and note taking app. It has a clean interface for writing notes, code, prose …

MyChat

MyChat is a free and open-source messaging app for Windows, Mac, Linux, Android and iOS. It allows secure messaging, voice …

cabal

Cabal is a command-line interface for managing Haskell projects and libraries. It allows you to easily create, build, install and …

Protonet SOUL

Protonet SOUL is an open-source platform that allows users to run desktop apps in the cloud. It provides a full …

Just Social

Just Social is a social media management platform that allows you to schedule and publish content to multiple social media …

Alterdesk

Alterdesk is an open-source virtual desktop alternative to Citrix Workspace and VMware Horizon. It allows users to access virtual desktops …

Minty Chat

Minty Chat is an open-source, self-hosted online chat platform. It allows you to set up private chat rooms for teams …

Kahla

Kahla is an open-source, cross-platform instant messaging application with a focus on security and privacy. It offers end-to-end encryption, self-destructing …

Ziggs

Ziggs is a project management and collaboration software designed for creative teams. It allows users to plan projects, assign tasks, …

STAGE by vr-on

STAGE by vr-on is a VR creation and collaboration platform that allows users to build 3D environments and experiences in …

Chanty

Chanty is a team communication and collaboration tool designed for small and medium businesses. It brings messaging, video calls, file …

Kweknet

Kweknet is an open source social networking platform focused on freedom of speech and privacy. It is decentralized and uses …

Brightable

Brightable is a software that helps make websites and digital content more accessible for people with disabilities. It analyzes website …

FASTEE

FASTEE is a free and open source file transfer software. It allows fast and easy file sharing between devices on …

Idka

Idka is an AI-powered software that allows anyone to build custom virtual assistants and chatbots without coding. It has a …

Output Messenger

Output Messenger is a messaging app that allows real-time communication between devices. It has features for texting, calling, video chat, …

dirc

dirc is an open-source, lightweight Internet Relay Chat (IRC) client for Linux and Unix-like operating systems. It has a simple …

GlobalMeet

GlobalMeet is a web conferencing and online meeting software developed by PGi. It allows users to host video conferences, webinars, …

Zenchat

Zenchat is a free, open-source live chat software for websites. It allows website owners to communicate with visitors in real-time …

workroo.ms

workroo.ms is an online project management and team collaboration tool. It provides features like task lists, calendaring, file sharing, time …

Kezmo

Kezmo is a project management software designed for small teams. It allows users to create tasks, assign them to team …

Pychat

Pychat is an open-source, self-hosted chat application written in Python. It features real-time messaging, group chats, file sharing, video/voice calls, …

Thirdlane Connect

Thirdlane Connect is a customer relationship management (CRM) software that helps businesses organize contacts, track deals, automate marketing campaigns, and …

Luka

Luka is an AI assistant app developed by Anthropic. It is designed to be helpful, harmless, and honest through a …

Glowing Bear

Glowing Bear is an open-source, web-based, Javascript-powered graphical user interface for interacting with openEHR repositories. It allows users to browse …

Nimses

Nimses is a social media app that allows users to earn and spend 'nims' (an in-app currency) by performing various …

Slenke

Slenke is a free and open-source bookmark manager and archiver. It allows users to save, organize and search bookmarks, archive …

Flowdock

Flowdock is a team collaboration and chat tool designed to improve team communication and workflow. It provides group chat rooms, …

Kandan

Kandan is an open-source alternative to Asana for task and project management. It allows teams to create tasks, organize them …

Bopup Communication Server

Bopup Communication Server is a software platform for building business communication applications like live chat, co-browsing, remote support, video calls, …

Twake

Twake is an open-source collaborative workspace that allows teams to message, call, meet, organize projects, assign tasks and collaborate on …

Acollab

Acollab is a free, open source online collaboration suite. It offers an array of features including file storage, document sharing …

Happeo

Happeo is a cloud-based software platform for building digital workspace experiences. It enables teams to design and publish intranets, web …

qTeams

qTeams is a team communication and collaboration platform that allows teams to message, meet, organize projects, share files, and more …

ChatWork

ChatWork is a business chat app that helps teams communicate, collaborate, and get work done. It has features like group …

Engagedots

Engagedots is a customer engagement software that helps companies increase customer loyalty and lifetime value. It provides features like gamification, …

Vistasuite

Vistasuite is a cloud-based customer relationship management (CRM) software designed for small and medium-sized businesses. It allows users to track …

Cisco Jabber

Cisco Jabber is a unified communications application that allows users to make audio and video calls, send instant messages, share …

Zoho Remotely

Zoho Remotely is a remote support and desktop sharing software that allows IT professionals to provide remote assistance to end …

Voiswave

Voiswave is a voice over IP service and software that allows you to make and receive phone calls over the …

DoTimely Hub

DoTimely Hub is a project management and team collaboration software. It provides tools like tasks, schedules, notes, documents for organizing …

Wiggio

Wiggio is a free online workgroup application that allows small groups to easily collaborate on projects. It offers shared task …

BigBlueButton

BigBlueButton is an open source web conferencing system for online learning. It allows real-time sharing of audio, video, slides, chat, …

Mattermost

Mattermost is an open-source, self-hosted online chat service with file sharing, search and integration capabilities. It supports text, images, videos …

P2P Remote Desktop

P2P Remote Desktop is a peer-to-peer remote desktop software that allows two computers to connect directly without a central server. …

RemoteHQ

RemoteHQ is a remote access and support software that allows IT professionals to remotely connect to computers and mobile devices …

Fleep

Fleep is a free online team communication and collaboration tool. It allows teams to chat, share files, manage tasks and …

urLive

urLive is a live streaming and webinar software that allows users to easily broadcast live video streams and host interactive …

AVAILO

Availo is an open-source availability monitoring software designed to check the uptime and status of websites, APIs, and servers. It …

Minsh

Minsh is a free, open source shell developed for Linux and Unix systems. It is lightweight but feature-rich, providing an …

Gitter

Gitter is an open source instant messaging and chat room system designed for developers and GitHub projects. It allows developers …

Crust Enterprise Messaging

Crust Enterprise Messaging is a secure, private messaging and collaboration platform for businesses. It offers encrypted messaging, video calling, file …

ArrowChat

ArrowChat is an open-source chat software and messaging app for websites. It allows real-time messaging and conversations between users on …

Milo

Milo is an open-source business intelligence and data visualization platform. It provides tools for reporting, analytics, dashboards and data exploration. …

Zangi Business Solutions

Zangi Business Solutions is a cloud-based business phone system designed for small and medium businesses. It provides a variety of …

Jitsi Meet

Jitsi Meet is an open-source video conferencing platform that allows users to conduct meetings, webinars, presentations, and other events with …

Vectera

Vectera is a vector graphics editor for Windows, macOS and Linux. It is designed for illustration, graphic design, animation, and …

Microsoft Kaizala

Microsoft Kaizala is a mobile application designed to enable organizations to securely communicate, coordinate tasks, and gather data from their …

InfinCE

InfinCE is an open-source, lightweight alternative to the Infinite Campus student information system. It provides core student data management features …