Best Slack Alternatives (171)

Microsoft Teams

Freemium

Microsoft Teams is a collaboration platform that brings together chat, video meetings, file storage, and application integration in a single …

Google Chat

Freemium

Google Chat is a communication and collaboration platform developed by Google as part of G Suite. It allows teams to …

Skype

Freemium

Skype is a popular communication software that allows free voice and video calls, instant messaging, and file sharing over the …

AirSend

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

Mirotalk

Open Source

MiroTalk is an open source web based video conferencing platform. It enables video calling directly in the browser with zero …

Fuse Chat

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

Tapwater

Open Source

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

Spectrum Chat

Open Source

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

AtomJump.com

AtomJump is a software suggestion website that provides alternatives and comparisons for various types of software. It aims to help …

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

Open Source

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, …

LeggoChat

Open Source

LeggoChat is an open-source, self-hosted chat and instant messaging application. It allows users to communicate in real-time through public and …

Wickr

Open Source

Wickr is an encrypted messaging app that allows users to exchange end-to-end encrypted and content-expiring messages, including photos, videos, and …

SimplyVideo

SimplyVideo is a video editing software that makes it easy for beginners to create professional-looking videos. With an intuitive drag-and-drop …

Whaller

Open Source

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 …

Videolify

Open Source

Videolify is a video creation and editing software that allows users to easily create professional-looking videos by providing templates, stock …

Databag

Open Source

Databag is an open-source version control system for tabular data like CSVs. It allows you to track changes to your …

Actor Messenger

Actor Messenger is a messaging app focused on privacy and speed. It allows users to send text, voice, photo and …

Conference Calling

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

Nextcloud Talk

Open Source

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

Secure Chat

Open Source

Secure Chat is an open source, encrypted chat application that allows users to communicate privately and securely. It uses end-to-end …

Team.video

Subscription

Team.video is a video hosting platform designed specifically for businesses. It makes it easy to publish, manage, analyze and monetize …

Pumble

Open Source

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

Open Source

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, …

Google Spaces

Google Spaces was a communication app released by Google in 2016. It allowed small groups to share information by topic …

Planio

Open Source

Planio is an open source project management and issue tracking web application. It allows teams to plan projects, assign tasks, …

Total.js Messenger

Open Source

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

Open Source

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

Daily Co

Daily Co is a virtual office and meeting platform that allows teams to collaborate remotely via video conferencing, screen sharing, …

HipChat

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

Corteza Messaging

Open Source

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, …

Online Video Call

Online video call software allows users to make video calls over the internet. It offers features like screen sharing, recording, …

TeamTalk.io

Freemium

TeamTalk.io is a free online collaboration software for teams. It facilitates chat, voice and video conferencing, screen sharing, and file …

IceWarp

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

Jostle

Subscription

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

AMPHORY

Open Source

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

Open Source

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

Open Source

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

Skarpline

Skarpline is a cloud-based invoicing and time tracking software designed for freelancers and small teams. It allows creating professional invoices, …

Typetalk

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

Samepage

Samepage is an online collaboration software that allows teams to communicate, collaborate on documents, manage projects, share files and more …

Filevine

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

SVYFT

Freemium

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

Moxtra

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

ZeroChat

Open Source

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

Plumm

Open Source

Plumm is a free, open source project management software. It provides tools for task management, time tracking, resource planning, reporting, …

Uberblick

Open Source

Uberblick is a free open-source project management software and task manager. It features kanban boards, mind maps, notes, and flexible …

Intraboom

Open Source

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

ARKNet

Open Source

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

articlebox

Articlebox is a content marketing software that helps businesses create, organize, and distribute high-quality articles at scale. It streamlines content …

Discord

free

Discord is a popular communication platform that combines voice, video, and text chat in a unified and user-friendly interface. Initially …

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 …

Proficonf

Open Source

Proficonf is an open-source video conferencing software that allows users to conduct meetings, webinars, and online events. It has features …

Jaconda

Open Source

Jaconda is an open-source platform for data science and machine learning. It provides a Python distribution with pre-installed libraries focused …

Zapty

Freemium

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

Shasper

Open Source

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

Open Source

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

Librem Chat

Open Source

Librem Chat is a free, open source, and end-to-end encrypted messaging platform for desktop and mobile. It is designed with …

Carrot.io

Carrot.io is a software platform that enables companies to build and manage AI products like chatbots, voice assistants, and other …

ScudCloud

Open Source

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

collAnon

Open Source

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

My Renovation

My Renovation is a home renovation planning and project management software. It allows homeowners to create customizable checklists, schedules, and …

Hyphen Messaging

Hyphen Messaging is a business-focused communication platform for team messaging, file sharing, and video calls. It allows teams to securely …

Dislack

Open Source

Dislack is an open-source alternative to Slack that focuses on privacy and security. It offers encrypted messaging, video calls, file …

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 …

Ripcord

Ripcord is a desktop chat application for group messaging and video calls. It provides a streamlined interface and group management …

JayPad

Open Source

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

MyChat

Open Source

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

Open Source

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

Conversations

Open Source

Conversations is an open source instant messaging client focused on security and privacy. It offers end-to-end encryption for chats and …

Tribecube

Tribecube is a virtual event and conference platform that allows organizers to create and host interactive online events. It offers …

Just Social

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

Alterdesk

Open Source

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

Minty Chat

Open Source

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

zoro.im

Open Source

zoro.im is an open-source web-based messaging and chat platform. It allows users to communicate in real-time via online chat, voice/video …

SpatialChat

SpatialChat is a virtual reality social platform that allows users to connect and chat in 3D spaces. Users can explore …

Phoner Second Phone Number

Phoner is an app that provides a second phone number to use for calling, texting, and verifying accounts. It helps …

Kahla

Open Source

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

Open Source

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

monocles chat

Open Source

Monocles Chat is an open-source, self-hosted team chat and collaboration platform. It offers features like private and public channels, direct …

Brightable

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

FASTEE

Open Source

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 …

Workchat

Workchat is a team communication and collaboration platform that allows workers to chat, meet, call, and collaborate across devices. It …

Output Messenger

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

dirc

Open Source

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

Open Source

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

workroo.ms

Freemium

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

Kezmo

Freemium

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

Pychat

Open Source

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

Freemium

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

Glowing Bear

Open Source

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

Open Source

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

Open Source

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

Twake

Open Source

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

Element X

Element X is a vector graphics editor for creating 2D illustrations, animations, icons, logos, and more. It offers a clean …

Acollab

Open Source

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

Cowork

Cowork is a virtual office software that aims to recreate the experience of working in a physical office remotely. It …

Hack Chat

Open Source

Hack Chat is an open source, self-hosted team chat built for developers. It has persistent messaging, private groups, code snippets, …

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 …

Sblack

Open Source

Sblack is an open-source software sketching and painting application. It is designed to emulate traditional drawing tools and techniques to …

ChatWork

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

Threema

Open Source

Threema is a secure messaging app that emphasizes privacy and security with end-to-end encryption for all communications. It allows you …

SquidHub

SquidHub is a project management and collaboration platform designed for agile teams. It provides tools like kanban boards, task management, …

Engage Spaces

Engage Spaces is a virtual event platform that allows organizations to host customized branded events such as conferences, trade shows …

Engagedots

Freemium

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

Vistasuite

Subscription

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

Waimz

Open Source

Waimz is a free and open-source video conferencing software alternative to Zoom. It allows users to host video meetings and …

Cisco Jabber

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

Dialog Messenger

Dialog Messenger is a free cloud-based business messaging platform that enables companies to have meaningful conversations with customers at scale …

Matrix.org

Open Source

Matrix.org is an open source, decentralized communication protocol and network focused on secure and private communications. It allows users to …

TribeScale

TribeScale is a software platform designed to help online community managers and community builders analyze, monitor, and grow their communities. …

Zoho Remotely

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

Zoho Cliq

Zoho Cliq is a team collaboration and communication platform that allows teams to chat, meet, collaborate on files and tasks. …

DoTimely Hub

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

Wiggio

Free

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

VideoMeeting

VideoMeeting is a video conferencing and online meeting software that allows users to meet virtually through video calls, screen sharing, …

Async

Open Source

Async is an open source asynchronous task queue / job queue based on Redis, developed in Python. It allows you …

Mattermost

Freemium

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

Guilded

Guilded is a free communication and community platform designed specifically for gaming groups and teams. It provides features like voice …

Kosmi

Open Source

Kosmi is a free and open-source virtual workspace software. It allows users to create multiple virtual desktops to organize applications …

Walkie

Walkie is a software application that provides instant messaging through voice or text across devices and teams. It allows quick …

RemoteHQ

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

9mCollab

9mCollab is a collaboration and productivity software that allows teams to communicate, share files, assign tasks, track projects, and more …

Fleep

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

AVAILO

Open Source

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

Minsh

Open Source

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

WeDo

WeDo is a visual programming language designed by Lego for use with their robots and components. It allows students to …

Gitter

Open Source

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

workshopX

workshopX is a browser-based 3D CAD modeling software. It allows users to create precise 3D models that can be used …

Kontxt

Kontxt is a social networking app that connects people through interests and experiences. It allows users to share updates, photos, …

Crust Enterprise Messaging

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

ArrowChat

Open Source

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

Milo

Open Source

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 …

FireRTC

Open Source

FireRTC is a free WebRTC-based plugin that allows users to make audio and video calls directly from their web browsers …

WorkLand

WorkLand is a project management and team collaboration software. It helps teams plan projects, assign tasks, track progress, and collaborate …

Microsoft Kaizala

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

InfinCE

Open Source

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