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Top Alternatives to Slack

Looking for Slack alternatives? We've curated 33 top alternatives that offer similar functionality. Whether you need options, free plans, or open source solutions, explore our comprehensive list to find the perfect fit for your needs.

Freemium

Slack Alternatives

Below you'll find the best alternatives to Slack. We've analyzed these options based on features, user ratings, and compatibility to help you find the right solution. Each alternative offers unique advantages that might better suit your specific needs and budget.

Hangouts

Google Hangouts was a versatile communication platform offering instant messaging, voice and video calls, and SMS capabilities directly from web browsers and mobile devices. Integrated deeply with Gmail and other Google services, it provided a convenient way to connect and collaborate across various platforms.

Unique Features

  • Strong integration with Gmail and other Google services.
  • Supports multiple communication methods in one app.
  • Seamless conversation synchronization across devices.

Compared to Slack

Strong integration with Gmail and other Google services. compared to Slack
Development and focus shifted to other Google products. unlike Slack
Discord

Discord

Free Games Community Platform

Discord is a versatile free communication platform designed initially for gamers but now widely used for communities of all types. It offers voice and text chat, video calls, and robust server customization for groups of any size, providing a centralized hub for real-time interaction and community building.

Unique Features

  • Excellent voice quality and low latency.
  • Highly customizable servers with detailed permissions.
  • Wide availability across multiple platforms.

Compared to Slack

Excellent voice quality and low latency. compared to Slack
Managing multiple servers can become overwhelming. unlike Slack
Jitsi

Jitsi

Open Source Business & Commerce Video Conferencing

Jitsi is a free and open-source suite of secure, flexible communication tools. It offers multi-platform support for voice (VoIP), video conferencing, and instant messaging, emphasizing privacy and ease of use with no account required to start a meeting.

Unique Features

  • Free and open source.
  • No account required for quick meetings.
  • Browser-based access, no download needed.

Compared to Slack

Free and open source. compared to Slack
Performance can depend on the hosting environment. unlike Slack
Basecamp

Basecamp

Commercial Business & Commerce Web Application

Basecamp is a web-based project management and team collaboration tool designed to simplify communication, task management, and document sharing for teams of all sizes. It focuses on transparency and centralizing project information.

Unique Features

  • Simple and easy to learn user interface.
  • Flat-rate pricing, regardless of user count.
  • Excellent centralized communication features.

Compared to Slack

Simple and easy to learn user interface. compared to Slack
Lacks advanced project management features like Gantt charts and complex dependencies. unlike Slack
Glip

Glip

Freemium Backup & Sync Team Collaboration Software

Glip, by RingCentral, is a comprehensive team collaboration platform combining real-time messaging, video calls, task management, and file sharing into a single, searchable hub. Designed to streamline communication and workflow, it aims to replace disjointed tools with a unified digital workspace.

Unique Features

  • Combines chat, video, tasks, and file sharing in one platform.
  • Offers robust task management features including recurring tasks and Kanban support.
  • Seamless integration with RingCentral VoIP services.

Compared to Slack

Combines chat, video, tasks, and file sharing in one platform. compared to Slack
Initial learning curve due to the breadth of features. unlike Slack
Samepage

Samepage

Freemium Backup & Sync Web Application

Samepage is a comprehensive team collaboration platform that integrates project management, task management, real-time communication, and file sharing into a single, intuitive interface. Designed to streamline teamwork, it helps teams stay organized, communicate effectively, and manage projects efficiently, regardless of location.

Unique Features

  • Consolidates multiple collaboration tools into a single platform.
  • Contextual communication linked to projects and tasks.
  • Flexible project and task management features (Kanban, Gantt, checklists).

Compared to Slack

Consolidates multiple collaboration tools into a single platform. compared to Slack
May lack the depth of features compared to specialized applications. unlike Slack
Mattermost

Mattermost

Open Source Development Team Communication

Mattermost is an open-source, self-hosted platform for secure team collaboration, offering a Slack-alternative with emphasis on data control, privacy, and customizability. It provides a range of communication and project management tools for distributed and technical teams.

Unique Features

  • Complete control over data with self-hosting.
  • Open-source and highly customizable.
  • Strong focus on security and privacy.

Compared to Slack

Complete control over data with self-hosting. compared to Slack
Requires technical expertise for installation and maintenance. unlike Slack
Wire

Wire

Free Photos & Graphics Messaging

Wire is a secure, cross-platform messaging and collaboration client offering end-to-end encryption by default for all communication types including messaging, voice and video calls, and file sharing across desktop and mobile devices.

Unique Features

  • Strong, always-on end-to-end encryption for all communication.
  • Available on multiple platforms including desktop and mobile.
  • Open source code for transparency and security auditing.

Compared to Slack

Strong, always-on end-to-end encryption for all communication. compared to Slack
Smaller user base compared to some mainstream alternatives. unlike Slack
Ora

Ora

Commercial Business & Commerce Web Application

Ora is a comprehensive, real-time project management platform designed for teams of all sizes. It offers a flexible and intuitive interface, enabling teams to manage tasks, track time, collaborate effectively, and streamline workflows within a single workspace. From agile methodologies to traditional project planning, Ora provides the tools necessary to enhance productivity and achieve project goals.

Unique Features

  • Comprehensive feature set covering task management, time tracking, and collaboration.
  • Supports multiple project management methodologies (Kanban, Gantt, Sprints).
  • Real-time collaboration and communication tools enhance team connectivity.

Compared to Slack

Comprehensive feature set covering task management, time tracking, and collaboration. compared to Slack
Steeper learning curve compared to simpler project management tools. unlike Slack
Rocket.Chat

Rocket.Chat

Open Source Office & Productivity Team Communication

Rocket.Chat is a comprehensive free and open-source team communication platform, offering real-time chat, audio/video conferencing, screen sharing, and file sharing. Designed for flexibility, it can be self-hosted on-premises for maximum control and customization, making it ideal for organizations prioritizing data privacy and security.

Unique Features

  • Open source and free to use.
  • Excellent control over data and privacy with self-hosting.
  • Wide range of features including chat, audio/video, screen sharing.

Compared to Slack

Open source and free to use. compared to Slack
Self-hosting requires technical expertise. unlike Slack
eXo Platform

eXo Platform

Commercial Business & Commerce Web Application

eXo Platform is an open-source enterprise social collaboration platform designed to connect employees, share knowledge, and improve communication and productivity within organizations. It offers a comprehensive suite of tools including social networking, document management, project management, and real-time communication features.

Unique Features

  • Comprehensive suite of collaboration tools in a single platform.
  • Open-source nature allows for high customizability and control.
  • Strong integration capabilities with existing business applications.

Compared to Slack

Comprehensive suite of collaboration tools in a single platform. compared to Slack
Requires technical expertise for deployment, customization, and maintenance (for self-hosted). unlike Slack
Threema

Threema

Commercial Social & Communications Instant Messaging

Threema is a secure and private messaging application that prioritizes user anonymity and data protection. It offers end-to-end encryption for all messages, calls, and files, requiring no phone number registration to enhance privacy.

Unique Features

  • Strong end-to-end encryption for all communication types.
  • Does not require a phone number for registration, enhancing anonymity.
  • Focused on user privacy with minimal data collection.

Compared to Slack

Strong end-to-end encryption for all communication types. compared to Slack
Requires a one-time purchase. unlike Slack
Matrix.org

Matrix.org

Open Source Development Messaging

Matrix is an open network for secure, decentralized real-time communication. It provides a flexible protocol for developers to build collaborative applications like instant messaging, VoIP, and video conferencing, enabling seamless communication across different service providers.

Unique Features

  • Decentralized architecture increases resilience and prevents single points of failure.
  • Strong emphasis on end-to-end encryption for enhanced privacy and security.
  • Open standard and protocol fosters innovation and avoids vendor lock-in.

Compared to Slack

Decentralized architecture increases resilience and prevents single points of failure. compared to Slack
User experience can vary depending on the selected client and server. unlike Slack
Let's Chat

Let's Chat

Open Source Office & Productivity Team Chat

Let's Chat is a self-hosted, open-source messaging application built for small to medium-sized teams. It provides persistent chat rooms, private messaging, and collaboration tools, prioritizing ease of deployment and control over your data.

Unique Features

  • Self-hosted for data control and privacy.
  • Open source and free to use.
  • Relatively easy to deploy and manage.

Compared to Slack

Self-hosted for data control and privacy. compared to Slack
Lacks advanced features found in commercial platforms. unlike Slack
Whaller

Whaller

Freemium Business & Commerce Web Application

Whaller is a secure and private team collaboration platform that enables organizations to create their own internal social networks, ensuring data privacy and control away from public social media platforms. It offers a comprehensive suite of tools for communication, file sharing, task management, and project organization.

Unique Features

  • Strong focus on data privacy and security.
  • Ad-free environment with no data exploitation.
  • Comprehensive suite of collaboration tools (chat, tasks, files, video).

Compared to Slack

Strong focus on data privacy and security. compared to Slack
User interface might have a learning curve for some users. unlike Slack
Hibox

Hibox

Freemium Office & Productivity Web Application

Hibox is an all-in-one collaboration platform combining task management, team chat, video conferencing, and integrated file sharing. Designed for businesses of all sizes, it streamlines communication and project workflows within a single intuitive interface, eliminating the need for multiple disparate tools.

Unique Features

  • Integrated platform for chat, tasks, and video calls.
  • Seamless conversion of chat messages into actionable tasks.
  • Supports integration with popular cloud storage services.

Compared to Slack

Integrated platform for chat, tasks, and video calls. compared to Slack
Task management features may be basic for complex projects. unlike Slack
Conversations

Conversations is a privacy-focused, open-source XMPP/Jabber client for Android. It offers robust end-to-end encryption using OMEMO and OTR, supports modern XMPP extensions, and provides a secure, decentralized messaging experience without relying on proprietary servers. It's an ideal choice for users prioritizing security and open standards.

Unique Features

  • Strong end-to-end encryption (OMEMO, OTR).
  • Decentralized, open-source architecture.
  • Adherence to open XMPP standards.

Compared to Slack

Strong end-to-end encryption (OMEMO, OTR). compared to Slack
Requires contacts to also use XMPP clients for seamless communication. unlike Slack
TribeScale

TribeScale

Free File Sharing Web Application

TribeScale is an all-in-one platform designed to streamline team coordination, encompassing communication, goal management, task delegation, and progress tracking to enhance productivity and alignment within organizations.

Unique Features

  • Integrates communication, goals, and tasks in one platform.
  • Goal-centric approach helps maintain focus.
  • Clean and intuitive user interface.

Compared to Slack

Integrates communication, goals, and tasks in one platform. compared to Slack
May lack advanced features found in dedicated tools. unlike Slack
Priority Matrix

Priority Matrix

Commercial Business & Commerce Project Management

Priority Matrix is a dynamic project and task management solution inspired by the Eisenhower Matrix, designed to help individuals and teams effectively prioritize work based on urgency and importance. Available across multiple platforms, it facilitates streamlined workflows and enhanced productivity.

Unique Features

  • Strong visual prioritization using the Eisenhower Matrix.
  • Comprehensive task management features with detailed customization.
  • Robust collaboration tools for team projects.

Compared to Slack

Strong visual prioritization using the Eisenhower Matrix. compared to Slack
Potentially steeper learning curve for advanced features. unlike Slack
Yammer

Yammer

Commercial Social & Communications Enterprise Social Network

Yammer is an enterprise social networking service designed for private communication within organizations, fostering open collaboration and knowledge sharing across departments and teams.

Unique Features

  • Promotes open communication and knowledge sharing.
  • Strong integration within the Microsoft 365 suite.
  • Provides a familiar social media-like interface.

Compared to Slack

Promotes open communication and knowledge sharing. compared to Slack
Success heavily relies on user adoption and engagement. unlike Slack
Flock

Flock

Freemium Business & Commerce Web Application

Flock is a comprehensive communication and collaboration platform designed for teams. It streamlines workflow and enhances productivity through integrated messaging, project management tools, and seamless file sharing within a secure environment.

Unique Features

  • Integrated task management and shared calendars within the chat interface reduce context switching.
  • Extensive third-party integrations consolidate workflows and connect existing tools.
  • Strong emphasis on security with encrypted chat.

Compared to Slack

Integrated task management and shared calendars within the chat interface reduce context switching. compared to Slack
Performance can vary depending on network conditions. unlike Slack
Grape

Grape

Commercial Office & Productivity API Development Framework

Grape is a powerful and flexible API framework for Ruby, simplifying the development of REST-like APIs. Designed to run on Rack, it seamlessly complements existing web frameworks like Rails or Sinatra, providing a clean domain-specific language (DSL) for building robust and well-structured APIs.

Unique Features

  • Simple and expressive DSL for API definition.
  • Excellent integration with Rails and Sinatra.
  • Strong support for API versioning.

Compared to Slack

Simple and expressive DSL for API definition. compared to Slack
Requires external tools for automatic documentation generation. unlike Slack
Fleep

Fleep

Freemium Office & Productivity Web Application

Fleep is a business communication platform designed for teams of all sizes, facilitating collaboration within and across organizations through a combination of chat, task management, and file sharing.

Unique Features

  • Seamless integration of chat and task management.
  • Persistent and easily searchable conversation history.
  • Effective file sharing with a dedicated file list.

Compared to Slack

Seamless integration of chat and task management. compared to Slack
Learning curve for users accustomed to separate tools. unlike Slack
Jostle

Jostle

Commercial Business & Commerce Intranet Software

Jostle is a modern intranet and employee engagement platform designed to connect, align, and engage every employee. It offers a central hub for communication, knowledge sharing, and collaboration, fostering a strong company culture and improving internal communication.

Unique Features

  • Excellent for improving employee engagement and company culture.
  • Intuitive and user-friendly interface, easy to learn and navigate.
  • Strong mobile application for connecting deskless workers.

Compared to Slack

Excellent for improving employee engagement and company culture. compared to Slack
Task management features may be basic for complex project needs. unlike Slack
Zulip

Zulip

Open Source Development Web Application

Zulip is a powerful open-source group chat application designed for team collaboration. It uniquely structures conversations around topics, enabling users to easily catch up on important discussions and manage information overload. Zulip facilitates secure communication with integrated file sharing and various integrations.

Unique Features

  • Excellent at organizing complex conversations with its unique topic-based structure.
  • Helps in managing information overload compared to flat chat systems.
  • Open-source and offers a self-hosting option for greater data control and privacy.

Compared to Slack

Excellent at organizing complex conversations with its unique topic-based structure. compared to Slack
The topic-based model may require an initial adjustment period for new users. unlike Slack
kune

kune

Open Source File Sharing Social Networking

kune is a distributed social network and collaboration platform designed for privacy and freedom of speech. It offers features like group chat, file sharing, task management, and real-time collaboration, operating on a decentralized architecture.

Unique Features

  • Decentralized architecture provides increased privacy and resilience.
  • Emphasis on freedom of speech and censorship resistance.
  • Ad-free experience.

Compared to Slack

Decentralized architecture provides increased privacy and resilience. compared to Slack
Adoption may be lower than mainstream platforms, potentially limiting network effect. unlike Slack
Flowdock

Flowdock

Commercial Development Web Application

Flowdock is a collaborative team workspace combining group chat, inbox, and integrated tool notifications. It streamlines communication and information flow for agile teams, connecting conversations with project management and code development tools like GitHub, Jira, and Trello.

Unique Features

  • Unique 'Chat + Stream' approach consolidates communication and external tool notifications.
  • Strong suite of integrations, particularly for development and project management tools.
  • Effective for agile and technical teams who need to stay informed about activity across their toolchain.

Compared to Slack

Unique 'Chat + Stream' approach consolidates communication and external tool notifications. compared to Slack
Interface visuals feel slightly less modern compared to some competitors. unlike Slack
Dialog Messenger

Dialog Messenger

Free Personal Office & Productivity Web Application

Dialog Messenger is a robust, feature-rich enterprise messaging solution designed for businesses prioritizing security, privacy, and control. Available for both private server deployment and cloud hosting, it facilitates secure text, voice, and video communication across multiple devices, enabling seamless collaboration and real-time interaction within organizations.

Unique Features

  • Strong focus on security and privacy with encryption and self-hosting options.
  • Provides complete control over data for compliance and sovereignty.
  • Includes essential communication features like text, voice, and video chat.

Compared to Slack

Strong focus on security and privacy with encryption and self-hosting options. compared to Slack
Implementation and maintenance of self-hosted solutions can require technical expertise. unlike Slack
Wickr

Wickr

Free Social & Communications Instant Messaging

Wickr is a secure and private instant messaging platform designed for individuals and teams who prioritize confidentiality. It offers end-to-end encryption, self-destructing messages, and a focus on anonymity to ensure that conversations and shared data remain protected.

Unique Features

  • Strong end-to-end encryption for all communication types.
  • Self-destructing messages offer control over data lifespan.
  • Emphasis on user anonymity and minimal metadata collection.

Compared to Slack

Strong end-to-end encryption for all communication types. compared to Slack
User base might be smaller compared to mainstream messengers. unlike Slack
Gitter

Gitter

Freemium Office & Productivity Web Application

Gitter is a free and open-source instant messaging and chat service designed specifically for developers and users of GitHub projects. It provides real-time communication within the context of software development teams and communities.

Unique Features

  • Excellent integration with GitHub.
  • Tailored for developer communication with Markdown support.
  • Searchable archives of conversations.

Compared to Slack

Excellent integration with GitHub. compared to Slack
Feature set is primarily focused on text-based chat. unlike Slack
Hack Chat

Hack Chat

Open Source Social & Communications Web Application

Hack Chat is a refreshingly simple and open-source chat application designed for immediate, no-nonsense communication. Forget complex sign-ups and cluttered interfaces; Hack Chat gets you talking instantly in various channels.

Unique Features

  • Extremely easy to use, requires no account creation.
  • Minimalist and distraction-free interface.
  • Open source, allowing for transparency and community contributions.

Compared to Slack

Extremely easy to use, requires no account creation. compared to Slack
Lacks advanced features like file sharing, voice/video calls. unlike Slack
Hubgets

Hubgets

Commercial Business & Commerce Web Application

Hubgets transforms team communication with integrated chat, voice, and video, fostering collaboration and boosting productivity through a unified platform for messaging, file sharing, and project management.

Unique Features

  • Unified platform for chat, voice, and video.
  • Effective threaded conversations for organized discussions.
  • Built-in file manager simplifies document handling.

Compared to Slack

Unified platform for chat, voice, and video. compared to Slack
User interface could be more intuitive. unlike Slack
Stackfield

Stackfield

Freemium Business & Commerce Web Application

Stackfield is a comprehensive team collaboration platform designed for businesses requiring high levels of security. It integrates project management, task tracking, document sharing, group chat, and file management, all protected by end-to-end encryption. This ensures sensitive business data remains confidential and secure while enabling seamless team productivity.

Unique Features

  • High level of data security through end-to-end encryption for all data.
  • Integrates multiple collaboration tools (chat, tasks, files) into one platform.
  • Robust project management features including Kanban and Gantt views.

Compared to Slack

High level of data security through end-to-end encryption for all data. compared to Slack
The extensive security features might lead to a slightly steeper learning curve for some users. unlike Slack

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