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Slack

Team messaging, channels and app integrations.

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Software
Productivity & Collaboration
Freemium
Countries served
Worldwide
Languages
English
Last reviewed
2026-10-31

Overview

Slack is a cloud-based communication platform designed to streamline internal messaging and collaboration for organizations of all sizes. It replaces traditional email threads with organized, channel-based discussions that integrate with a wide ecosystem of third-party business tools. The service provides a centralized hub for teams to share files, coordinate projects, and automate routine operational tasks.

Products and services

  • Channel-based group messaging
  • Direct messaging for one-on-one communication
  • App directory for third-party software integrations
  • File storage and document sharing
  • Slack Huddles for audio and video conferencing
  • Slack Connect for cross-organizational collaboration
  • Workflow Builder for automation

Business problems addressed

  • Over-reliance on cluttered email inboxes
  • Difficulty centralizing team communications
  • Information silos between different departments
  • Fragmentation of project tools and data
  • Inefficiency in managing recurring operational tasks

Key benefits and capabilities

  • Customizable notifications and status indicators
  • Advanced message searching and archiving
  • End-to-end integration with enterprise software
  • Real-time audio and video screen sharing
  • Granular permissions and security controls
  • Public and private channel management
  • Custom emoji and reaction support

Frequently asked questions

Can Slack integrate with other software tools?
Yes, Slack offers an extensive app directory that allows users to connect with thousands of third-party tools such as Google Drive, Jira, and Salesforce.
Is Slack suitable for large organizations with high security needs?
Slack provides enterprise-grade security features, including data encryption, compliance certifications, and administrative controls to manage organizational data access.
Does Slack offer a free version for new businesses?
Slack offers a free plan that provides limited message history and integration options, which is often used by startups and small teams to begin operations.

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