Slack

by Salesforce · Chat & video calls

FreemiumWindowsMacLinux

Team messaging with channels, huddles and app integrations.

Official download from slack.com (opens in a new tab)

Opens slack.com, Salesforce's own site. No mirror, no bundle.

Overview

What is Slack?

Slack organises work conversations into channels and connects to thousands of apps. The free plan limits message history; paid plans keep everything.

Key features

  • Channels and threads
  • Huddles for quick calls
  • Thousands of app integrations
  • Workflow automation

Best for

  • Workplace chat
  • Open-source and startup communities
  • Connecting team tools

Included in starter kits

Install

How to install Slack

  1. 1Open the official Slack download page on slack.com.
  2. 2Pick the build for your system (Windows, Mac, Linux; check x64, ARM or Apple silicon where offered).
  3. 3Run the installer and read each screen; decline anything you did not ask for.
  4. 4Keep it updated from the app's own updater or your package manager.

Install from the command line

  • Windows · winget

    winget install --id SlackTechnologies.Slack -e --source winget

  • Mac · Homebrew

    brew install --cask slack

  • Linux · Flatpak (Flathub)

    flatpak install flathub com.slack.Slack

Package IDs checked against the public winget, Homebrew and Flathub repositories on 1 Nov 2026. Build a script for several apps.

Safety

Download Slack safely

  • Check the domain

    The real download lives on slack.com. Look-alike domains and search ads are the most common trap.

  • Skip mirrors

    Download portals can wrap installers in adware or old versions. You never need them for this app.

  • Verify if you can

    If the publisher lists a checksum, compare it with our in-browser checker before running the file.

  • Watch the installer

    Untick extras, browser changes or trials you did not ask for.

Open the checksum checker

Alternatives

Slack alternatives

Other chat & video calls apps, closest platform match first.

All chat

FAQ

Slack questions

Where can I download Slack safely?

Download Slack only from Salesforce's official site at slack.com. Avoid mirror and "download portal" sites, which can bundle extra software with the installer.

Is Slack free?

Slack has a free plan with limits, and paid plans or upgrades for more features. Check slack.com for current pricing.

Does Slack work on Windows, Mac and Linux?

Slack is available for Windows, Mac, Linux. Check Salesforce's download page for exact system requirements and whether your processor (x64, ARM or Apple silicon) is supported.

Can I install Slack from the command line?

Yes, with winget on Windows (winget install --id SlackTechnologies.Slack -e); Homebrew on Mac (brew install --cask slack); Flatpak on Linux (flatpak install flathub com.slack.Slack). Package managers fetch the publisher's files and make updates easy.

What are good alternatives to Slack?

See the alternatives section on this page and the full chat & video calls list on AltFTool, which shows each app's licence and platforms side by side.