Popular: Data updated October 27, 2026

Categories

Internet1,356
Communication321
Audio & video898
Graphics & design539
Office & productivity1,124
Developer tools3,134
AI tools529
Security & privacy385
System tools3,114
Games523
Education & science239
Network & IT284

Slack Chat API CLI alternatives

Command-line interface for Slack Web API

Open CLI Collective Chat & messaging

12 Windows apps in the same category as Slack Chat API CLI, ranked by what they have in common and by popularity.

  • Signal

    Signal is an encrypted communications application.

    Open source 8.32.0 3.4M ↓ ★ 16.6K chat, messaging
  • Telegram Desktop

    A cloud-based mobile and desktop messaging app with a focus on security and speed.

    Open source 7.3.3 1M ↓ ★ 33.3K chat, messaging
  • Slack

    Slack brings the team together, wherever you are.

    Proprietary 4.52.182 9.8M ↓ chat, slack
  • Discord

    Your Place to Talk and Hang Out

    Proprietary 1.0.9266 882.4K ↓ chat
  • Rocket.Chat

    Rocket.Chat is the leading open source team chat software solution. Free, unlimited and completely customizable with on-premises and SaaS cloud hosting.

    Open source 4.18.5 973K ↓ ★ 1.7K chat
  • Viber

    Free and secure calls and messages to anyone, anywhere.

    Proprietary 29.1.0.0 259.3K ↓ chat
  • Zulip

    Desktop client for Zulip, an open source team chat application.

    Open source 5.13.2 97.4K ↓ ★ 992 chat
  • Pidgin

    Pidgin is a universal chat client, allowing you to consolidate all your different messaging apps into a single tool.

    Open source 2.14.14 175.4K ↓ chat
  • mIRC

    IRC (Internet Relay Chat) client

    Proprietary 7.83 36.5K ↓ chat, messaging
  • Session

    Onion routing based messenger

    Open source 1.18.3 17.3K ↓ ★ 596 chat
  • Mumble (client)

    Low-latency and high quality voice chat primarily intended for use while gaming.

    Open source 1.5.939 49.9K ↓ ★ 8.4K chat, messaging
  • Ferdium

    Messaging app for WhatsApp, Slack, Telegram, HipChat, Hangouts and many many more.

    Open source 7.2.3 44.8K ↓ ★ 4.7K messaging

Comparison

AppLicenceVersionUpdatedGitHub starsChocolatey downloads
Slack Chat API CLI Open source 3.2.74 October 2, 2026 21 —
Signal Open source 8.32.0 October 20, 2026 16.6K 3.4M
Telegram Desktop Open source 7.3.3 October 22, 2026 33.3K 1M
Slack Proprietary 4.52.182 October 20, 2026 — 9.8M
Discord Proprietary 1.0.9266 October 26, 2026 — 882.4K
Rocket.Chat Open source 4.18.5 October 23, 2026 1.7K 973K
Viber Proprietary 29.1.0.0 October 14, 2026 — 259.3K
Zulip Open source 5.13.2 September 27, 2026 992 97.4K
Pidgin Open source 2.14.14 January 23, 2025 — 175.4K
mIRC Proprietary 7.83 November 22, 2025 — 36.5K
Session Open source 1.18.3 October 26, 2026 596 17.3K
Mumble (client) Open source 1.5.939 October 26, 2026 8.4K 49.9K
Ferdium Open source 7.2.3 September 8, 2026 4.7K 44.8K