Slack GitHub Repositories (2026) · Open Source Tools

Macro is a unified workspace for teams: email, chat, docs, tasks, agents, calls, and CRM — @-linked together with shared AI memory.

Build your own AI SRE agents. The open source toolkit for the AI era.

Infrastructure for coding agents

Open source agentic operating system

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Self-hosted notification infrastructure for product notifications. One notify() call handles email, SMS, push, etc, with preferences, quiet hours, retries, fallback, scheduling, workflows, and delivery logs built in.

SRE Agent - CNCF Sandbox Project

Prometheus Alertmanager

An AI Assistant that’s easy to setup, does your work 24/7, knows your preferences and gets better over time.

The agentic memory & message gateway for deepseek-harness

The open-source, multi-agent alternative to Claude Tag. @ any agent, wherever work happens, they work alongside your team, learning as they go.

dbt enables data analysts and engineers to transform their data using the same practices that software engineers use to build applications.

Native, pure C++, Slack client for Linux, macOS and Windows. Lightweight alternative to the official Electron app.

Slack CLI for humans and AI agents. Read, send, search and reply across one or many Slack workspaces from the terminal. No Slack app needed.

Open Souce IM with AI powered live-chat, email, ticket support, omni-channel customer service，alternative to slack + zendesk/intercom/hubspot/ada/decagon/sierra

Save or export your private and public Slack messages, threads, files, and users locally without admin privileges.

A blazingly fast Slack TUI

Your work, already underway. A personal AI assistant for your job: mail, chats and tickets become tasks, the agents you already use (Claude Code, Codex, Gemini) do the work, and nothing goes out until you approve. Open source, runs on your machine.

Create, develop, and deploy Slack apps from the command-line ✨

Next generation noIM application in your own workspace, not only another Slack/Discord/Rocket.chat