These projects hope to provide not just a free alternative to the popular chat app but beat Slack at its own game by providing features it doesn't have.
Why Slack is inappropriate for open source communications | Dave Cheney
Full disclosure: my employer makes a Slack alternative. All my concerns about the use of Slack type chat services apply equally to its competitors, including my employer’s.
Please don't use Slack for FOSS projects
This blog post was published on November 1, 2015. It might be out of date, have broken images or links, or simply contain bad ideas and opinions that didn't stand the test of time. Please read generously!
Our Experience With Slack
Back in April, all was well with our community of busy adults learning to code. We were communicating using Gitter.im, a GitHub based chatroom system. And yet every day, someone would ask me “Why aren’t your campers using Slack?” I’d considered Slack...
Gchat Was the Future of Messaging, But Google Didn’t Know What It Had
Everyone has been talking about Slack lately. The chat app, which is primarily aimed at offices and productivity, is simple, well designed, fun to use,...
How Slack and Discord became tools for worker revolt
Lots of tech worker movements got their start on Slack and Discord, even if the creators of those apps would rather not talk about it.
We're on Slack! Join us! - Creative Commons
Today we’re excited to announce that we have migrated our real time communications from IRC to Slack.
The Psychology of a Billion-Dollar Enterprise App: Why Is Slack So Habit-Forming?
Slack isn’t just another office collaboration app. The company has been called, “the fastest-growing workplace software ever.” Recent press…
Introducing npm i chat – One codebase, every chat platform - Vercel
Chat SDK is now open source and available in public beta. It's a TypeScript library for building chat bots that work across Slack, Microsoft Teams, Google Chat, Discord, GitHub, and Linear — from a single codebase.
GREG ISENBERG on Twitter / X
I think the most interesting thing about Jack Dorsey's "Slack killer" is the idea around shared compute.I haven't seen people talk about it so here are my thoughts FWIW:Open models got good, close enough to the paid frontier stuff to run for real. But the strongest ones need… https://t.co/b5PBgYjAGL— GREG ISENBERG (@gregisenberg) July 25, 2026
It’s time to rethink Open Source
Why developers give away valuable work for free — and what can be done to take that money back.
Extend Slack with Node.js
It is 2016 and Slack is the new e-mail. For many distributed teams or companies like Auth0, Slack has become the default communication…
A big shout-out to open source
Yoast lives and breathes open source. Here Joost explains why and more. Find out who Joost's all-time open source hero is!
Embrace Open Source, For the Good of Nerdmanity | Fortune
More businesses are willing to use open source software for key projects.
Slack is work chat's runaway train, raises $200M at $3.8B | TechCrunch
The Slack rocketship won't slow down. The business messaging startup has raised $200 million at a $3.8 billion post-money valuation, the company confirms
Slack Blog
Welcome to the official Slack blog. Explore our latest product news, research on the future of work, and tips for using Slack to be more productive.
