Open Sourcers Race to Build Better Versions of Slack | WIRED
REAL-TIME CHAT APPLICATIONS have been around since the earliest days of the Internet. Yet somehow, despite the enormous number of options, the workplace chat app Slack has surged in popularity. After just two years in business, the company now boasts 675,000 paid users, 2.3 million users overall, and annual revenue of more than $64 million. Slack’s growth has shown that even seemingly ancient technologies like chat can still be improved, particularly when it comes to using instant messaging for work. But Slack has the limitations that all proprietary cloud apps do. Your data lives on someone else’s servers. Customization is limited. You have to trust that Slack the company will make the changes you want to Slack the app and not make changes you don’t want. Open sourcers are trying to beat Slack at its own game by providing features it doesn't yet have. That’s why the open source community has been racing to build better versions of Slack, even though countless open source chat apps exist already. In fact, Slack alternative Mattermost and Rocket.chat topped the Black Duck Rookies of the Year report, an annual list of new open source projects that attract the most developers and produce the most code.