The user interface is quite good and you can choose to customize the look of it by creating your own theme packages. In fact, we are considering to use it for our internal team communication at It’s FOSS.Using end-to-end encryption with Rocket.Chat is a one-click task as well. Rocket.Chat is also an impressive Slack alternative that you can choose for your work or organization.
Inline image, video, and tweet previewsĮlement is a free and open-source software instant messaging client implementing the Matrix protocol.
With 120,000 words of developer documentation, a high quality code base, and a welcoming community, it’s easy to extend or tweak Zulip. Zulip is 100% open source software, built by a vibrant community of hundreds of developers from all around the world. Zulip has modern apps for every major platform, powered by Electron and React Native. With Zulip, you can catch up on important conversations while ignoring irrelevant ones. Zulip combines the immediacy of real-time chat with an email threading model.
You can try the hosted pro version (Desktop/Mobile) for free up to 30 days but for a private hosting deployment, you need to contact them. You would need to opt for the Enterprise-focused premium plan if you want a custom deployment for Wire. Modern day collaboration meets the most advanced security and superior user experience. It is indeed a useful open-source solution that focuses on privacy while giving a premium UX for users looking to switch from Slack. Wire offers the most comprehensive collaboration suite featuring messenger, voice, video, conference calls, file-sharing, and external collaboration – all protected by the most secure end-to-end-encryption.
Use the features you like, for example, file sharing, real-time group chat, and webhooks, with full access to source code. It’s written in Golang and React and runs as a single Linux binary with MySQL or PostgreSQL. Mattermost is the leading open source collaboration platform with a thriving community. 6 Best Slack Alternatives on Linux 2021 Mattermost We’ll discuss 6 Slack Alternatives in this article, which will help you choose one of them. Slack has cross-platform support to use it on Windows, Linux, iOS, macOS, and Android. It is used to organize teams, discuss projects, and communicate with co-workers. Some may call it a glorified IRC but that doesn’t impact its popularity. Slack is one of the most popular team communication services for work. In this article, we’ll discuss about the 6 best slack alternatives on Linux machine.