
Slack
Rocket.Chat
Discord
Element.io
Telegram
Zulip
Microsoft Teams
Mattermost is an open source alternative to Slack.

HackerRank
LeetCode
CodeSignal
Codility
HackerEarth
AlgoExpert.io
Codewars
Coderbyte is a place built for anyone to practice and perfect their programming skills.

Which is more popular?
Based on our record, Mattermost should be more popular than Coderbyte. It has been mentioned 75 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | mattermost.com | coderbyte.com |
| Pricing | — | |
| Company | Startup from the United States | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Mattermost is recommended for organizations that prioritize data privacy and security, need extensive customization options, or are looking to integrate a collaboration tool into existing systems. It is also suitable for teams in regulated industries requiring on-premises solutions.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Mattermost - An Open Source, Self Hosted, Slack Chat Alternative
More videos
Coderbyte Tutorial Video for Entrance Test | Frontend Engineering Program | GreyAtom
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Mattermost and Coderbyte. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Mattermost is an open-source platform that enables safe collaboration in self-hosted chat programs featuring file sharing, search, and integrations; groups and businesses can use it as an internal chat.
Mattermost uses monolithic architecture, which is tightly coupled and complex to understand. It restricts the scalability of the collaboration tool, which is a limitation for growing businesses. In that case,...
Below is a curated list of the 12 best self-hosted messaging apps like MirrorFly, Mattermost, Zulio, Nextcloud, and Rocket.chat that offer unique collaboration features and lets you take full control of your data.
Coderbyte is a leading platform for technical assessment and interview preparation, providing coding challenges and expert videos to aid in the evaluation and improvement of developer skills.
Both LeetCode and Coderbyte prepare developers for interviews, but Coderbyte has a subscription option for employees to use when assessing potential candidates.
Coderbyte is an ideal Scratch alternative if you need a challenging coding platform. While you can create games and animations with Coderbyte, the platform primarily aims to improve your coding skills.
Recommendations tracked on public social media and blogs since March 2021.


The amazing thing is that there is almost always an open-source alternative that is 10x better in many ways, in the case of slack https://mattermost.com/ I'm looking forward for AI to make it very easy to deploy your own tools and walk... - Source: Hacker News / 29 days ago
How does it compare to MatterMost [1]? [1] https://mattermost.com/. - Source: Hacker News / 4 months ago
Slack's value is real, especially for cross-company conversations with clients and vendors. But for internal communication in companies that care about data residency or audit requirements, Mattermost is a credible self-hosted... - Source: dev.to / 5 months ago
The resources others have shared here are great. Doing coding challenges can also be helpful (I find it helpful, anyway). Something like CoderByte might be useful. Source: over 3 years ago
Technical Assessments & Interviews FOR DEVELOPERS Improve your coding skills. The industry’s #1 website for technical interview prep, coding challenges, and expert videos. Try a free challenge → or Learn more FOR ORGANIZATIONS Interview... - Source: dev.to / over 3 years ago
Https://coderbyte.com has a free course on DSA. Source: almost 4 years ago
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Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
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Practice and level up your development skills and prepare for technical interviews.
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Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
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CodeSignal is the leading assessment platform for technical hiring.
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