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

Fast.com
Speedtest.net
SpeedOf.Me
Testmy.net
nPerf
Speed Test by Cloudflare
speedtest-cli
Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly.

Which is more popular?
Based on our record, Mattermost should be more popular than LibreSpeed. 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 | github.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.
No analysis of LibreSpeed yet.
Walkthroughs and reviews on video.
Mattermost - An Open Source, Self Hosted, Slack Chat Alternative
More videos
Self-host your own internet speed test with LibreSpeed!
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Mattermost and LibreSpeed. 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.
We have no reviews of LibreSpeed yet. Be the first one to post
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 / about 1 month 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 / 6 months ago
I run internetspeedtest.net, a free, no-signup speed test built on the open-source LibreSpeed engine. - Source: dev.to / 19 days ago
Try hosting a DIY speed test on a cloud server (like Google colab or the free oracle instances or whatever): https://github.com/librespeed/speedtest. - Source: Hacker News / about 3 years ago
It should be DIA. They provide the internet connection to the company since 2 decades and it's a very small ISP, so it's very vague in terms of contract. Iperf was giving me very terrible results with TCP, UDP was giving me a couple of... Source: over 3 years ago
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