
Toggl
Harvest
Hubstaff
Time Doctor
TimeCamp
RescueTime
Everhour
Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.

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

Which is more popular?
Mattermost might be a bit more popular than Clockify. We know about 76 links to it since March 2021 and only 57 links to Clockify.
Website, pricing, platforms and company facts side by side.
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| Website | clockify.me | mattermost.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Serbia · 2017 | Startup from the United States |
| Listed in |
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Clockify is highly recommended for freelancers, small to medium-sized businesses, and remote teams who need efficient time management without financial constraints. Project managers, consultants, and anyone involved in billing or client work would find it particularly beneficial.
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.
Walkthroughs and reviews on video.
Quick Features Overview
More videos
Mattermost - An Open Source, Self Hosted, Slack Chat Alternative
More videos
How often each product is chosen within a category, 0–100% relative to the other.


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


Looking for a different time tracker? These guides compare Teetrack head-to-head with popular tools like Toggl, Clockify, and Harvest — covering pricing, billing features, data export, and how migration works. Each...
For small businesses, the best tool depends on the level of visibility needed. Mera Work is a strong choice if the business needs complete work visibility. Clockify is useful for basic time tracking and timesheets....
As a comprehensive tool, Clockify does many things. It has multi-platform time tracking, timesheet and time off management, scheduling, and expense tracking features.
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.
Recommendations tracked on public social media and blogs since March 2021.


Check out https://clockify.me/ It's my go-to for hourly "clock your hours" work. - Source: Hacker News / over 2 years ago
Clockify - Time tracker and timesheet app that lets you track work hours across projects. Unlimited users, free forever. - Source: dev.to / over 2 years ago
Clockify.me to timetrack my activities. Source: over 3 years ago
Mattermost | Remote (US and Canada) | FT | Multiple roles Mattermost (https://mattermost.com) is an open-core collaboration and workflow automation platform for air-gapped, on-prem and private clouds. Our customers are in defense,... - Source: Hacker News / 15 days ago
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 2 months ago
How does it compare to MatterMost [1]? [1] https://mattermost.com/. - Source: Hacker News / 5 months ago
When comparing Clockify and Mattermost, you can also consider the following products.

Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Compare Toggl to Clockify or Mattermost:


Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Compare Harvest to Clockify or Mattermost:

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
Compare Rocket.Chat to Clockify or Mattermost:

Integrated time tracking, productivity metrics, and payroll for your distributed team.
Compare Hubstaff to Clockify or Mattermost:

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
Compare Discord to Clockify or Mattermost: