Best open source

Zeitguru alternative

Kimai is the #1 open-source time-tracking alternative for Zeitguru. Learn how Kimai measures up to Zeitguru, so you can choose the right solution for your business.

Kimai vs Zeitguru: Which time tracking software fits your team best in 2026?

Kimai is the #1 open-source time-tracking solution designed for teams and businesses seeking flexibility and control over their time tracking infrastructure. Discover why more than 7000 companies worldwide trust Kimai for their time tracking needs and find out how it compares to Zeitguru’s offerings. Whether you’re evaluating a new time tracking app, analyzing Zeitguru pricing options, or planning a Zeitguru migration, Kimai provides a compelling alternative with superior features and cost savings.

Choosing the right time tracking software can make a huge difference in productivity, transparency, and billing accuracy of a freelancer, an agency, or a business owner managing a big team.

Reporting feature

When selecting a time tracking tool, most users consider:

  • Features: Does it cover everything from tracking and reporting to invoicing and project management?
  • Price: Is it affordable (or even free) for the size of your team?
  • Flexibility: Can it adapt to your current workflow, integrations, and tech stack?
  • Accessibility: Does it support both desktop and mobile platforms, and can it be self-hosted or cloud-based?
  • Scalability: Will it still fit your needs as your business grows?

The year 2026 also brings focus on data privacy, automation, and team transparency in time management tools. At the same time the market offers a range of solutions for every use case, from solopreneurs to large enterprise teams, and you can always find the solution that best fits your needs.

Let’s explore the best time tracking tools for 2026 and see how Kimai compares with Toggl Track — two popular choices among professionals and successful teams worldwide.

Kimai features most used

Not all time tracking tools are created equal. The best solutions for agencies offer a specialized set of features to streamline your workflows.

Features

JSON API

Featuring an extensive JSON API for reading and writing data, so external apps and custom tools can communicate with Kimai.

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Customer Portal

Share client and project statistics and timesheets with anyone using a secret URL, optionally password protected.

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Teams

Teams connects users into logical groups, like departments. Limit access to data by assigning customers and projects to your teams.

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SAML

Log in and register users with SAML via your existing SSO identity provider, like Google Workspace, Authentik or Azure Active Directory.

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Invoicing

Configurable invoice templates, options for entry grouping, configurable invoice numbers, and multiple formats like PDF and DOCX.

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Reports and analyses

Analysis of recorded times by users, customers, projects, activities, tags, time periods and more.

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What users say about Kimai

At Kimai, we've designed our time tracking platform to meet the needs of agencies, teams, and freelancers. Our intuitive interface and powerful features help companies like yours work smarter and more profitably. You can now “listen” to the reviews of the real users.

The best software for time tracking for freelancers and small businesses. We have been using it for 16 years, first as a local installation, then in the cloud version. It works without any problems or interruptions. Top software, top support! Unique recommendation.

Armin Bittner
Armin Bittner
HCM+ GmbH

We have been using Kimai for time tracking at Pulse of Europe for quite some time now and are extremely satisfied with the experience.

As a non-profit, pro-European citizens’ movement, we coordinate a wide range of projects, campaigns and activities involving both staff members and volunteers. Having a reliable and transparent time-tracking solution is therefore essential for our daily work.

What particularly impresses us about Kimai is its simple and intuitive user experience. Working hours can be recorded quickly and easily, while projects and tasks can be clearly categorised and flexibly filtered. This allows us to maintain an overview even across multiple teams, projects and responsibilities.

Kimai helps us make our internal processes more transparent and efficient – both in our day-to-day operations and when evaluating project-related working hours.

For organisations and teams looking for a powerful yet user-friendly time-tracking solution, we can wholeheartedly recommend Kimai.

Hendrik Michel, PoE
Hendrik Michel, PoE
Pulse of Europe e.V.

We use Kimai for project time tracking with our partner organizations. We particularly appreciate its clarity, evaluability, and ease of use. As an NGO, we also appreciate Kimai’s strong focus on this sector. The support is excellent. We are very satisfied.

Johannes Mertens
Johannes Mertens
Fairtrade Deutschland e.V.

When I started to identify a time reporting software for our medium size enterprise (~30 people distributed all over United States and Canada) in the software service industry for onsite and remote services, I had several programs in my mind. In my specification I had the following things to be covered

  • Customer related time reporting
  • Project related time reporting
  • Time approval
  • Various hierarchies in user and access levels
  • Open data interface for potential interfaces to other software packages (such as various payroll software packages for Canada and US, ERP for invoicing)
  • Time budget for hourly packages
  • Time reporting to customers with time budget
  • The data is mine and I always want to have access to it
  • I would like to create plugins if I need to add features that do not yet exist

I continued my search but always came back to Kevin Papst’s time reporting software Kimai. So I installed it on a shared host. I continued to set up a few users and imported a few customers, projects and finally understood how activities are to be set up (global and local). This is a feature that surprised me even more. Well implemented! I finally rolled it out to a small group and then the entire team. The time reporting is now fully implemented within 2 months from first idea to fully operational.

Then the demands grow with the possibilities: I purchased a few plugins and these were installed as simple as the main software. Then, when I had even more requests that I didn’t find an answer by plugins, I reached out to the developer Kevin asking for help with changing a report and he simply answered to consider this for the entire software, not just a module for me. It may be within some of the next releases.

In summary, Kimai is a flexible time reporting package with active code, modern, responsive and fast user interface and a fast responding support.

Thanks, Kevin, for this nice software package!

Frank
Frank
Roptec GmbH

Kimai is an excellent time-tracking software that offers great flexibility and a lightweight, intuitive interface. It’s easy to use and has been a valuable tool for tracking work hours across our projects. We especially appreciate the variety of plug-ins available, which allow us to extend the software’s capabilities. Highly recommended for firms looking for a robust yet user-friendly solution.

Alexander Kostadinov
3Arch Design

Just a great app that is used in our company. It does not require a lot of resources on the server, has a great interface and a lot of features that are so necessary in everyday work.

Dimitro Pukalov
compacer GmbH

We have been using Kimai for many years, initially as a standalone solution on our own server, but for the past three years now in the kimai.cloud. With its structured layout, Kimai meets the time tracking requirements we have as an architecture firm and can flexibly map all of our processes, which is not possible with many time tracking systems. We remain impressed by its reliability, constant maintenance and improvement, and direct, personal service, combined with absolutely fair pricing. We can (and already have) highly recommend kimai.cloud!

Bela Schwier
Bela Schwier
BEHLESJOCHIMSEN&

I love how I can combine time tracking, expense tracking, and invoicing into one app without features hidden behind nagging subscriptions. I can click one button to invoice my clients now! Seriously a godsend. Also, the clean UI is well thought-out and simple to learn. Highly recommend this one!

Isaac Mailach
Isaac Mailach
Freelancer

Really great piece of software. Brings exactly the grade of transparency to my customers that they love to see and for me it‘s a convenient way to track times without any overhead.

Jasmin
yudicon

We have been working with KIMAI 1 for over 8 years and have had the very best experiences with it. It is ideally tailored to our needs (tutoring school). And now we have switched to KIMAI 2 with the help of the very friendly and competent programmer Kevin Papst. Working with Kevin Papst is a real pleasure! KIMAI 2 has been completely reprogrammed, many aspects have been optimized, and the interface has been brought up to the latest standards. KIMAI comes highly recommended for anyone looking for a time tracking solution!

Manfred Janisch
LernParadies Düsseldorf

All your time-tracking needs in one platform

Time is money, and tracking it effectively has become a necessity for project-based teams. Kimai is a powerful time-tracker that's been the favorite of many businesses worldwide. But how does it stack up against Zeitguru? Dive into this comprehensive comparison to find out why businesses are choosing Kimai over Zeitguru

See the difference

Compare Kimai vs. Zeitguru: choose the options that make the most sense for your business.

Kimai
On-Premise

  • Open source software : 
  • Available on-premises : 
  • Available in the cloud : 
  • Server location :  Your choice
  • Max. customers :  Unlimited
  • Max. projects :  Unlimited
  • Max. activities :  Unlimited
  • JSON API : 
  • Invoicing : 
  • Data export : 
  • SAML : 
  • Support :  Forum (GitHub)
  • Backups : 
  • TLS Certificate :  Additional costs
  • Custom domain :  Additional costs
  • Automatic upgrades : 
  • Server maintenance : 
  • IP access restriction : 
  • Custom content :  Paid plugin
  • Audit trail logs :  Paid plugin
  • Custom fields :  Paid plugin
  • Expense management :  Paid plugin
  • Task planning :  Paid plugin
  • Translations :  Paid plugin
  • Working hours, vacation, sickness, public holidays :  Paid plugin
Install

Kimai
Cloud

  • Open source software : 
  • Available on-premises : 
  • Available in the cloud : 
  • Server location :  Hetzner Cloud
    Germany (Falkenstein)
  • Max. customers :  Unlimited
  • Max. projects :  Unlimited
  • Max. activities :  Unlimited
  • JSON API : 
  • Invoicing : 
  • Data export : 
  • SAML : 
  • Support :  Email, Forum
  • Backups :  Daily
  • TLS Certificate : 
  • Custom domain : 
  • Automatic upgrades : 
  • Server maintenance : 
  • IP access restriction : 
  • Custom content : 
  • Audit trail logs : 
  • Custom fields : 
  • Expense management : 
  • Task planning : 
  • Translations : 
  • Working hours, vacation, sickness, public holidays : 
Get started

Zeitguru

  • Open source software : 
  • Available on-premises : 
  • Available in the cloud : 
  • Server location : 
  • Max. customers : 
  • Max. projects : 
  • Max. activities : 
  • JSON API : 
  • Invoicing : 
  • Data export : 
  • SAML : 
  • Support : 
  • Backups : 
  • TLS Certificate : 
  • Custom domain : 
  • Automatic upgrades : 
  • Server maintenance : 
  • IP access restriction : 
  • Custom content : 
  • Audit trail logs : 
  • Custom fields : 
  • Expense management : 
  • Task planning : 
  • Translations : 
  • Working hours, vacation, sickness, public holidays : 
Open source software
Available on-premises
Available in the cloud
Server location
Your choice
Hetzner Cloud
Germany (Falkenstein)
Max. customers
Unlimited
Unlimited
Max. projects
Unlimited
Unlimited
Max. activities
Unlimited
Unlimited
JSON API
Invoicing
Data export
SAML
Support
Forum (GitHub)
Email, Forum
Backups
Daily
TLS Certificate
Additional costs
Custom domain
Additional costs
Automatic upgrades
Server maintenance
IP access restriction
Custom content
Paid plugin
Audit trail logs
Paid plugin
Custom fields
Paid plugin
Expense management
Paid plugin
Task planning
Paid plugin
Translations
Paid plugin
Working hours, vacation, sickness, public holidays
Paid plugin

Please note that the above information were manually compiled on 2026-02-24 from the Zeitguru website. For the comparison, the best matching plans were chosen. Prices are subject to change. For the most current pricing, please visit the respective websites.

Kimai is open source

Kimai is #1 open-source time-tracking software, providing unparalleled transparency and flexibility. By choosing Kimai, you’re investing in a secure, cost-efficient solution with complete control over your data and the ability to customize it exactly as your team needs.

Self-host with complete control

Kimai offers a self-hosted edition that puts data privacy to the front. With on-premises deployment, you maintain complete control over your sensitive business information, ensure compliance with stringent data protection regulations, and achieve a level of security that's often challenging with cloud-only solutions. Plus, Kimai's API allows seamless integration with your existing tools and workflows.

EU-based data protection

If you decide to go with the cloud edition, you can be sure that your data is safe. With the headquarters located in Austria (EU), it is GDPR-compliant by default and all data is stored in Germany (Hetzner Cloud, Falkenstein). Learn more about our privacy-first approach

Conclusion

In today's digital age, data security is paramount. Kimai promises secure data protection and state-of-the-art encryption, ensuring that your business's sensitive information remains confidential.

Kimai offers a well-rounded solution that caters to a variety of workflows and use-cases for most project-based teams and companies. Its ease of use, integration capabilities, and commitment to data security and privacy make it a top choice for businesses seeking an efficient time-tracking software.

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