For SMEs with 5 to 250 employees

Workforce scheduling for small and medium-sized businesses

Do you schedule with Excel, on paper or in a group chat today? Klacks plans shifts and tours, checks rest periods and qualifications, and runs on your side: on an office PC or your own server. Open source, no license fees.

Developed and tested with a dataset of 5,000 employees.

What Klacks takes off your hands

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Shift schedule with rules

Klacks knows rest periods, qualifications, public holidays and pay supplements. For many countries, a country pack brings these rules along right away.

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Replace absences faster

If someone drops out, Klacks suggests a replacement who has the required qualification and observes the rest period.

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Ready for the payroll office

At period closing, Klacks creates the payroll export. The employee list can be exported as well.

One platform, many industries

Built for shift- and field-based operations

Wherever staff are scheduled in shifts, in the field, and by qualification — Klacks adapts to you, not the other way around.

What you need

Klacks runs on your side, not in someone else's cloud. There are two ways to do this.

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On an office PC

  • A Windows or Mac computer with Docker Desktop that is running during working hours
  • We recommend 16 GB of memory
  • Your team reaches Klacks on the office network; access from outside is not set up
  • Klacks installs new versions there automatically
  • Docker Desktop is free for businesses with fewer than 250 employees and less than 10 million USD in annual revenue
  • Klacks was developed and tested with a dataset of 5,000 employees; how smoothly it runs on your PC depends on the PC's performance
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On your own server

  • A Linux server with at least 8 GB of memory and 4 CPU cores
  • Klacks installs new versions there automatically
  • Suitable if you already run a server or have one managed for you

Allow about half an hour for the first start, depending on your computer and internet connection.

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Your data

You enter employees directly in Klacks or import them from an Excel or CSV file; a preview shows you what is missing before anything is saved. You can also take over employees from LDAP or Active Directory by synchronising; your people can sign in via OpenID Connect or OAuth 2.0 as well. Your data stays in your installation, in the open PostgreSQL database; a complete data export is planned for version 1.1. You run the AI assistant with the model of your choice, including a local one.

Help

Ask general questions in our Discord community and specific questions by email. Klacks uses AI assistants for sales and support. Answers from an AI are labeled as such.

Want to try it first?

In the Playground, you test Klacks with sample data right in the browser, without installation and without registration.

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