Free tools, no account.
Calculators and document tools that run in your browser. Nothing to sign up for, nothing stored, and no limit on how often you use them.
Why these are free
We build software that runs hotels: the front desk, the channel connections, the restaurant, the billing. These tools use arithmetic our product already does every day, so giving it away costs us very little.
We do hope you look at the rest of what we build. But the tools work whether you do or not, and nothing here is a trial that runs out.
See what we buildQuestions about the free tools
Can't find yours? Call us. A person who has worked a front desk picks up.
Ask us directly →Are these tools really free?
Yes. There is no account, no signup, no trial that expires, and no limit on how many times you use them. We build hotel software, and these tools use the same arithmetic our product runs on.
Do I need a ZimmerStack account?
No. Every tool works with no account at all. We ask for an email only if you want something extra, like a copy sent to you, and never to get your result.
Do you store what I enter?
No. These tools run in your browser. What you type is not sent to us and is not stored anywhere.
Are these only for hotels?
Some are. The calculators built around rooms, rates and channels are for accommodation. The document tools work for any business. They simply ship with hotel presets, because that is who we build for.
Why give this away?
Because the work is already done inside our product, and because a tool that helps you today is a better introduction than an advertisement. We hope you look at the rest of what we build.
Talk to a person who has worked a hotel desk.
Call or WhatsApp, 24/7. Or start a 30-day free trial on your real rooms. If it doesn't fit your hotel, we'll tell you.
30-day free trial · free 48-hour migration · cancel monthly