Processing happens in your browser
Cron expressions, time-zone choices and builder selections are processed entirely by JavaScript in your browser. They are never sent to a server. The expression appears in the page URL only so that you can share or bookmark it; if you share that link, the recipient can see the expression.
Analytics
We use Vercel Web Analytics to count page views and a few anonymous events, such as copying a result, clicking a preset or switching language. Vercel Analytics is cookieless: it does not set cookies, does not build cross-site profiles and reports only aggregate numbers. No advertising or third-party trackers are loaded.
Only three custom events exist: copy_output (which kind of result was copied), preset_click (which preset was used) and locale_switch (from which language to which). None of them contains the text of an expression or any identifier that could follow you to other websites.
Hosting and contact
The site is a set of static files served by Vercel, which, like any web host, processes your IP address to deliver the pages. We do not store personal data, run accounts or send email. If this policy changes, the updated version will be published on this page.
Your choices
Because we do not store personal data, there is nothing to export or delete on our side. The tool does not use localStorage or other browser storage for your expressions. If you block analytics scripts, the tool keeps working exactly the same. For details on how Vercel handles request data, see Vercel’s own privacy policy.
Frequently asked questions
- Do you store the cron expressions I enter?
- No. They are processed in your browser and are not transmitted.
- Does the site use cookies?
- No. Neither the tool nor Vercel Analytics sets cookies.
- What do the analytics events contain?
- Only the event name and a short label, such as which preset was clicked — never the expression you typed.
- Can I use the tool offline?
- Once the page has loaded, all calculations work without a network connection.