Privacy Policy

1. Core Privacy Philosophy: Client-Side Architecture

At RealCronExpression (realcronexpression.com), your privacy and proprietary infrastructure security are our highest priorities. We designed this platform from the ground up as a 100% client-side web application.

All Cron expressions, shell commands, script parameters, schedule inputs, and timezone calculations are processed locally inside your web browser's JavaScript engine (V8, JavaScriptCore, SpiderMonkey). Zero Cron expression data, schedule syntax, or custom command strings are ever transmitted to, stored on, or processed by our servers.

2. Information We Do NOT Collect

Because RealCronExpression operates entirely in the browser without requiring user accounts or backend processing:

• No Personal Identifiable Information (PII): We do not ask for, collect, or store your name, email address, phone number, or physical address.
• No User Accounts: There are no user registrations, passwords, or authentication profiles.
• No Cron Schedule Storage: We do not log or store the Cron expressions you generate, parse, or evaluate.
• No Command Logging: Shell commands, bash scripts, database names, or API targets entered into generators remain strictly in your browser session.
• No Payment Information: RealCronExpression is completely free to use. We do not process or store credit cards or payment credentials.

3. Local Storage & URL State

To provide a seamless developer experience, our website may store basic non-identifiable UI preferences locally on your device via browser localStorage:

• Theme Preference: Storing whether you selected Light Mode or Dark Mode (localStorage.getItem('theme')).
• URL Hash State: When you share or bookmark an expression link (e.g. /#0%209%20*%20*%201-5), the expression is stored strictly in the URL client-side anchor fragment, which is never sent in HTTP request headers to our origin servers.

4. Third-Party Services & Advertising

To keep RealCronExpression free and maintain server bandwidth, we may display unobtrusive advertisements served by third-party advertising networks such as Google AdSense:

• Third-party ad networks may use cookies or web beacons to serve ads based on your prior visits to this or other websites on the internet.
• Users may opt out of personalized advertising by visiting Google Ads Settings or AboutAds.info.

5. Security of Enterprise Schedules

Because no data leaves your machine, RealCronExpression is safe for enterprise engineers, DevOps teams, and security professionals working under strict compliance frameworks (including SOC2, ISO 27001, HIPAA, and GDPR). You can safely evaluate confidential internal microservice schedules, database cron entries, and production cron triggers without risk of third-party exposure.

6. Changes to This Policy

We may update our Privacy Policy periodically to reflect technological improvements or regulatory adjustments. Any changes will be posted immediately on this page with an updated "Last Updated" timestamp.

7. Contact Information

If you have questions or feedback regarding this Privacy Policy, please visit our Contact Us page or email us directly at support@realcronexpression.com.