Last updated: September 18, 2026
ZenCompiler uses minimal cookies and browser local storage strictly to keep you authenticated and preserve your editor preferences.
Cookies are small text files placed on your device to maintain your session across pages. Browser local storage is client-side memory used to cache custom configurations (such as editor themes, keybindings, and tab state) for instant 0ms access.
| Storage Key / Name | Purpose | Duration |
|---|---|---|
| sb-*-auth-token | Maintains your authenticated developer session. | Session / 1 Year |
| zen_compiler_prefs | Caches font sizes, line numbers, and theme options. | Persistent |
| zen_learn_progress | Local offline cache of completed lessons & challenges. | Persistent |
We integrate Razorpay for secure subscription checkouts. During payment transactions, Razorpay may set fraud-prevention and verification tokens according to their industry security requirements.
You can clear or block cookies and local storage through your browser settings at any time. Please note that clearing essential auth cookies will sign you out of ZenCompiler.
For questions about our cookie usage, email [email protected] or visit our Contact Page.