Cookie Policy
Effective date: October 15, 2026
zvena uses only cookies and browser storage that are strictly necessary to sign you in, keep your settings and make the editor work. There are no analytics, advertising or tracking cookies, so there is nothing to opt in or out of, and no consent banner beyond a short notice.
1. Cookies set by zvena
| Name | Purpose | Duration |
|---|---|---|
__Host-zv_s | Keeps you signed in. Not readable by page scripts (HttpOnly) and sent only over HTTPS. | 30 days, renewed while you use zvena; removed when you sign out |
zv_g | A random guest id, so files you upload without an account stay yours and move into your account when you sign in | Until you sign in; guest files are deleted after 30 days without a visit |
zv_lang | Your interface language | 400 days |
zv_ws | The workspace you had open last | 400 days |
zv_otn | A one-time security value that protects Google One Tap sign-in against replay (HttpOnly) | 10 minutes |
2. Cookie set by Google on the sign-in prompt
For signed-out visitors, the home page and the sign-in page load Google’s sign-in script from accounts.google.com to show the “Sign in with Google” (One Tap) prompt. That script may set the g_state cookie on zvena.app to remember that you closed the prompt, so it is not shown again right away. Your browser also talks to Google directly to display the prompt; Google’s privacy policy applies to that. The script is not loaded on other pages or once you are signed in.
3. Browser storage
- localStorage
zvena-settings— theme and editor settings;nt-*— Docs panel layout and editor preferences;zv-cookie-ok— that you have seen the cookie notice. - IndexedDB
zvena-docs— a local copy of the open workspace’s documents, so they open instantly and keep working offline. If you use Docs without an account, this is the only copy of your documents.
4. Your choices
You can delete cookies and site data in your browser settings at any time. If you delete the session cookie you will need to sign in again; if you delete guest data, documents you created without an account are lost. Because we only use strictly necessary cookies, blocking them may stop zvena from working.
More about how we handle personal data is in our Privacy Policy. Questions: support@zvena.app.