# Last updated: July 2026
Most tools on KRUMB.DEV process data entirely in your browser. When you format code, decode tokens, generate passwords, or use most tools on this site, your input data never leaves your device.
A small number of tools (DNS lookups, SSL checks, webhook proxying, IP lookup) require lightweight edge API calls for operations browsers cannot perform natively. These APIs do not log your payloads and are purpose-built for each tool. This is disclosed per-tool in the tool description and FAQ.
> We do not collect any personal data from tool usage.
> We do not use cookies for tracking, advertising, or analytics that identify you.
> We do not have user accounts — nothing to sign up for.
> Standard server logs (IP, browser agent, page visited) are retained for operational purposes only, anonymized, and kept for no more than 30 days.
KRUMB.DEV uses minimal cookies solely for site functionality and, in the future, to serve privacy-compliant advertisements via Google AdSense. These cookies help us analyze site traffic and show relevant ads while respecting your privacy.
Google AdSense may use cookies and web beacons to serve interest-based advertisements based on your visit to our site and other sites on the internet. You may opt out of personalised advertising by visiting Google Ad Settings.
> A cookie consent banner will appear on your first visit. You can accept or decline non-essential cookies at any time.
> Google AdSense — serves advertisements on this site. AdSense may use cookies to serve personalised ads based on your browsing history.
> We do not embed third-party trackers, analytics scripts, or social media pixels beyond standard AdSense advertising.
> No third party has access to your tool input data (it never leaves your browser).
> You can disable cookies in your browser settings.
> You can opt out of personalised ads at ads settings.
> Your tool usage data is never collected, stored, or shared regardless of your cookie choices.
If this policy changes, we will update the date at the top of this page. Since we collect no personal data, there is nothing to notify you about — but we believe in transparency.
$ EOF — End of privacy policy