Import
Paste cookies, read from clipboard, or select a file. Cookie Brother normalizes browser-sensitive fields such as SameSite, Secure, host-only, and expiration values.
Cookie Brother processes cookie data locally in your browser profile. It supports JSON, Netscape cookies.txt, Set-Cookie headers, Cookie headers, HAR-like cookie data, and Playwright/Puppeteer storageState files.
Read the Privacy Policy for Chrome Web Store and Firefox Add-ons disclosure details.
Export
Export every cookie from every site, selected domains, or every possible cookie for the current site as JSON, Netscape cookies.txt, or Cookie header text.
Manage
Search, inspect, copy, and delete cookies from a focused popup or the full manager page.
Support
Optional TON / USDT donation support is available inside the extension. Donations are voluntary and outside cookie processing.