CookieVaultA secure, isolated browser to generate Netscape-format cookie files — without ever exposing your real browser dataTools like yt-dlp, gallery-dl, and similar utilities support cookie-based authentication through a cookies.txt file in the Netscape format. The most common way to generate this file is by exporting cookies directly from your browser — Chrome, Firefox, or Edge — using a browser extension.This is risky.

Why CookieVault exists

Tools like yt-dlp, gallery-dl, and similar utilities support cookie-based authentication through a cookies.txt file in the Netscape format. The most common way to generate this file is by exporting cookies directly from your browser — Chrome, Firefox, or Edge — using a browser extension.This is risky.When you export cookies from your main browser, you are extracting all cookies from your entire browsing session — including banking sessions, email authentication tokens, private account credentials, and any other sensitive data stored across every site you have ever visited. A single mistake — a wrong export scope, a misconfigured extension, or a file accidentally shared — can expose credentials you never intended to share.CookieVault solves this problem at the root.

What CookieVault does

CookieVault is a minimal, sandboxed browser with one single purpose: visit a website, let it set its cookies, and export only those cookies to a clean cookies.txt file.Nothing else. No history. No saved passwords. No extensions. No connection to your real browser profile.You navigate to the service you need — YouTube, for example — log in, and export. The resulting file contains only the cookies from that one session, in a clean Netscape format ready to be passed directly to yt-dlp.

What CookieVault is NOT

CookieVault is not a general-purpose browser. It has no bookmarks, no tabs, no history, no address suggestions, no download manager. It does one thing well: authenticate a session and export its cookies safely.If you need a full browser, use a full browser. If you need a safe way to generate a cookies.txt file, use CookieVault.