Cookio - Smart Cookie Editor & Switcher

Modern cookie editor with 1-click cookie snapshot persistence, editing, and cross-session switching.

Cookio is a modern, privacy-first cookie editor and session switcher engineered for developers, QA engineers, and multi-account managers. Quickly inspect, edit, snapshot, and swap cookie sets for any domain with zero telemetry and 100% local-first storage. KEY FEATURES: 🍪 Real-Time Cookie Editor • Inspect all cookies for the active domain instantly. • Edit Name, Value, Domain, Path, Expiry, SameSite, Secure, and HttpOnly properties in real-time. • Delete individual cookies or clear domain cookies in one click. ⚡ 1-Click Cookie Snapshots & Account Switcher • Save the complete authentication cookie state of your current tab into a named snapshot (e.g., "Admin", "Test User", "Staging"). • Switch between different user personas or accounts in 1 click without repeatedly logging in and out. 🛡️ Cookie Persistence Guard • Prevent short-lived session cookies from auto-expiring while you work. • Automatically restores and refreshes expiry timestamps for locked cookie snapshots. ⇄ Flexible Import & Export • Export active cookies to JSON or Netscape format for curl, automation scripts, or sharing. • Paste and restore cookie sets directly from clipboard with instant syntax validation. 🔒 Privacy-First Architecture • 100% Local-First: Your cookies, sessions, and credentials never leave your browser. • Zero external tracking, zero third-party analytics, and zero telemetry. • Native Manifest V3 architecture with full Chromium SidePanel and Popup support. PERFECT FOR: • Web Developers testing auth flows and token lifecycles. • QA Testers switching between multiple roles (Admin / Member / Guest). • Security Researchers auditing cookie headers, SameSite flags, and HttpOnly attributes.