A clean, offline-first Chrome extension for inspecting, decoding, and managing browser cookies — with dark mode, live updates, snapshots, and import/export.
Chrome Web Store listing coming soon.
Cookie Inspector — Main View View and search all cookies grouped by domain, with security indicators and expandable detail panels.
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Snapshots Save up to 10 point-in-time copies of your cookies and restore them at any time.
| Light Mode | Dark Mode |
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Snapshot Management Manage your saved snapshots — view when each was taken, how many cookies it contains, and restore or delete with one click.
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View every cookie stored in your browser, grouped by domain. A stats bar shows the total count and number of domains at a glance. The list updates in real time as websites set or remove cookies while the popup is open — no need to close and reopen.
Expand any cookie with the chevron to reveal its full metadata — raw value, path, secure flag, HttpOnly, SameSite policy, expiration date, and host-only status. If the cookie value is JSON or Base64 encoded, the decoded output is shown automatically.
- Manual form — create a cookie field-by-field with full control over every attribute
- JSON / Base64 paste — paste a cookie object, an array of cookies, or Base64-encoded JSON to create one or many cookies at once
- Inline editing — expand any cookie and click Edit to modify its fields directly in the detail panel
Filter the cookie list by attribute using quick-select chips:
- All — show everything
- Session — cookies with no expiration date
- No HttpOnly — cookies accessible to JavaScript (potential XSS risk)
- Insecure — cookies without the Secure flag
- Duplicate — cookies whose name appears on more than one domain
Sort domain groups by: Domain A–Z, Name A–Z, Expiry, or Cookie Count.
- Cookies missing the
HttpOnlyflag show a No HttpOnly label with an amber left border - Cookies whose name appears on multiple domains show a Duplicate label
- The Insecure filter surfaces cookies missing the Secure flag
Pin any domain to keep it anchored at the top of the list, regardless of the active sort order. Pin state is saved across sessions.
- Delete — remove any individual cookie instantly
- Clear Domain — bulk delete all cookies for a domain in one click
- Make Session-Only — strip expiration dates from all cookies under a domain
Save up to 10 named, point-in-time copies of all your cookies. Each snapshot records when it was taken and how many cookies it contains. Restore any snapshot to bring your cookies back to that state, or delete ones you no longer need.
Export all current cookies to a timestamped JSON file for backup or transfer. Import a previously exported file to restore cookies across sessions or devices.
Automatically respects your system's dark/light preference. Toggle manually at any time using the theme button in the header — your preference is saved across sessions.
Cookie Inspector is entirely offline. No data is ever collected, transmitted, or shared. All storage is local to your browser.
Coming soon — link will be added once approved.
- Clone or download this repository
- Open Chrome and go to
chrome://extensions/ - Enable Developer mode (top right toggle)
- Click Load unpacked and select the project folder
No build step required. Edit the source files directly and click the refresh icon on the extension card in chrome://extensions/ to reload.
cookie_inspector/
├── manifest.json # Extension config and permissions
├── cookieEditor.html # Popup UI
├── cookieEditor.js # All application logic
├── cookieEditor.css # Styles and theme tokens
├── privacy-policy.html # GitHub Pages privacy policy
├── screenshots/ # Screenshots used in this README
└── icons/ # Extension icons (16px, 32px, 48px, 128px)
MIT
Built by @joshuaerney