See everything
All cookies in your profile, grouped by domain, with instant search. Normal and incognito stores stay separate.
Live on Firefox · Chrome & Safari soon
The cookie editor that never loses a byte.
View every cookie, edit any field, and back up or restore them as clean, lossless files. All on your device. Built for developers who need cookies to be exact.
No account · no tracking · nothing leaves your browser
SameSiteHttpOnlySecurePath & DomainPartition keys (CHIPS)ExpirationNetscape cookies.txtEditThisCookie JSONIncognito store
SameSiteHttpOnlySecurePath & DomainPartition keys (CHIPS)ExpirationNetscape cookies.txtEditThisCookie JSONIncognito store
What it does
Precision for people who take cookies seriously.
Every attribute preserved on export, restored exactly on import. No silent data loss, no guessing.
Edit any field
Name, value, domain, path, expiration, Secure, HttpOnly, SameSite and CHIPS partition keys — or create one from scratch.
Lossless backup
Export the whole browser, one site, or a single cookie to clean JSON. Every attribute round-trips exactly.
Honest import
Restore from a file with a dry-run preview and a per-cookie report: created, skipped or rejected — and exactly why.
Private by design
No servers, no analytics, no accounts. Your cookies and every edit stay on your device — full stop.
Cross-browser
One tool and one file format across Chrome, Firefox and Safari, so your backups stay portable everywhere.
Why the name
A nibble is half a byte. Four bits.
A nibble is a real unit programmers use: half a byte, four bits. It's also a small bite of a cookie. Fitting for a tool this precise — one that reads every bit, but only ever deals in cookies.
A byte is eight bits. The first four are one nibble.
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1
0
0
1
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1 byte = 8 bits · 1 nibble = 4 bits · a small, precise bite
Privacy
Your cookies never leave your browser.
There is no backend. Cookie Nibble reads and writes cookies locally, at your command, and sends nothing anywhere. No analytics, no accounts, no phone-home.
Data not collected
No servers
No account
License checked on-device
Pricing
Buy once. Yours for good.
No subscription. The license key is verified locally, so it just works — offline, on your devices.
Free
€0
forever
- Browse & search every cookie
- Edit, create & delete
- Export a single cookie
One-time
Cookie Nibble Pro
€10 once
lifetime key · free updates
- Everything in Free
- Export all — full-browser & full-site backups
- Import — restore from any exported file
- Dry-run preview & per-cookie report
- Verified on device — no login, no tracking
Questions
Good to know.
How do I get my license after paying?
Right after checkout you receive your key by email. Open Cookie Nibble, click Pro, paste the key, and bulk export & import unlock immediately. The key is verified on your device — no account, no login.
Is it a subscription?
No. It's a one-time €10 payment for a lifetime key, including future updates.
What data do you collect?
None from the extension — it has no servers and no analytics. If you buy Pro, our payment provider handles the transaction and we receive only your email and an order reference to send your key. See the Privacy Policy.
Which browsers are supported?
Firefox today, with Chrome and Safari builds on the same file format. Grab the Firefox version from the button above.
Can I use one key on more than one computer?
Yes — activate the same key on your own devices. Please don't share it publicly; that's what keeps the tool maintained.
Refunds?
If it doesn't work for you, email support@cookienibble.com within 14 days and we'll make it right.