Keep the logins, numbers and notes you need right next to the sites you need them on.
Users
2
store count
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
total ratings
Store rank
#360K
#274K among extensions
Version
0.2.0
updated 23 Sep 2026
Users
monthly, 1 months
Latest, 16 Oct 2026:2 usersMove the mouse over the chart for any month
Ratings count
monthly, 1 months
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Save Book
Save Book keeps the logins, codes and numbers you need on a specific website one click
away, without leaving the page.
You choose which sites get a card. On those sites — and nowhere else — a small card
appears with the items you saved for them. Click a row and the value is on your
clipboard.
WHAT IT IS FOR
- Test and staging credentials you look up a dozen times a day
- Shared QA accounts, support phone numbers, order references
- Anything you keep hunting for and pasting into the same site
HOW IT WORKS
1. Open the settings page and type a domain, for example staging.example.com. Save Book
asks Chrome for access to that domain only.
2. Add the items you want, with a short label — plain text or a masked secret.
3. Open the site: the card is there. Drag it wherever suits you; the position is
remembered per site.
The card is deliberately minimal: just your items. Click to copy, reveal a masked value
with the eye toggle, collapse or hide the card with one click, or toggle it from the
toolbar icon. It only appears on domains you added yourself.
PRIVACY
Save Book has no servers and no accounts. Everything you save stays in Chrome's local
extension storage on your own device. The extension makes no network requests at all,
contains no analytics and no tracking, and cannot read anything on a page unless that
page's host is one you added.
Host access is requested one domain at a time, when you add it, and handed back when you
remove that site. The extension installs with access to no website at all.
OPEN SOURCE
Save Book is open source, released under the MIT license. The full source is public at
https://github.com/piotroszko/save-book-extension, so you can read exactly what the
extension does and verify the privacy claims above instead of taking them on trust. Bug
reports and suggestions are welcome in the issue tracker.
A NOTE ON SECRETS
Items are stored unencrypted in your browser profile, unlike Chrome's own password
manager, which encrypts with your system keychain. Anyone with access to your computer
and browser profile can read them. Keep that in mind before storing a production
credential, and use it for test accounts rather than production ones.
Growth
Window
Users
Change
Ratings
Rating
7 days
0
+0.0%
0
0.00
Chrome Web Store search rankings
Where Save Book appears when people search the store, with the 30 day change