What is UniquePasswordBuider?

UniquePasswordBuider is a Chrome extension developed by paulgreg, and its main feature is "A strong password generator per site".

Extension Screenshots

Download UniquePasswordBuider Extension CRX File

Download UniquePasswordBuider extension files in crx format, manually install Chrome extensions in the browser, or share the crx files with friends to easily install Chrome extensions.

Extension Usage Instructions

A good security practice is to use a different and strong passwords for each site you visit.
Memorizing that in your head is a pain.
The UniquePasswordBuilder addon allows you to construct strong and different passwords based from a single master password (the only you have to know).
When you’re on a login page, click on the lock icon, then type your master password. When finished, a password for that login page has been generated. You can then click on the icon on the right or press enter to paste it into clipboard, then just paste it in the login form. For each website, the generated password is different.

The master password is hashed a large number of time with the domain’s site generating an unique password for that site. Hashing algorithm is scrypt (which is memory resistant).

Note that your master password should be strong (more than 10 characters in lower and upper case, numbers and special characters). Using simple password makes brute force attack easier.

Other password tools (LastPass, KeyPass, etc) usually stores websites passwords into a encrypted database.
The drawback of that approach is that the database needs to be synced between all of your devices.
UniquePasswordBuilder doesn’t uses a central database because it recomputes your password each time.
For increased security, you can set a `user salt`, which make it even more resilient against rainbow table attacks.

You can use CTRL + SHIFT + L to open the addon.

That addon is free software and you can study the source code here : https://github.com/paulgreg/UniquePasswordBuilder
You’ll find further information on the project home page : https://paulgreg.me/UniquePasswordBuilder/

Extension Basic Information

Name	UniquePasswordBuider
ID	egilgkfibealmbllcigihfhglhipnmie
Official URL	https://chromewebstore.google.com/detail/uniquepasswordbuider/egilgkfibealmbllcigihfhglhipnmie
Description	A strong password generator per site
File Size	674 KB
Installation Count	88
Current Version	1.1.4
Last Updated	2020-11-21
Publish Date	2018-03-10
Rating	4.00/5 Total 1 Ratings
Developer	paulgreg
Email	[email protected]
Payment Type	free
Extension Website	https://paulgreg.me/UniquePasswordBuilder/
Help Page URL	https://github.com/paulgreg/UniquePasswordBuilder/issues
Supported Languages	en-US
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "manifest_version": 2, "short_name": "UniquePasswordBuider", "name": "UniquePasswordBuider", "version": "1.1.4", "description": "A strong password generator per site", "homepage_url": "https:\/\/paulgreg.me\/UniquePasswordBuilder\/", "icons": { "16": "imgs\/icon-16.png", "48": "imgs\/icon-48.png", "96": "imgs\/icon-96.png" }, "applications": { "gecko": { "id": "[email protected]", "strict_min_version": "45.0" } }, "commands": { "_execute_browser_action": { "suggested_key": { "default": "Ctrl+Shift+L", "mac": "Command+Shift+L" } } }, "permissions": [ "activeTab", "storage", "clipboardWrite" ], "browser_action": { "default_icon": "imgs\/icon-96.png", "default_title": "UniquePaswordBuilder", "default_popup": "index.html" } }