One Site One Password (OSOP) icon

One Site One Password (OSOP)

by Chris Fu · 51pwd.com · Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 19 Oct 2026

One Site One Password (OSOP) - Generate passwords when needed, not store them!

Users
66
−1 in 30 days
Rating
4.7 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#98K
#82K among extensions
Version
2.0.1
updated 5 Apr 2025

Users

monthly, 3 years
104784Aug 2023Apr 2025Oct 2026
Latest, 19 Oct 2026: 66 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
023Aug 2023Apr 2025Oct 2026
Latest, 19 Oct 2026: 3 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 One Site One Password (OSOP)

One Site One Password adopts the innovative "generate on demand" concept, revolutionizing traditional password management. Remember just one cipher to generate completely different strong passwords for every website, eliminating password memorization hassles and data breach risks. Key Features: • Zero Storage Design: All passwords are generated on demand, eliminating database leak risks • One Cipher for All Sites: Remember just one initial cipher to generate unique passwords for all websites • Completely Local Processing: All calculations performed on your device, no data sent to any server • Multi-layer Encryption: Uses MD5+Salt+Base64 encryption, ensuring your cipher cannot be reverse-engineered • Multiple Password Lengths: Offers 8, 14, and 20-character options to meet different website requirements • 60-second Auto-clear: Generated passwords automatically cleared after 60 seconds • Cross-device Consistency: Generate identical passwords on any device using the same cipher and site name Simple 4-Step Usage: 1.Enter the website name (like "gmail" or "facebook") 2.Enter your personal cipher (at least 5 characters) 3.Click the "Generate Password" button 4.Select and copy the password length suitable for that website No internet connection required, no account creation needed, protect your privacy and security, and say goodbye to password management troubles

Growth

WindowUsersChangeRatingsRating
7 days+1+1.5%00.00
30 days−1−1.5%00.00
6 months−7−9.6%00.00
1 year+7+11.9%+1+0.17

Version history

2 versions recorded
2.0.15 Apr 2025
1.2.412 Dec 2013

Details

Category
Tools
First seen
12 Dec 2013
Size
238 KB
Languages
en, zh-CN
Pricing
Free
Privacy policy
51pwd.com
Support
51pwd.com
Extension ID
jaehfjimgenmolibjliggghmjlbfhamp

Permissions and risk

Low riskimpact 1, likelihood 1
Permissions
clipboardWrite

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