Encrypt your important messages using OTP, an algorithm that even quantum computers can't break.
Users
10
−1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#193K
#161K among extensions
Version
1.1.2
updated 7 Feb 2023
Users
monthly, 3 years
Latest, 15 Oct 2026:10 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 years
Latest, 15 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 PostQuantum
In an age of quantum computing, we must have a way of securing our important messages against quantum computers. This Chrome extension was developed to try and fill this need, by allowing you to easily encrypt your important messages with one time pad encryption, an encryption algorithm that cannot be broken by quantum computers. Along with this, we also use SHA-512 to ensure integrity of your messages.
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