MlkPwgen

Secure random password generator for .NET and PowerShell

Benefits at a glance:

Uses a cryptographically secure PRNG
Can guarantee that the password contains digits, special characters, or any other set
Can generate pronounceable, easier-to-remember passwords
Packaged as a .NET library and as a PowerShell module
Comes with API Documentation

.NET

Install-Package MlkPwgen

Import the namespace:

using MlkPwgen;

Then calling the library is as simple as:

Console.WriteLine(PasswordGenerator.Generate());

Check out the API Documentation for full details.

With PowerShell >5, installation is as simple as:

Install-Module MlkPwgen

Generate a handful of passwords:

PS > 1..5 | foreach { New-Password }
xVs7tYANfs
FGQ4hF29Oe
QHffH4QRUE
ai1AaBqSMe
Dd7cnAG8a8

Generate letters only:

PS > New-Password -Lower -Upper
HccNubILPl

Digits only:

PS > New-Password -Digits -Length 6
470114

All together now, with symbols:

PS > New-Password -Lower -Upper -Digits -Symbols
y3iF(g(xUw

Generate pronounceable passwords:

PS > 1..5 | foreach { New-PronounceablePassword }
NaternNeam
LumLictles
StZattlate
InfeHascal
Tighampers

Pronounceable passwords can have digits and symbols too:

PS > New-PronounceablePassword -Digits -Symbols
^Norompog2

Credit for the algorithm used to generate pronounceable password goes to Tom Van Vleck. I've made a few changes along the way:

The algorithm has been modified to take into account word endings
The data tables have been generated from a new source
I added the ability to mix in random character sets (such as digits and symbols) into the generated password