Learn how to use KeyGrinder
Securely use the same password everywhere.

KeyGrinder uses a simple algorithm to build secure passwords out of easily-remembered information. All you need is a simple word or phrase, and KeyGrinder does the rest.

- No need to remember complex passwords
- Passwords aren't stored in the app or on our servers
- Use the same password to generate multiple secure passwords
- Or use a different password every time for extra security
- Our algorithm means that the same address/password pair will create identical secure passwords within the app and on our website
- Lose or forget your iPhone? Grind your passwords again at
- No opportunity for data corruption
- Maintain a list of favorite URLs
- Passwords are automatically copied to the pasteboard for faster use
- Get in and get out with KeyGrinder's simple, elegant interface
- Inspired by and compatible with Stanford University's PwdHash project

KeyGrinder makes it easier than ever to practice good password policy.

What's New

Version 1.2

Better table performance fixes crash on some machines.

Ratings and Reviews

4.2 out of 5

12 Ratings

12 Ratings

I agree with mechobba


I like this app also, it generates a password using the webpage address and a set of characters that you generate. And I looked at the parameters while it was running with activity monitor and found it to be kind of miserly re: memory usage. The apps folders and files are measured in kbytes so its a small app just sitting there not being used so Im not sure what the other user was decrying about Gig memory usage. I also think a little help file would make this app a little more understandable…but if a potential user doesnt want to invest just about 90sec to visit a page and read…well thats the users business I geuss. Anyhow, nice work M. Overrated.
Having said that Im going to explore his page and suggest some flexability to his app, but you’ll notice that I gave the app 5 stars.

Simple but killer app


Makes it quick and easy to create and access a unique and highly secure password for everything. This app will live on ever mac I own - indefinitely.

Adding a built-in help file would result in higher ratings from the average user who downloads it without understanding it. I also checked the memory usage because of a negative review on an older version. You'll be happy to know that it's not an issue any longer (if it ever actually was).

I use this every day


It gives me a unique hard to guess password for every site I visit, and I only have to remember one seed. It's great.


Massively Overrated
440.9 KB
Age Rating
Rated 4+
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  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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