A nice resource to create strong passwords is Wolfram Alpha search engine. This site will generate a random password for you with a full description about the time it would take to crack the password and other interesting security information.
Wolfram Alpha (styled Wolfram|Alpha) is an answer engine developed by Wolfram Research. It is an online service that answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer as a search engine would [Wikipedia]
How to generate random passwords :
- Open Wolfram Alpha search engine.
- Enter the phrase “password of xx characters” ( xx is the length of the password that you want to generate )
- In case you need, customize security settings on “Specific password rules” link.
- If you need more passwords then click on “New Password” link
Nice online tool to generate safe passwords without install any third party software.
Link : Wolfram Alpha