Go to the site and it automatically generates what you select. Hit refresh to regenerate.
- small or capital letter: http://www.randomlettergenerator.com/index.html
- 0-9 number: http://www.randomlettergenerator.com/random-numbers-0-9.html
- 0-100 number: http://www.randomlettergenerator.com/random-numbers-0-100.html
