Ciphers, codes, and languages:
https://paulschou.com/tools/xlate/: Base32, Base64, binary, hex, oct, and ascii85.
http://pbaseconverter.com/: base16, 32 and 64
http://rumkin.com/tools/cipher/: TONS of basic ciphers and shifts (Atbash, ROT, etc.)
http://www.asciitohex.com/: Allows you to encode in hex, decimal, binary, base34, URL encode, and ROT13.
http://pbaseconverter.com/: base16, 32 and 64
http://rumkin.com/tools/cipher/: TONS of basic ciphers and shifts (Atbash, ROT, etc.)
http://www.asciitohex.com/: Allows you to encode in hex, decimal, binary, base34, URL encode, and ROT13.
Characters and story:
https://www.16personalities.com/free-personality-test: Get a basic feel for your character's personality with an MBTI personality test. Keep in mind that if you follow the personality description word for word, never stray from it, and never flesh it out further, you will have a bland character. It's simply a good starting point.
Design:
http://www.colourlovers.com/: Websites, designs, etc. all need a good color palate. This can help you find one.
http://html-color-codes.info/colors-from-image/: Find out what hex color is used in an image.
http://html-color-codes.info/colors-from-image/: Find out what hex color is used in an image.
Misc:
http://m.wikihow.com/Main-Page: Ah, WikiHow. Chances are you've heard of it. What you might not know though is that along side the odd, disturbing, and confusing content that has popularized the site, there's a lot of good how-to tutorials.