Herramientas

Editores en linea

• https://jsfiddle.net/ (U: Waldo)
• https://thimble.mozilla.org/ (U: walddo) - Está en español

Validadores

• JSHint.com This is JSHint, a tool that helps to detect errors and potential problems in your JavaScript code.
• https://jscompress.com/
• https://validatejavascript.com/

JSON

• https://jsonlint.com/
• https://www.cleancss.com/json-minify/
• https://www.cleancss.com/json-validator/
• https://www.cleancss.com/json-editor/
• https://www.cleancss.com/json-beautify/
• https://jsoncompare.com/#!/simple/

Colors

• https://webgradients.com/ Is a free collection of 180 linear gradients that you can use as content backdrops in any part of your website. Easy copy CSS3 crossbrowser code and use it in a moment! We've also prepared a .PNG version of each gradient. As a bonus, there are packs for Sketch & Photoshop.

Icons

• http://www.zondicons.com/
• https://fontawesome.com/
• http://glyphicons.com/
• http://entypo.com/
• https://linearicons.com/free
• https://ionicons.com/
• http://simplelineicons.com/

Fonts

• https://fontdatabase.app/index.html