https://gist.github.com/bradtraversy/61171a9b81586f5bc4c0ca1e2beb59ab

GENERATORS:

• Text Content Generator - http://www.lipsum.com
• Favicon Generator - http://tools.dynamicdrive.com/favicon
• Data Generator - https://mockaroo.com/
• Mobile Mockup Generator - https://mockuphone.com
• Logo Generator - https://www.logaster.com
• UUID Generator - https://www.uuidgenerator.net/
• Hash Generator - https://passwordsgenerator.net/sha256-hash-generator/
• Ultimate Code Generator - https://webcode.tools/

IMAGE RESOURCES:

• Free Stock Images - https://www.pexels.com
• Free Stock Images With Great API - https://unsplash.com/
• Free- Vectors, mockups - https://www.freepik.com
• Dummy Image Placeholders - https://source.unsplash.com/
• Dummy Image Placeholders - https://placeholder.com
• Free Icons - https://www.iconfinder.com

CODE OPTIMIZATION:

• Minify JS & CSS - http://minifier.org
• Code Optimization Tools - https://codebeautify.org
• Code Diff Checker - https://www.diffchecker.com

CONVERTERS:

• ES6+ & JSX Compiler - https://babeljs.io/repl
• Sass Converter - https://www.sassmeister.com/
• Less Converter & More - http://www.webtoolkitonline.com
• Markdown Editor - https://stackedit.io
• Jade Converter - http://www.html2jade.org/

IMAGE COMPRESSION:

• Compress All Images - https://compressor.io/compress
• Compress JPG - http://jpeg-optimizer.com/
• Compress PNG - https://tinypng.com/

VALIDATION & COMPATIBILITY:

• Validate HTML - https://validator.w3.org
• Validate CSS - https://jigsaw.w3.org/css-validator
• Check Browser Compatibility - https://caniuse.com/
• ES6+ Compatibility Table - https://kangax.github.io/compat-table/es6/

IN BROWSER CODING:

• Client Side Code - https://codepen.io
• Client Side Code - https://jsfiddle.net
• Client Side Code - http://liveweave.com
• Server Side Code - https://repl.it

SNIPPET TOOLS:

• Snippet Manager - https://gist.github.com
• Snippet Manager - https://pastebin.com

COLOR & DESIGN:

• Create Color Schemes - https://color.hailpixel.com
• Get Color Schemes of Websites - http://stylifyme.com
• Create Gradients - https://uigradients.com
• CSS Button Generator - http://css3buttongenerator.com
• HTML Entity Lookup - http://entity-lookup.leftlogic.com/

RESPONSIVENESS:

• Device Testing - http://www.responsinator.com
• What’s My Browser Size - https://www.webpagefx.com/tools/whats-my-browser-size/

WIREFRAME:

• In Browser Wireframing - https://app.moqups.com
• Very Basic In Browser Wireframing - https://wireframe.cc

SPEED TEST:

• Speed & Performance Testing - https://tools.keycdn.com/speed
• Pingdom Speed Test - https://tools.pingdom.com/

OTHER:

• Public API Resources - https://github.com/toddmotto/public-apis?utm_source=mybridge&utm_medium=blog&utm_campaign=read_more
• Organized Docs for all Popular Web Technologies - https://devdocs.io