- 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/
- 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
- Minify JS & CSS - http://minifier.org
- Code Optimization Tools - https://codebeautify.org
- Code Diff Checker - https://www.diffchecker.com
- 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/
- Compress All Images - https://compressor.io/compress
- Compress JPG - http://jpeg-optimizer.com/
- Compress PNG - https://tinypng.com/
- 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/
- 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 Manager - https://gist.github.com
- Snippet Manager - https://pastebin.com
- 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/
- Device Testing - http://www.responsinator.com
- What's My Browser Size - https://www.webpagefx.com/tools/whats-my-browser-size/
- In Browser Wireframing - https://app.moqups.com
- Very Basic In Browser Wireframing - https://wireframe.cc
- Speed & Performance Testing - https://tools.keycdn.com/speed
- Pingdom Speed Test - https://tools.pingdom.com/