- Livereload
- Can I use : Browser support
- Outdated browser : Detects outdated browsers and advises users to upgrade to a new version
- CSS autoprefixer
- Cmder : Portable console emulator for Windows
- BrowserSync : Syncronize multiple devices to test responsive / app
- PhoneGap : Create apps using HTML, CSS, JS
- HammerJS : Touch gesture for webpage
- Lea Verou's projects : Prism "syntax highlighter", CSS3 browser test, Contrast ratio, ...
- Flat Icons : PNG icon generator
- Icon Melon : SVG icon generator
- Icon Monstr : PNG & SVG icon generator
- Font Awesome : Webfont icons
- Kuler : Color wheel, color schemes
- Material Palette : A palette on two click
- Pltts : Color schemes
- BrandColors
- Web Colour Data : Get colors of a particular website
- Dribbble
- Niice
- Unicode Table
- Unify : Unicode support on browsers and devices
- Compressor.io : Best image compressor online
- The Stocks : The best royalty free stock photos in one place
- Freepik : Free Vectors, PSD, Icons and photos
- Subtle Patterns : Patterns gallery
- The Pattern Library
- Place it : Visual creations presentation
- Brick 'Webfonts that actually look good'
- Google Font
- Adobe Edge Web Fonts
- Font squirrel
- Velvetyne : Free-of-charge typefaces
- Online font converter : Font converter
- Blugraphic : Vector & Psd Freebies : Templates, Mock-ups, Websites, Icons
- Freebiesbug : Latest free PSDs & other resources for designers
- Dribbble Freebie : 430+ FREE storyboard illustrations