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The ultimate CSS tools for web designers | CSSmatic
Gradient generator, border radius, noise and box shadow
geuis/helium-css · GitHub
Helium is a tool for discovering unused CSS across many pages on a web site
Free Mobile Performance Testing with Akamai's Mobitest
Test your website performance on a mobile device
Instagram 2 EyeEm
An awesome tool to migrate your @instagram photos w/titles, dates and geoloc to @EyeEm thanks to @itnok
Fontello - easy iconic fonts composer
Compose your own web font to slim the download size
The Grid System
The grid system is an aid, not a guarantee. It permits a number of possible uses and each designer can look for a solution appropriate to his personal style. But one must learn how to use the grid; it is an art that requires practice.
Filepicker.io | Upload the Web
A better upload dialog for the web Your content, where you want it. Upload files directly from Dropbox, Facebook, your computer, and more!
WebPagetest - Website Performance and Optimization Test
Is It Old?
Ceck your link before posting it on Twitter
ProtoFluid - HTML5 and CSS3 Web App Prototyping
Test your @media queries and web app on various screen sizes
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