Useful Dev Tools
HTACCESS Generators
MYSQL Generators
Analyze Website speed and Performance
- nibbler.silktide.com
- sitespeed.io
- gtmetrix.com
- experte.com/pagespeed - Test pages in Bulk and export for reviewing.
Text Editing Tools
- atom.io from Github
- sublimetext.com
Image Tools
- placephant.com - Image placeholders
Security & SSL Tools
- Website's Headers for Security Features - securityheaders.com
- SSL Checker - http://www.sslshopper.com/ssl-checker.html
CSS Tools, Frameworks, Button Generators
- semantic-ui.com - Semantic empowers designers and developers by creating a language for sharing UI
- purecss.io - A set of small, responsive CSS modules that you can use in every web project
- css3buttongenerator.com
- cssbuttongenerator.com
Emulators and Tools For Testing Your Website on Desktop & Mobile Devices
- dimensionsapp.com - The definative way for designers to test responsive websites.
- viewportsizes.com - view port sizes database
- ami.responsivedesign.is - tool for comparing responsive designs in different devices
- responsinator.com
- screenfly
- mobilephoneemulator.com
- mobilemoxie.com/handset-emulators/phone-emulator
- responsivepx.com
- res.ponsive.com
- ipadpeek.com
- brickandmobile.com/mobile-emulator
- jamus.co.uk/demos/rwd-demonstrations/
- ready.mobi
Various Generators
- html-ipsum.com
- chancejs.com - Chance is a minimalist generator of random strings, numbers, etc. to help reduce some monotony particularly while writing automated tests.
- www.contentsnippets.com - a collection of content for use on websites