This page is a work in progress and more for my own benefit than anyone elses.  It is an easy way for me to keep a list of certain online resources that I may not use a lot but which are just the thing when I do need them.

XPath Query Expression Tool

Simple straight forward online tool for testing out xpath expressions against xml of your choice or theirs.

RegExr: Online Regular Expression Tester

This one is a flash application but its as full featured and interactive as any expression tester you could ever want.  It uses the ActionScript 3 regex engine so its not going to work perfectly for .Net.  If you need something .Net specific try Derek Slager’s online tester.

js2coffee.org

Awesome site for learning CoffeeScript and for converting your legacy javascript files to more maintainable coffee script. Converts both ways and can be used as an online editor for both, converting from one to the other on the fly as you type!

JSLint

Got one of those pesky problems that is likely the result of malformed Javascript being interpreted not the way you intended by an overly forgiving interpreter?  JSLint will check it with merciless exactitude for you.

css2sass

Converts your legacy css files to SASS (scss) files.

Lessify

Similar to css2sass but outputs to LESS css. By its own admission this cite is pretty basic in what it does an experimental. Hopefully it will blossom out.

W3C XHTML Validator

What can I say, the best way to make sure your HTML is XHTML compliant.

PInvoke.Net

From the site: “PInvoke.net is primarily a wiki, allowing developers to find, edit and add PInvoke signatures, user-defined types, and any other information related to calling Win32 and other unmanaged APIs from managed code.”

Graham King – Credit card numbers

Provides a list of randomly generated credit card numbers for all major card types that will pass the initial check-sum validation of most e-commerce sites. Immensely handy if you are testing out an e-commerce site or using the PayPal sandbox. The page also contain links to other useful information about credit card number and CVC algorithms, etc.

Ajaxload

Simple little site to generate animated “loading” gifs (a.k.a. “spinners”) styled to match your website.