Tools that help with web development. Things like validators, optimizers compressers etc.
Perhaps not so much a development tool as a business tool, if you have clients with websites, SiteUptime should help keep you on top of things with 24/7 site uptime monitoring.
They allow 1 free site per account, with advanced packages starting at 3 sites for $5/month, can monitor web servers, email servers and FTP servers and paid accounts have the ability to recieve SMS Alerts.
Jungle disk is software (win, lin, mac) that allows you to easily connect to Amazon's S3 storage service and provides a GUI for passing files back and forth. A snap to set up, now you have no excuse for not having offsite storage that doesn't double as your dedicated server.
Rob Goodlatte has thrown together a simple bookmarklet that can help you to align text to a baseline grid. This looks pretty handy for adjusting the spacing of your text, helping to align text on an evenly distributed vertical grid. Learn more about the concept on A List Apart.
An HTML tutorial written specifically for working adults who needed to learn HTML quickly and easily
. If you need to get some clients up to speed about some of the basics, this could come in quite handy.
A PHP time tracking script for keeping tabs on client work. They offer a hosted solution, but the script is downloadable for local use. It is licensed under the GPL, and would be an interesting candidate for mixing in some ajaxy goodness...
Wow, this is useful. For example, opening as a window in the bottom of Firefox, the element inspector and xmlHTTPRequest logger provide great information, and a series of small tabs are available for you to check the CSS, XML, JS and Box properties of an element.
A cool little app that will output a color palette based on an image that you upload.
A project of Forty Media, Web Design Miracle Search allows you to search the finest web design websites for inspiration or answers
. At the time of posting the project is in beta format. Head on over and try it out!
A tool that will take a given url and test it's cacheability by examining the HTTP headers of the document. Links to a bookmarklet that can be used for push-button testing of a pages cacheability.
Given an URI, this tool will measure, from multiple locations on the internet, the response time of the indicated document (and any link elements in the header of the document) in addition to it's size and status code.
A great little tool for helping webmasters run a whole gamut of tests on our websites. Input the URI to be tested and it will return a list containing links for the input url to common testing services, like Bobby, the W3C validator and many others.