Mac OSX software
Industrial-strength software with a feather-light feel.
Webmaster software for Mac OSX
A number of apps, free and paid which will scan your website for broken links, generate an xml sitemap for submission to Google, check page load speed and find which elements are slowing your page down, make SEO checks or validate your HTML.
Utilities, software and screensavers
Productivity, security and lifestyle software for Mac OSX
A number of apps, free and paid which will increase your productivity and enrich your life.
Website crawlers / spiders
A curated list of web crawling software for Mac OSX
A number of apps, free and paid which will scan your website and perform various functions such as create sitemaps, check markup, make SEO checks, archive the site or convert the format.
Cross-platform, free, no installation
The first of a series of browser-accessible tools. This http request / response tool allows you to try different requests and easily see all details of the response.