Product Comparisons - Compare any 2 software products
SmallDevTools - Handy developer tools with a delightful interface
TestBox - Test drive your software options before you buy
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
Profitable developer tools database - A database of 103+ hand-curated profitable developer tools