fasterer - will suggest some speed improvements in Ruby application according to fast-ruby recommendations
Sysdig - open source, system-level exploration: capture system state and activity from a running Linux instance, then save, filter and analyze. Kind of strace + tcpdump + lsof + awesome sauce. With a little Lua cherry on top.
fasterer - will suggest some speed improvements in Ruby application according to fast-ruby recommendations
New Old Stock - vintage photos from the public archives free of known copyright restrictions.
Great set of click effects for links and buttons
phpredmin - a Redis PHP GUI. Looks nicer than phpRedisAdmin.
PsySH - a runtime developer console, interactive debugger and REPL for PHP. Looks like the coolest dev tool after xDebug. But could not run debug correctly on basic Vagrant+Apache due to missing $HOME env param.