CrossUI is a free Cross-Browser Javascript framework
Concise spatial query and representation system (c-squares)
ErlMySQL is a MySQL client (driver) written in Erlang.
A pure JS client for interacting with server-side RESTful resources
Tools Slightly Above the Runtime
MySQL Connector extensions for LibreOffice
Very easy to use databrowser and query console for SQLite3 based on QT
Free tool designed to make client side hacking easy