Here are some of the apps and tools I created. You can find others on my GitHub page.
A minimalist note taking application.
Qt port of SFXR, a sound effect generator, to generate retro-gaming like sound effects.
An extensible markup previewer, capable of showing texts written in Markdown, reStructuredText, Asciidoc and other markup languages.
Command line tools
A command-line-based, sqlite-powered TODO list.
A Doxygen input filter to document QML files.
Generates QObject properties from a YAML file.