An offline Windows app that helps developers in their daily tasks
codinDevtoys is a very handy collection of tools for your daily dev grind. Lots of useful sections like Regex Tester, Markdown Preview, Image compressor, JSON Formatter, and more.
It is Free, open-source, and offline!
Ray is a lightweight desktop app that helps you debug your PHP app. You can get a free demo that can be unlocked with a license.
You can use Ray in WordPress by manually cloning the repo or installing the plugin via the Plugins section on the WordPress admin UI.