A "zooming" presentation editor

cbmbasic, a portable version of Commodore's version of Microsoft BASIC 6502 as found on the Commodore 64

Remove AI features, telemetry data reporting, sponsored content, product integrations, and other annoyances from web browsers.

A german language Textbook on Web Development. This ist the source (md, nanoc).

An interactive JavaScript sandbox

Better playgrounds that work both for Objective-C and Swift

A List of Awesome Swift Playgrounds

OSX app for drag and drop encryption

Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed

An Open Source Educational IDE.