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Full-featured Python IDE with editor, debugger, unit testing, error checking, refactoring, and much more. Designed for Python, for a more productive development experience.

IntelliJ IDEAThe Leading Java and Kotlin IDEThe IDE that makes development a more productive and enjoyable experience

Light Table is the next generation code editor. Light Table Connects you to your creation with instant feedback and showing data values flow through your code.

Typora — a markdown editor, markdown reader.

A powerful Markdown editor for researchers and journalists.

Fits the Pieces TogetherDevelopment Environment, Tooling Platform and Application Framework.