Apps to Text Based Format

Textile is a lightweight, server-side PHP library designed for parsing and converting Textile markup into well-formed HTML. It provides a simple, human-readable syntax for text formatting, making it easy to create structured content without writing raw HTML. Ideal for developers integrating markup capabilities into web applications.

Graphviz is a powerful open-source graph visualization software package. It allows users to create complex diagrams and graphs from descriptive text files using the DOT language. Ideal for professionals, researchers, and developers needing to represent structured information visually.

PlantUML is an open-source tool that allows users to generate a wide variety of UML and other diagram types from a simple human-readable text description. It supports sequences, use case, class, activity, component, state, object, deployment, timing diagrams, and more, making it accessible and efficient for technical documentation and visualization.

Freeplane is a powerful and free mind mapping software that allows users to organize ideas, create outlines, and manage information in a hierarchical structure. It leverages the power of visual organization to facilitate brainstorming, project planning, and knowledge management.

OmniGraffle is a robust diagramming and vector graphics application designed for macOS and iOS. It empowers users to create a wide range of visuals including precise flowcharts, complex network diagrams, organizational charts, and intricate illustrations.

Simplenote is a minimalist note-taking application designed for speed and efficiency. It provides a clean interface across multiple platforms, focusing on text-based notes with robust synchronization and versioning capabilities. Ideal for capturing ideas quickly and accessing them anywhere.

StarUML is a robust modeling platform supporting a wide range of diagrams including UML, SysML, and BPMN. It offers powerful features for software engineering, data modeling, and business process modeling.