Simple Binary Encoding (SBE) - High Performance Message Codec

High Performance data structures and utility methods for Java

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

Fast FIX protocol library for the JVM

Falcon, the open source ultra low-latency FIX engine for Java

Python composable command line interface toolkit

Scene Builder is a visual, drag 'n' drop, layout tool for designing JavaFX application user interfaces.

Java library for creating text-based GUIs

Vaadin Server-Side Browserless Containerless Unit Testing

Rich is a Python library for rich text and beautiful formatting in the terminal.

A .NET library that makes it easier to create beautiful console applications.

The lean application framework for Python. Build sophisticated user interfaces with a simple Python API. Run your apps in the terminal and a web browser.

Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps …

Multiplatform command line interface parsing for Kotlin

A terminal UI for tshark, inspired by Wireshark

A SBB/CFF/FFS commandline based timetable client. Project started at make.opendata.ch.

C4-PlantUML combines the benefits of PlantUML and the C4 model for providing a simple way of describing and communicate software architectures