Arduino IDE library
A fast and lightweight IDE
Simple crossplatform IDE for NASM, MASM, GAS and FASM languages
Open-source, cross platform Qt based IDE for reverse-engineering
A web based file manager, web IDE / browser based code editor
RStudio is an integrated development environment (IDE) for R
Phoenix is a modern open-source Code Editor for the web
AstroNvim is an aesthetic and feature-rich neovim config
Visual editor for open FPGA boards
Cloud & Desktop IDE Platform
A community-driven modular vim/neovim distribution
An IDE layer for Neovim with sane defaults
A free C, C++ and Fortran IDE
Rapid applications development tool and libraries for FPC
A powerful, lighweight and cross-platform C/C++ IDE
Lightweight and easy to use cross-platform C++ IDE
The IDE for competitive programming
AndroidIDE is an IDE for Android to develop full featured Android apps
TclTk-IDE for development and testing tcltk-apps
uIDE (Micro IDE) is a free, open-source IDE for GPUtils
Learn Java the easy way!
Kile is a feature-rich LaTeX editor
an OSGi-based Swing Application Framework