Development

Database

• Database Browser Portable - Manage multiple databases
• SQLite Database Browser Portable - Simple SQLite database management tool

Packaging

• NSIS Portable - Windows installer and launcher creation
• PortableApps.com Installer - the easy way to package portable apps

Portablization

• PortableApps.com Launcher - make apps portable without writing code

Programming Environment

• SWI-Prolog Portable - Prolog programming environment

Servers

• XAMPP - Apache, mySQL, PHP, phpMyAdmin and more in an integrated package

Text Editors & Integrated Development Environments

• AkelPad Portable - lightweight plaintext editor
• Frhed Portable - free hex editor
• Geany Portable - Text editor and basic IDE
• gVim Portable - advanced, feature-rich text editor
• HM NIS Edit Portable - NSIS development environment
• Notepad++ Portable - A full-featured text editor with syntax highlighting
• Notepad2 Portable - Simple, lightweight text editor
• Notepad2-mod Portable - Lightweight text editor

Web Editors

• KompoZer Portable (formerly Nvu) - The easy-to-use web editor