Bootstrap

A leading framework for responsive web development using HTML, CSS, and JavaScript

Alternative download from external server (availability not guaranteed):

Alternative download from external server (availability not guaranteed):

Put code or text from multiple files up side by side for easy comparison and debugging

Official troubleshooting tool that diagnoses and fixes common Office, Outlook, and Microsoft 365 issues automatically

Free terminal emulator providing Linux command-line tools, package management, and remote server access for developers

Advanced free utility for investigating and validating phone numbers using online traces and intelligence sources

Excellent program that teaches programming skills to newcomers

Lightweight, streamlined system that boosts performance on older PCs by removing unnecessary features and bloatware