Source Code Viewer — HTML, CSS, JS, JSON & XML Formatter

View & format source code with syntax highlighting — HTML, CSS, JavaScript, JSON & XML. A clean source code viewer & formatter.

Tired of staring at your browser's bland, unstyled source viewer? Source Code Viewer is here to fix that. View — and format — the source of any web page with proper formatting and beautiful syntax highlighting, right from the "View Page Source" context menu or with a single click on the toolbar icon. No more walls of unreadable text. Just clean, colorized code, the way it should be. ✨ What you get: • Beautiful syntax highlighting for HTML, CSS, JavaScript, JSON & XML • Automatic formatting & beautification — pretty-print minified CSS, JS, JSON & HTML • Automatic in-place formatting when you open a raw CSS/JS/JSON/XML file directly • A range of light & dark themes • Word wrap, line numbers & code folding • Clickable links to jump between resources without leaving the viewer • One-click switch back to the browser's native source view • Available in multiple languages Great for developers, web designers, and anyone who needs to view or format HTML, CSS, JavaScript, JSON, or XML source code — a clean source code viewer, JSON/XML viewer, and code formatter in one.