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About Source Code Viewer Online
This tool fetches the raw HTML, CSS, JavaScript, and other assets from any public URL and displays them with syntax highlighting. You see exactly what the server sent, before any client-side modifications.
Useful when learning how a site is built, when extracting markup for a portfolio screenshot, when validating that the rendered DOM matches your expectations, or when reverse-engineering a small piece of layout you admire.
The tool fetches only what the URL serves — it doesn't execute JavaScript, so dynamically-generated content visible in a normal browser may not appear here. For that, use the rendered version of the page via DevTools.
How to use this tool
How to view a web page's source code online
Enter the page URL
Paste the public web address into the URL field. The https:// prefix is optional — the tool adds it if you omit it. Private IPs and localhost are blocked.
Fetch the source
Press the button. The HTML is fetched server-side and displayed directly in the viewer. This is the raw server response before JavaScript runs — not the post-execution DOM. Single-page apps may show only a minimal HTML shell.
Read the source inline
The source is displayed in a scrollable code block. Use your browser's built-in Ctrl+F (or Cmd+F) to search for specific tags, meta content, structured data blocks, or script URLs within the fetched HTML.
Save as a file if needed
Use the accompanying download option to save the source as a .txt file for offline inspection. This viewer and the source-code-downloader tool fetch from the same endpoint — the viewer adds inline display while the downloader triggers a file save directly.