Source Code Viewer
View a page's HTML source with syntax highlighting. Try fetching a URL directly, use your browser's built-in view-source, or paste HTML source to view it formatted.
Recommended Settings
Pro Tips
- •"Open View Source" uses your browser's own view-source: feature, which reliably works regardless of the target site's CORS policy, since it's a native browser feature rather than a JavaScript fetch
- •The direct "Try Fetch" option only works for sites that explicitly allow cross-origin requests, which most websites don't enable by default
- •This shows the raw HTML delivered by the server, not necessarily what's currently in the page's live DOM if JavaScript has modified it after loading
- •Syntax highlighting here is a simplified approximation for readability - it doesn't replace a full-featured code editor's highlighting for edge cases
Most Popular
Most users use the "Open View Source" button for the most reliable way to inspect any page's raw HTML
When to Use This Tool
Inspect the raw HTML of a page to debug a layout or SEO issue.
View how another website structured its HTML for a technique you want to learn from.
Check the output of a template engine or static site generator by viewing the final rendered HTML.
Confirm that meta tags, structured data, or other head elements are actually present in a page's source.
How It Works
Attempt to fetch the given URL directly - this only succeeds if the target site allows cross-origin requests
Alternatively, open the browser's native view-source: view for the URL, which works regardless of CORS restrictions
Apply basic syntax highlighting to tags, attributes, and comments in the source code, then display it in a formatted, readable view
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Browser native Fetch API and view-source: protocol for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
Why does "Try Fetch" often fail?
Most websites don't send the CORS headers required to let another site's JavaScript read their page content directly. This is a standard browser security restriction that applies to nearly all cross-origin fetch requests.
Does "Open View Source" always work?
It works in most Chromium-based browsers (Chrome, Edge, and similar) since view-source: is a native browser feature, not subject to the same cross-origin restrictions as a JavaScript fetch. Some browsers may handle it differently or restrict it in certain contexts.
Is my data sent to a server?
No. Viewing and highlighting pasted source code happens entirely locally in your browser. If you use the URL fetch option, that request goes directly from your browser to the target site, not through this tool's own servers.
Does this show the live, JavaScript-modified page content?
No. This shows the raw HTML as originally delivered by the server. If a page uses JavaScript to modify its content after loading, those changes won't appear here - you'd need your browser's DOM inspector for that.
Can I view source code other than HTML?
Yes, the paste box accepts any text, including CSS, JavaScript, or other source code - though the syntax highlighting is tuned specifically for HTML-style tags and attributes.