View Rendered Source

Compare a page's raw HTML with its rendered DOM, and see exactly what JavaScript changed. Search engines and AI crawlers do not always run JavaScript. View Rendered Source shows you what your server sends, what the browser builds, and the difference between them, line by line. 📰 Featured in Search Engine Land, Ahrefs, Search Engine Journal ━━━━━━━━━━━━━━━━━━━━ 🔍 SEE THREE PANELS, SIDE BY SIDE • Raw Source: the HTML the server sends, before JavaScript runs. The same as "View Source", auto-formatted for easy reading. • Rendered DOM: the page after the browser builds it and JavaScript runs. • Difference: every line that JavaScript added, removed or changed, highlighted so you can spot the unexpected. ━━━━━━━━━━━━━━━━━━━━ 📈 FOR SEOs JavaScript can hide, change or break the tags search engines care about. Use the SEO filter in the Difference panel to see only those tags, and exactly how they changed when the browser rendered the page: • Titles, meta descriptions and robots tags • Canonicals and hreflang • Headings and links • Structured data (JSON-LD) Find problems such as: • A noindex tag that JavaScript adds • A canonical that exists only after rendering • A tracking pixel that closes the <head> early, so your title and canonical fall into the <body> • Schema that appears, or disappears, after rendering • Much more Use Inventory to see key page elements in the raw and rendered versions at a glance. ━━━━━━━━━━━━━━━━━━━━ 🤖 AI CRAWLERS SEE ONLY THE RAW SOURCE 🚨 GPTBot, ClaudeBot and PerplexityBot do *NOT* run JavaScript. If your content exists only in the Rendered DOM, ChatGPT, Claude and Perplexity never see it. Check the Raw Source panel to see what they get. ━━━━━━━━━━━━━━━━━━━━ 💻 FOR DEVELOPERS React, Vue, Svelte, Next.js and Nuxt can render different HTML on the server and in the browser. The Difference panel shows that mismatch, line by line. DevTools shows only the live DOM. It does not show the raw HTML the server sent, and it has no diff. See what tag managers, chat widgets and A/B tests are doing to your page. ━━━━━━━━━━━━━━━━━━━━ ✅ FREE FEATURES • Raw Source, Rendered DOM and Difference panels • SEO filter for titles, canonicals, headings, hreflang, JSON-LD and more • One-click inventory of key page elements • Find, filter, copy and download in every panel • Auto-formatted source with syntax highlighting • Light and dark theme Free forever. No account needed. ━━━━━━━━━━━━━━━━━━━━ ⭐ PRO: SAVE, COMPARE AND SHARE SNAPSHOTS Migrating, redesigning or shipping to production? Take a Snapshot before, and compare after. 📸 Snapshots: save the raw, rendered and diffed source with a capture date and a private note 📚 Snapshots library: filter by date, title, URL or note, and reopen any Snapshot ⚖️ Compare any two Snapshots: before and after a migration, or staging and production 🔗 Share a public link: anyone can open it, no extension needed ✉️ Email support Try Pro free for 7 days. ━━━━━━━━━━━━━━━━━━━━ 🚀 HOW TO USE 1️⃣ Open any web page. 2️⃣ Click the View Rendered Source icon, right-click the page, or press Alt+U. 3️⃣ Compare the Raw Source, Rendered DOM and Difference panels. ━━━━━━━━━━━━━━━━━━━━ https://viewrenderedsource.com 💬 Problems, questions or suggestions? Email [email protected]