Developer Utilities · Free tool
Iframe Generator
Generate clean iframe embed code with sandbox, lazy-load, fullscreen, and accessibility attributes. Live preview.
Updated May 2026
Generated code
<iframe src="https://example.com" width="100%" height="400" loading="lazy" referrerpolicy="no-referrer-when-downgrade" allowfullscreen title="Embedded content"></iframe>Live preview
Some sites block embedding via X-Frame-Options or Content-Security-Policy. If preview is blank, that's why — the iframe code still works on sites that allow it.
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What it does
Generate a clean <iframe> tag for embedding any URL — with the security attributes most embed builders forget: loading="lazy" for performance, sandbox flags for untrusted content, accessible title for screen readers. Includes a live preview so you know it’ll render before you paste.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/iframe-generator" width="100%" height="720" frameborder="0" loading="lazy" title="Iframe Generator" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>How to use it
- Paste the URL you want to embed.
- Set width and height (px or %).
- Pick options: lazy-load, fullscreen permission, sandbox.
- Copy the generated tag into your HTML.
Frequently asked questions
- Why is the preview blank for some sites?
- Many sites (Google, Facebook, banks) block being embedded via X-Frame-Options or Content-Security-Policy headers. The iframe code still works on sites that allow it; the live preview just can't render those sites here.
- When should I use sandbox?
- When embedding untrusted content (user-uploaded HTML, third-party widgets you don't control). Sandbox blocks scripts, popups, form submission, etc., by default; allow only what you actually need.
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