Embed Tester
Test if any URL can be embedded in an iframe. Check X-Frame-Options and Content-Security-Policy headers.
Embed Code
Preview
About Embed Testing
X-Frame-Options
The X-Frame-Options HTTP header indicates whether a browser should render a page in an iframe. DENY blocks all framing, SAMEORIGIN allows only same-domain.
Content-Security-Policy
The Content-Security-Policy frame-ancestors directive specifies valid parents that may embed a page. It supersedes X-Frame-Options.
Sites That Block Embedding
Google, Facebook, Twitter, GitHub, most banking sites
Sites That Allow Embedding
YouTube, Vimeo, CodePen, Google Maps, FreeWebTools
ℹ️ About Embed Tester
The Embed Tester helps you create high-quality output on demand, for free, right in your browser. Test if any URL can be embedded in an iframe. Check X-Frame-Options and Content-Security-Policy headers. Our Embed Tester uses smart defaults but lets you customize every setting so the final result fits your project. Because everything runs client-side, your inputs and generated outputs remain private — nothing is uploaded or logged. Use it as often as you like, in personal or commercial projects, with no attribution required.
💡 Use Cases
💎 Pro Tips
- Tweak the settings one at a time so you can see how each option affects the Embed Tester output.
- Click the regenerate or randomize button multiple times — you often find a better result on the third or fourth attempt.
- Copy several candidates to your clipboard or a notes file and compare them before committing to one.
- If the Embed Tester supports exporting, save important outputs immediately — nothing is persisted server-side.
- Combine outputs from this Embed Tester with other tools (formatters, previews, checkers) to polish the final result.
❓ Frequently Asked Questions
Yes. Anything generated with the Embed Tester is yours to use freely in personal or commercial projects with no attribution required.
Yes, fully free with no signup, no paywall, and no watermark on the output.
Nowhere on our side. The Embed Tester runs in your browser and nothing is retained after you close the tab, so save important results locally.
Yes. Each Embed Tester exposes configurable options so you can tailor the style, length, or format to match your needs.
The Embed Tester uses strong randomness and varied templates so that each generation is likely to be unique. For guaranteed uniqueness across a large set, verify the final collection with your own deduplication step.
Yes. The interface is responsive and works on iOS, Android, and all modern mobile browsers.