Things you can put in your page

A catalogue of 500 public pages that work inside an iframe: 140 tools and 360 games. Each has the snippet already written, and each was probed before it was listed rather than collected from a list.

Every entry was actually tried

A catalogue of embeddable things is only worth having if the things embed. Each URL here had to answer 2xx, permit framing in both its X-Frame-Options and its CSP, and serve a title matching the one we list. 847 candidates failed one of those checks and are not here — which is the number that makes the 500 that are here mean something.

The check has to happen at build time

A browser fires the load event on a frame it refused to render, so a page cannot tell whether the thing it just embedded is showing anything. That is the whole reason this is a catalogue rather than a search: the verification is impossible from the place where it matters, so it is done somewhere it is possible.

They are other people's pages, and we say so

Nothing here is ours. Every entry names and links the provider, shows when it was last verified, and describes what it is in our own words rather than theirs. If one goes away, the entry goes with it on the next regeneration.

Questions

How do I embed one of these?

Copy the snippet from the page for the thing you want. It is an ordinary iframe with the sandbox attributes already set, so it works in any HTML — a static site, a CMS block, a docs page, a Notion embed. Nothing needs an account and nothing needs a script tag.

Will the embed actually load, or will it be blocked?

Every entry here was probed before it was listed: the page had to answer 2xx, its X-Frame-Options and CSP had to permit framing, and the title it served had to match the one we list. 847 candidates failed one of those and are not in the catalogue.

Why does a page that loads fine sometimes refuse to embed?

Because framing is decided by the page being framed, not by the page framing it. A site sends X-Frame-Options or a CSP frame-ancestors rule and the browser enforces it. The frustrating part is that a blocked frame still fires a load event, so from the outside a refused embed looks exactly like a working one — which is why the check happens when the catalogue is built rather than when you paste the snippet.

Is it safe to embed something from another site?

An iframe is a separate document with its own origin, so it cannot read your page, your cookies or your storage. What it can do is navigate, open windows and take the space you give it — which is why every snippet here carries a sandbox attribute limiting it to running scripts, and why none of them is granted same-origin access.