Paste a short HTML snippet to embed a JSON Formatter, Base64 encoder or UUID Generator on another site. The iframe runs the tool in the visitor's browser; nothing is uploaded. The snippet includes a visible Powered by LocalFirstTools link outside the iframe so the credit is a real backlink, not a frame-only mention.
Full tool: /json-formatter
<iframe src="https://localfirsttools.com/embed/json-formatter" title="JSON Formatter" width="100%" height="420" loading="lazy" style="border:1px solid #e3e8ed;border-radius:8px;width:100%;max-width:100%"></iframe> <p style="margin:8px 0 0;font:13px/1.4 system-ui,sans-serif"> <a href="https://localfirsttools.com/json-formatter">Powered by LocalFirstTools</a> </p>
Live preview
Full tool: /base64
<iframe src="https://localfirsttools.com/embed/base64" title="Base64 Encode / Decode" width="100%" height="380" loading="lazy" style="border:1px solid #e3e8ed;border-radius:8px;width:100%;max-width:100%"></iframe> <p style="margin:8px 0 0;font:13px/1.4 system-ui,sans-serif"> <a href="https://localfirsttools.com/base64">Powered by LocalFirstTools</a> </p>
Live preview
Full tool: /uuid-generator
<iframe src="https://localfirsttools.com/embed/uuid-generator" title="UUID Generator" width="100%" height="280" loading="lazy" style="border:1px solid #e3e8ed;border-radius:8px;width:100%;max-width:100%"></iframe> <p style="margin:8px 0 0;font:13px/1.4 system-ui,sans-serif"> <a href="https://localfirsttools.com/uuid-generator">Powered by LocalFirstTools</a> </p>
Live preview
No. Each embed is a static page of JavaScript. The visitor's JSON, Base64 or generated UUID stays in their browser, the same as the full tool.
A link inside an iframe counts as a link on localfirsttools.com, not on your page. The snippet puts a visible dofollow link in your HTML, next to the frame.
You can change the iframe's width, height and border on your page. The tool UI inside the frame stays the compact embed layout so it stays fast.
The /embed explainer is. The /embed/json-formatter, /embed/base64 and /embed/uuid-generator pages are noindex and omitted from the sitemap so they do not duplicate the full tools.
No. The embed routes send Content-Security-Policy frame-ancestors * and unset X-Frame-Options. The rest of the site still refuses framing.
JSON Formatter, Base64 encode/decode and UUID v4. For every option, send visitors to the full tool pages.