Drop a Calcflux converter or calculator into any web page with a single <iframe> tag. No JavaScript, no API key, no signup. Free forever, with a small attribution link back to Calcflux.
How it works
Pick a tool below.
Copy the snippet.
Paste into the HTML / custom-block section of your CMS (WordPress custom HTML block, Ghost HTML card, Squarespace code block, etc.).
License
Free to embed on any public website, commercial or personal, on the condition that the “Powered by Calcflux” attribution link below the tool stays intact and remains a normal, indexable <a> link to the canonical tool page. Don't add rel="nofollow" or rel="sponsored" — it's an editorial link, not a paid one.
Sizing
All embeds are responsive down to mobile (320px wide). Heights below are the minimum to avoid the tool clipping; you can go larger if your layout allows.
If the iframe is blocked
Calcflux sets Content-Security-Policy: frame-ancestors * on every /embed/ route, so any public website may iframe these tools. If the embed shows up blank or shows a "refused to connect" console error in your browser, the host page (your site) almost certainly has its own Content-Security-Policy restricting which sources it will iframe. Add frame-src https://www.calcflux.com (or extend an existing frame-src) to your CSP and the embed will load. Sites without a CSP (the WordPress / Ghost / Squarespace defaults) work out of the box.
Spot a broken layout in your CMS or a feature missing from the embeddable version? Open an issue at calcflux.com/contact. The embed shells are intentionally minimal — nav, footer, and ads are stripped to keep load fast and avoid visual conflicts with host pages.