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Embed Runnable Python Code in Any Website

You know the drill: a reader copies your snippet, opens some other tool, pastes it, fights the indentation, and half of them never come back. Skip all of that. One iframe tag turns your code sample into a live editor that runs right on your page. Free, no account, no API key.

Create Your Embed

Try:
Loading editor…
Theme
px(sized to your code automatically)
Copy this into your page
Using Notion or another embed-by-URL block? Copy the link instead:
Live preview (press Run in it, it works)
Put It Where You Publish
  • WordPressAdd a Custom HTML block to your post and paste the iframe tag into it.
  • GhostAdd an HTML card and paste the iframe tag.
  • NotionPaste the widget link (use "Copy link" in the generator, not the tag) and choose Create embed.
  • Moodle, Canvas & other LMSOpen the HTML source view of the content editor and paste the tag. If it does not render, your school admin may have iframes restricted.
  • Hugo, Jekyll, Astro, plain HTMLPaste the tag straight into your content. It is just an iframe, nothing to configure.
  • Medium & SubstackThese two do not accept custom iframes at all. Share a link to the full editor with your code preloaded instead: the Share button in the editor copies one.
How It Works
  1. Paste your code into the generator above. Working on something in the editor? Click Embed there and the tag is already on your clipboard.
  2. Add the tag to your page using whichever method your platform needs. The section above covers the common ones.
  3. Your readers press Run. Python 3.13 executes in their browser and the output appears under the code, plots included. They can edit your example and run it again as many times as they like.
One honest limitation: input() is not available inside embeds, because browsers restrict it in iframes. Assign values to variables instead, or let readers jump to the full editor with the built-in “Open in full editor” link.
Why Embed With pythoncompiler.io
Readers learn by touching
No install, no setup, no "clone this repo first." A reader changes your example, runs it again, and sees what happens. That moment of tinkering is the thing a static snippet can never give them.
No server, no strings
Execution happens on each reader's own machine. There is no backend to rate-limit you, no queue at peak times, and no question about where your readers' experiments end up.
Invisible until used
Dark or light theme, any height, responsive width. The Python runtime loads only when someone actually clicks Run, so a dozen embeds in one article cost your page speed nothing.
Made for teaching
Course pages, homework instructions, documentation. NumPy, Pandas, and Matplotlib work out of the box, and plots render right inside the widget.
Frequently Asked Questions
How do I embed runnable Python code in my website?
Paste your code into the generator on this page and copy the iframe tag it produces. Add that tag to your HTML, a WordPress Custom HTML block, a Ghost HTML card, or your LMS editor. For Notion, paste the widget link into an Embed block instead. No plugin, no API key.
Is the embed widget free?
Yes. No usage limits, no account, no paid tier. The widget carries a small "Powered by pythoncompiler.io" link, and that is the whole arrangement.
Does embedded code run on a server?
No. The code runs in each reader's browser. Nothing is uploaded, there are no execution queues, and a traffic spike on your post costs you nothing.
Which Python features are supported inside embeds?
Python 3.13 with the full standard library, plus NumPy, Pandas, and Matplotlib. Plots render inline below the code. The one thing that does not work inside embeds is input(), which browsers restrict in iframes. Assign values to variables instead, or let readers click "Open in full editor".
Does the embed slow down my page?
No. The iframe loads lazily and only a small editor loads at first. The Python runtime starts downloading when a reader clicks Run, not before, so your page speed and Core Web Vitals stay untouched.
Built something with it? We would genuinely like to see: tell us where you embedded it. Or keep exploring: the free online Python compiler, 116 interactive Python tutorials, and 50 practice problems with runnable solutions.