How to Create a Shareable JavaScript Demo Link
Built something in JavaScript and want to share it as a live demo? Here's how to get from code to URL in seconds.
You wrote some JavaScript — maybe a small animation, a DOM manipulation demo, or a mini-game. You want to share it as a live link that runs in the browser. Here are your options.
Option 1: OneClickLive (fastest)
OneClickLive auto-detects JavaScript and wraps it in a minimal HTML page automatically. You don't need to write any HTML boilerplate.
Just paste your JS code and click Deploy. Your script gets wrapped like this behind the scenes:
<!DOCTYPE html>
<html>
<head><meta charset="utf-8"></head>
<body>
<script>
// your code here
</script>
</body>
</html>Live URL in about 3 seconds. Free for 1 project (7 days), Pro for permanent hosting.
Option 2: CodePen
CodePen is great for demos where you want others to see and fork your code. The URL is shareable and works on any device. However, the interface shows the code editor alongside the preview — it's not a clean standalone page.
Best for: Code sharing with other developers, open-source demos.
Option 3: JSFiddle
Similar to CodePen, but with separate HTML/CSS/JS panels. Good for tutorials and SO answers. Same limitation: visible code editor in the output.
Option 4: GitHub Pages
Create a repo, add your JS wrapped in an HTML file, enable GitHub Pages. Permanent, free, custom domains. But requires Git and a GitHub account.
Best for: Long-lived projects you want to maintain over time.
Which Should You Use?
- Sharing a quick demo right now: OneClickLive
- Sharing code for other devs to fork: CodePen or JSFiddle
- Building something permanent: GitHub Pages
For most "I just built this and want to share it" cases, OneClickLive is the fastest path to a live link.