FallbackJS

FallbackJS is a tiny, zero-configuration JavaScript library that provides clean, user-friendly fallback pages for common frontend failures.

It works automatically by adding a single script tag.

No setup. No backend. No tracking.

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What it does

FallbackJS handles common failure states gracefully:

• Offline / network unavailable
• Broken images
• Runtime JavaScript crashes

Each fallback is:

• Minimal
• Responsive
• Accessible
• Fully client-side

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What it does NOT do

FallbackJS does not:

• Verify truth, correctness, or security
• Prevent crashes from happening
• Replace proper error handling or monitoring
• Send analytics or logs anywhere

This library is about presentation, not prevention.

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Installation

Add one script tag to your main HTML file:

<script src="https://fallbackjs.netlify.app/fallback.min.js"></script>

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