Graceful fallbacks for the modern web

FallbackJS ensures your site stays usable when users go offline, images fail, or network conditions break expectations.

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

Why FallbackJS?

The web fails silently. Images don’t load. Networks drop. Users leave. FallbackJS detects failures early and replaces broken content with intentional, branded fallbacks.

Core principles

• Zero configuration
• Works offline by default
• Handles broken images and runtime crashes
• No backend, no tracking
• Progressive enhancement, not magic

Example pages

Offline fallback

Displays a clean, cached fallback UI when the network is unavailable.

Image fallback

Replaces broken images with graceful placeholders.

Crash handling

Demonstrates runtime error capture and safe fallback rendering.