Not Found Pages

Interactive particle-based 404 error page built with HTML Canvas and vanilla JavaScript. Instead of static text, the “404” breaks into particles that react to mouse/touch, disintegrate, and smoothly reassemble, creating a playful and polished experience for GitHub Pages or web projects.

Retro desktop-style 404 page inspired by classic window interfaces. Features a minimal monospace design, macOS-like title bar controls, interactive color switching, and a clean UI layout. Built with pure HTML, CSS, and JavaScript, making it lightweight, responsive, and easy to integrate into modern websites.

A premium, time-themed 404 error page featuring a live analog clock as the “0” in 404. Built with smooth animations, precise time synchronization, and elegant typography, it blends minimalist design with a temporal “lost in time” concept. Includes a real-time clock, clean UI, and a return-to-home action for seamless navigation.

A visually striking 404 error page featuring a Matrix-style digital rain effect built with HTML, CSS, and JavaScript. Instead of a plain 404 message, users see cascading green characters that mimic the iconic “Matrix” rain animation, perfect for interactive error screens and creative web projects.

A production-ready starter template for building premium 404 error pages in the @notfoundpages ecosystem. Includes clean structure, reusable sections, responsive layout patterns, contribution-ready conventions, and styling foundations for rapid customization.

A sleek retro 404 page inspired by classic macOS desktops. Features a minimal monospace design, macOS-style title bar controls, interactive color switching, and a clean UI. Built with pure HTML, CSS & JS, it’s lightweight, responsive, and perfect for modern websites seeking a polished retro touch.

A beautiful, responsive 404 error page with an animated silk-like background powered by Three.js and custom shaders. Built with modern HTML, CSS, and WebGL for smooth visuals and fluid performance.

A modern, immersive 404 error page built with a clean glassmorphism interface, dynamic background switching, and an interactive music player that supports track previews, navigation, and smooth UI transitions. Designed for developers who want a stylish, functional, and customizable not-found page for static websites and portfolios.

A simple, elegant BMI and health-score calculator with a glass morphism UI.

Community health files for the @notfoundpages ecosystem. This repository centralizes shared templates, contribution guidelines, issue and pull request workflows, codes of conduct, and other standards used across organization repositories to ensure consistent collaboration and a welcoming open-source environment.