Boost: JavaScript & CSS Injector

Custom JavaScript & CSS Injector. Edit & inject custom JavaScript and CSS per domain - mobile friendly

A powerful, mobile-friendly browser extension that allows you to edit and inject custom JavaScript and CSS on any website per-domain. Core Features • Cross-Platform Compatibility: Works seamlessly on desktop browsers (Chrome, Firefox, Edge) and mobile browsers including Orion Browser on iOS • Per-Domain Customization: Apply different JavaScript and CSS scripts to different websites automatically • Real-time Injection: Scripts are injected immediately when enabled - no page reload required • Syntax Highlighting: Professional code editors with JavaScript and CSS syntax highlighting • Mobile-Optimized UI: Responsive interface that adapts to mobile screens with touch-friendly controls • Toggle Control: Easily enable/disable scripts for any domain with one tap • Persistent Storage: Your scripts are reliably saved across browser sessions • CSP Bypass: Works on sites with strict Content Security Policy • Large Script Support: Handles scripts larger than 100KB with chunked storage • Light mode and Dark mode support Perfect for: • Customizing website appearances with CSS • Adding functionality with JavaScript • Removing ads and unwanted elements • Creating custom themes • Automating repetitive tasks