Custom Script Injector

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Inject custom CSS and JavaScript into websites. This document contains the text required for publishing to the Chrome Web Store. Inject custom CSS and JavaScript into any website. Features CSP bypass, CodeMirror editor, hot reload, and GitHub Gist sync. Want to customize the style or behavior of your favorite websites? **Custom Script Injector** is your best choice! This powerful developer tool allows you to write and inject custom CSS and JavaScript into any webpage. * **🛡️ Advanced CSP Bypass** Inject and execute JavaScript even on websites with strict Content Security Policy (via `declarativeNetRequest` and `executeScript` in MAIN world). * **🎨 Syntax Highlighting** Integrated **CodeMirror 5** editor with Monokai theme for a premium coding experience. * **⚡ Hot Reload** Scripts apply immediately upon saving. No manual page refresh needed. * **☁️ Cloud Sync** Backup and restore your scripts using **GitHub Gist**. Keep your snippets synchronized across devices. * **🌍 Internationalization** Supports English, Traditional Chinese (`zh_TW`), Simplified Chinese (`zh_CN`), and Japanese (`ja`). * **⌨️ Shortcuts** Support `Ctrl+S` / `Cmd+S` to save your code quickly. * **Local First**: All scripts and settings are stored locally in your browser. * **Your Data**: If sync is enabled, data is only transmitted to your personal GitHub Gist. * **No Tracking**: We do not collect any browsing history or usage data.

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