OPFS Explorer — Hasan Bayat

OPFS Explorer - The Missing DevTools Panel for Origin Private File System

The Origin Private File System (OPFS) is a powerful browser API for high-performance file storage, but browsers don't provide any way to see what's inside. OPFS Explorer fills this gap by adding a dedicated panel to Chrome DevTools.

GitHub: https://github.com/hasanbayatme/opfs-explorer

SECURITY HIGHLIGHTS:
• NO host permissions - doesn't access any websites
• NO content scripts - no code injected into pages
• ONLY permission: clipboard for "Copy Path" feature
• Uses DevTools native inspectedWindow.eval() API

KEY FEATURES:
📂 Visual File Tree - Browse directories with file sizes and type icons
📝 Code Editor - Syntax highlighting for JSON, JS, TS, HTML, CSS
🖼️ Image Preview - Zoom, rotate, and inspect images up to 5MB
📑 Markdown Support - Preview or edit .md files
✅ Multi-Selection - Ctrl+Click, Shift+Click, Ctrl+A with bulk delete/download
🖱️ Drag & Drop - Upload files or reorganize your file structure (multi-drag)
⚡ Full CRUD - Create, rename, move, and delete files/folders
⬇️ Download Files - Export from OPFS to your local machine
📊 Storage Stats - Monitor your OPFS quota usage
⌨️ Keyboard Shortcuts - 20+ shortcuts with platform-aware hints in context menus
🌗 Theme Support - Adapts to DevTools light/dark themes
♿ Fully Accessible - WCAG 2.1 AA with screen reader, keyboard, and high contrast support

PERFECT FOR:
• SQLite Wasm applications (sql.js, wa-sqlite, sqlite-wasm)
• Progressive Web Apps (PWAs) with offline storage
• File System Access API projects
• Browser-based IDEs and editors
• Any app using navigator.storage.getDirectory()

PRIVACY:
• Runs entirely locally - no external connections
• No data collection or telemetry
• Minimal permission (clipboard only)
• No content scripts or host permissions
• Open source: github.com/hasanbayatme/opfs-explorer

HOW TO USE:
1. Open any website using OPFS (https or localhost)
2. Open DevTools (F12)
3. Click the "OPFS Explorer" tab
4. Browse, edit, and manage your files!