NuModeX Ext Maker

NuModeX Ext Maker is a browser-based AI tool that generates complete browser extensions and static websites from plain-language descriptions. Just describe what you want to build, and it produces all necessary files, including HTML, CSS, JavaScript, and manifest.json, ready to download as a ZIP.

How It Works

Bring your own API key from any cloud AI provider, pick a model, describe your project, and click Build. Prefer on-device AI? Use browser-provided AI with no API key at all. Custom and local model servers are supported too.

Key Features

• Generates Manifest V3 browser extensions and static HTML/CSS/JS websites
• Conversational chat interface with full history and image prompt support
• Edit individual files or improve the full project with AI
• Manual inline code editing for fine-grained control
• Unified and side-by-side diff view to review AI changes
• Undo support for AI edits
• Live sandboxed preview, one-click ZIP download, and multi-project support
• Import/export projects via JSON, auto-naming, and auto-persistence
• Keyboard shortcuts, dark mode, and 9 language options
• Built-in help guide, no account needed

Privacy First

Your API key is stored only in your browser and never shared. There is no backend server, no analytics, no telemetry, and no tracking. Everything stays on your device.

Tips

Start with a simple prompt and build incrementally. Use Edit and Improve to layer on features after the initial build. For complex projects, choose a model with a larger context window. If generation fails, simplify the prompt or switch models.