The Technical Side of Paste to Download

Paste to Download is built with modern web technologies that enable complete client-side processing.

How It Works

Paste to Download's core functionality executes entirely in your browser, following this workflow:

1. User copies an image to clipboard (via screenshot, copying an image, etc.)
2. User visits our website and pastes (Ctrl+V/Command+V)
3. Browser acquires image data through the Clipboard API
4. Frontend code processes the image data, extracting metadata (size, type, etc.)
5. Based on user selection, generates download links or packages into a ZIP file
6. User clicks download and saves the file using the browser's download functionality

Throughout this process, image data remains entirely within the user's browser and is never uploaded to any server.

Our tech stack includes:

• Vanilla JavaScript for core functionality
• HTML5 Canvas API for image processing
• JSZip for creating download packages
• Alpine.js for reactive UI components
• Tailwind CSS for responsive styling

Security & Privacy

We highly value user security and privacy. The project design follows these principles:

• Local Processing - All image processing happens in the user's browser, no data is uploaded
• Stateless Design - No cookies or local storage used to save user information
• Minimal Dependencies - Third-party libraries are carefully selected to reduce potential risks

Technical Limitations

Since we use pure frontend technology, the project has some technical limitations:

• Only supports modern browsers (latest versions of Chrome, Firefox, Safari, Edge)
• Processing large or multiple images may be limited by browser memory
• Some special image formats may not be processed correctly
• Clipboard functionality may be limited in certain restricted environments (e.g., corporate networks)

Future Plans

We plan to continuously improve and expand the project's functionality while maintaining simplicity:

• Support for more image formats and conversion options
• Add basic image editing features (crop, resize, etc.)
• Optimize mobile device experience
• Provide PWA version for offline use