A simple web application that allows users to upload images and remove their backgrounds using the Remove.bg API.

• Drag and drop image upload
• Preview of original and processed images
• Download processed images with transparent backgrounds
• Responsive design that works on mobile and desktop

This application requires a Remove.bg API key to function. You need to set up an environment variable in Val Town:

1. Sign up for a free account at Remove.bg
2. Get your API key from the Remove.bg dashboard
3. Add the API key as an environment variable in Val Town:
   • Variable name: REMOVE_BG_API_KEY
   • Value: Your Remove.bg API key

1. Upload an image by dragging and dropping it onto the designated area or by clicking to select a file
2. Click the "Remove Background" button to process the image
3. Once processing is complete, you can download the image with the background removed

• The free tier of Remove.bg API has a limited number of API calls (typically 50 images per month)
• Maximum file size is 10MB
• Supported file formats: PNG, JPG, JPEG

If you encounter issues with the application, here are some common problems and solutions:

• Make sure you've added the REMOVE_BG_API_KEY environment variable in Val Town
• Verify that the API key is correct and active in your Remove.bg dashboard

• The free tier of Remove.bg has a limited number of API calls
• If you see a 429 error, you've exceeded your monthly quota
• Consider upgrading your Remove.bg plan for more credits

• Make sure your image is in a supported format (PNG, JPG, JPEG)
• Check that the image size is under 10MB
• Some complex images might not process correctly

This application is built using:

• Frontend: HTML, CSS (with Tailwind via CDN), and vanilla JavaScript
• Backend: Hono framework running on Val Town's Deno runtime
• Image processing: Remove.bg API

• /index.ts - Main HTTP handler and API endpoint
• /frontend/index.html - Frontend UI for the application