diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,2 +1,16 @@
 # base44-zip
 base 44 app
+
+## File Upload Feature
+
+This application provides a simple file upload interface with the following features:
+
+- **Drag and Drop**: Drag files directly onto the upload area
+- **Click to Browse**: Click the upload area to open a file browser
+- **Multiple Files**: Upload multiple files at once
+- **File Preview**: See file names and sizes before uploading
+- **Remove Files**: Remove files from the queue before uploading
+
+### Usage
+
+Open `index.html` in a web browser to use the file upload interface.
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..c82446e
--- /dev/null
+++ b/index.html
@@ -0,0 +1,313 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Base44 - File Upload</title>
+    <style>
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+        }
+        
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            min-height: 100vh;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            padding: 20px;
+        }
+        
+        .container {
+            background: white;
+            border-radius: 16px;
+            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
+            padding: 40px;
+            max-width: 500px;
+            width: 100%;
+        }
+        
+        h1 {
+            color: #333;
+            margin-bottom: 8px;
+            font-size: 28px;
+        }
+        
+        .subtitle {
+            color: #666;
+            margin-bottom: 30px;
+        }
+        
+        .upload-area {
+            border: 2px dashed #ccc;
+            border-radius: 12px;
+            padding: 40px 20px;
+            text-align: center;
+            cursor: pointer;
+            transition: all 0.3s ease;
+            margin-bottom: 20px;
+        }
+        
+        .upload-area:hover {
+            border-color: #667eea;
+            background: #f8f9ff;
+        }
+        
+        .upload-area.dragover {
+            border-color: #667eea;
+            background: #f0f2ff;
+        }
+        
+        .upload-icon {
+            font-size: 48px;
+            margin-bottom: 16px;
+        }
+        
+        .upload-text {
+            color: #666;
+            margin-bottom: 8px;
+        }
+        
+        .upload-hint {
+            color: #999;
+            font-size: 14px;
+        }
+        
+        #fileInput {
+            display: none;
+        }
+        
+        .file-list {
+            margin-top: 20px;
+        }
+        
+        .file-item {
+            display: flex;
+            align-items: center;
+            padding: 12px;
+            background: #f8f9fa;
+            border-radius: 8px;
+            margin-bottom: 10px;
+        }
+        
+        .file-icon {
+            font-size: 24px;
+            margin-right: 12px;
+        }
+        
+        .file-info {
+            flex: 1;
+        }
+        
+        .file-name {
+            color: #333;
+            font-weight: 500;
+        }
+        
+        .file-size {
+            color: #999;
+            font-size: 13px;
+        }
+        
+        .file-remove {
+            background: #ff4757;
+            color: white;
+            border: none;
+            border-radius: 6px;
+            padding: 6px 12px;
+            cursor: pointer;
+            font-size: 13px;
+        }
+        
+        .file-remove:hover {
+            background: #ff3344;
+        }
+        
+        .upload-btn {
+            width: 100%;
+            padding: 14px;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            color: white;
+            border: none;
+            border-radius: 8px;
+            font-size: 16px;
+            font-weight: 600;
+            cursor: pointer;
+            margin-top: 20px;
+            transition: transform 0.2s ease;
+        }
+        
+        .upload-btn:hover {
+            transform: translateY(-2px);
+        }
+        
+        .upload-btn:disabled {
+            opacity: 0.6;
+            cursor: not-allowed;
+            transform: none;
+        }
+
+        .message {
+            margin-top: 15px;
+            padding: 12px;
+            border-radius: 8px;
+            text-align: center;
+            display: none;
+        }
+
+        .message.success {
+            display: block;
+            background: #d4edda;
+            color: #155724;
+        }
+
+        .message.error {
+            display: block;
+            background: #f8d7da;
+            color: #721c24;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1><span aria-hidden="true">📁</span> File Upload</h1>
+        <p class="subtitle">Upload your files easily</p>
+        
+        <div class="upload-area" id="uploadArea">
+            <div class="upload-icon" aria-hidden="true">☁️</div>
+            <p class="upload-text">Drag and drop files here</p>
+            <p class="upload-hint">or click to browse</p>
+        </div>
+        
+        <input type="file" id="fileInput" multiple>
+        
+        <div class="file-list" id="fileList"></div>
+        
+        <button class="upload-btn" id="uploadBtn" disabled>Upload Files</button>
+        
+        <div class="message" id="message"></div>
+    </div>
+
+    <script>
+        const uploadArea = document.getElementById('uploadArea');
+        const fileInput = document.getElementById('fileInput');
+        const fileList = document.getElementById('fileList');
+        const uploadBtn = document.getElementById('uploadBtn');
+        const message = document.getElementById('message');
+        
+        let selectedFiles = [];
+        let dragCounter = 0;
+        
+        // Click to open file dialog
+        uploadArea.addEventListener('click', () => {
+            fileInput.click();
+        });
+        
+        // Handle file selection
+        fileInput.addEventListener('change', (e) => {
+            handleFiles(e.target.files);
+        });
+        
+        // Drag and drop handlers
+        uploadArea.addEventListener('dragenter', (e) => {
+            e.preventDefault();
+            dragCounter++;
+            uploadArea.classList.add('dragover');
+        });
+        
+        uploadArea.addEventListener('dragover', (e) => {
+            e.preventDefault();
+        });
+        
+        uploadArea.addEventListener('dragleave', (e) => {
+            e.preventDefault();
+            dragCounter--;
+            if (dragCounter === 0) {
+                uploadArea.classList.remove('dragover');
+            }
+        });
+        
+        uploadArea.addEventListener('drop', (e) => {
+            e.preventDefault();
+            dragCounter = 0;
+            uploadArea.classList.remove('dragover');
+            handleFiles(e.dataTransfer.files);
+        });
+        
+        function handleFiles(files) {
+            for (let file of files) {
+                if (!selectedFiles.some(f => f.name === file.name && f.size === file.size && f.lastModified === file.lastModified)) {
+                    selectedFiles.push(file);
+                }
+            }
+            renderFileList();
+            updateUploadButton();
+        }
+        
+        function renderFileList() {
+            fileList.innerHTML = '';
+            selectedFiles.forEach((file, index) => {
+                const fileItem = document.createElement('div');
+                fileItem.className = 'file-item';
+                fileItem.innerHTML = `
+                    <span class="file-icon" aria-hidden="true">📄</span>
+                    <div class="file-info">
+                        <div class="file-name">${escapeHtml(file.name)}</div>
+                        <div class="file-size">${formatFileSize(file.size)}</div>
+                    </div>
+                    <button class="file-remove" data-index="${index}">Remove</button>
+                `;
+                fileList.appendChild(fileItem);
+            });
+            
+            // Add remove handlers
+            document.querySelectorAll('.file-remove').forEach(btn => {
+                btn.addEventListener('click', (e) => {
+                    const index = parseInt(e.target.getAttribute('data-index'));
+                    selectedFiles.splice(index, 1);
+                    renderFileList();
+                    updateUploadButton();
+                });
+            });
+        }
+        
+        function updateUploadButton() {
+            uploadBtn.disabled = selectedFiles.length === 0;
+        }
+        
+        function formatFileSize(bytes) {
+            if (bytes === 0) return '0 Bytes';
+            const k = 1024;
+            const sizes = ['Bytes', 'KB', 'MB', 'GB'];
+            const i = Math.floor(Math.log(bytes) / Math.log(k));
+            return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+        }
+        
+        function escapeHtml(text) {
+            const div = document.createElement('div');
+            div.textContent = text;
+            return div.innerHTML;
+        }
+        
+        // Handle upload button click
+        uploadBtn.addEventListener('click', () => {
+            if (selectedFiles.length === 0) return;
+            
+            // Show success message (in a real app, this would upload to a server)
+            showMessage('success', `${selectedFiles.length} file(s) ready for upload!`);
+            
+            // In a real implementation, you would send files to a server here
+            // For now, we just show a success message
+            console.log('Files to upload:', selectedFiles);
+        });
+        
+        function showMessage(type, text) {
+            message.className = `message ${type}`;
+            message.textContent = text;
+        }
+    </script>
+</body>
+</html>
