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--- a/README.md
+++ b/README.md
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+# Minimal Chunked File Storage (PHP)
+
+This is a minimalistic PHP-based file storage system with:
+
+* Password-protected admin panel
+* Chunked file upload for large files (GB+)
+* Upload progress display
+* File listing with download and delete options
+* Direct link copy button
+* No external libraries required
+
+## 🚀 Features
+
+* Chunked upload via JavaScript + `fetch`
+* Server-side chunk handling and merging
+* No CSS or frontend frameworks
+* Fully self-contained (no Composer needed)
+
+## 🛠 Requirements
+
+* PHP 7.4+
+* A web server (or use PHP's built-in server)
+
+## 📁 Folder Structure
+
+```
+/simple-file-share/
+├── index.php
+├── upload/             # Final uploaded files
+├── upload_chunks/      # Temporary chunk storage
+├── upload_chunk.php
+├── merge_chunks.php
+└── config.php          # Configuration (password and paths)
+```
+
+## 🔐 Configuration
+
+Create `config.php`:
+
+```php
+<?php
+define('PASSWORD', 'your_password_here');
+define('UPLOAD_DIR', __DIR__ . '/upload/');
+define('CHUNK_DIR', __DIR__ . '/upload_chunks/');
+```
+
+## ▶️ Run the Server
+
+Use PHP's built-in server:
+
+```bash
+php -S localhost:8000
+```
+
+Then open:
+
+```
+http://localhost:8000
+```
+
+## 📤 Uploading Files
+
+* Select a file in the UI.
+* It is split into 1MB chunks (adjustable in JS).
+* Upload progress is shown.
+* File is merged server-side and available for download.
+
+## 🧹 Cleanup
+
+* Temporary chunk files are automatically deleted after merging.
+* Files can be deleted via the admin interface.
+
+## 📝 License
+
+This project is public domain / MIT – use freely.
--- a/config.php
+++ b/config.php
@@ -0,0 +1,4 @@
+<?php
+define('PASSWORD', 'your_password_here');
+define('UPLOAD_DIR', __DIR__ . '/upload/');
+define('CHUNK_DIR', __DIR__ . '/upload_chunks/');
--- a/index.php
+++ b/index.php
@@ -0,0 +1,87 @@
+<?php
+
+session_start();
+require_once __DIR__ . '/config.php';
+
+if (!file_exists(UPLOAD_DIR)) mkdir(UPLOAD_DIR);
+if (!file_exists(CHUNK_DIR)) mkdir(CHUNK_DIR);
+
+if (!isset($_SESSION['logged_in']) || ($_GET['action'] ?? '') === 'logout') {
+    if ($_SERVER['REQUEST_METHOD'] === 'POST' && ($_POST['password'] ?? '') === PASSWORD) {
+        $_SESSION['logged_in'] = true;
+        header("Location: index.php");
+        exit;
+    }
+
+    echo '<form method="post">
+        <h3>Login</h3>
+        <input type="password" name="password" placeholder="Password">
+        <button type="submit">Login</button>
+    </form>';
+    exit;
+}
+
+// Удаление
+if (isset($_GET['delete'])) {
+    $f = basename($_GET['delete']);
+    @unlink(UPLOAD_DIR . $f);
+    header("Location: index.php");
+    exit;
+}
+
+$files = array_diff(scandir(UPLOAD_DIR), ['.', '..']);
+?><!DOCTYPE html>
+<html>
+<head><meta charset="utf-8"><title>Файловое хранилище</title></head>
+<body>
+<h3>Файловое хранилище</h3>
+<p><a href="?action=logout">Выйти</a></p>
+<input type="file" id="fileInput">
+<div id="progress"></div>
+<ul>
+<?php foreach ($files as $file): $url = 'upload/' . rawurlencode($file); ?>
+    <li>
+        <?= htmlspecialchars($file) ?>
+        [<a href="<?= $url ?>" target="_blank">Скачать</a>]
+        [<a href="?delete=<?= urlencode($file) ?>" onclick="return confirm('Удалить?')">Удалить</a>]
+        <button onclick="copyLink('<?= $url ?>')">Копировать ссылку</button>
+    </li>
+<?php endforeach; ?>
+</ul>
+
+<script>
+function copyLink(link) {
+    navigator.clipboard.writeText(location.origin + '/' + link).then(() => alert("Скопировано"));
+}
+
+const input = document.getElementById('fileInput');
+input.addEventListener('change', async () => {
+    const file = input.files[0];
+    if (!file) return;
+    const chunkSize = 1024 * 1024; // 1MB
+    const totalChunks = Math.ceil(file.size / chunkSize);
+
+    for (let i = 0; i < totalChunks; i++) {
+        const chunk = file.slice(i * chunkSize, (i + 1) * chunkSize);
+        const formData = new FormData();
+        formData.append('chunk', chunk);
+        formData.append('filename', file.name);
+        formData.append('index', i);
+        formData.append('total', totalChunks);
+
+        await fetch('upload_chunk.php', { method: 'POST', body: formData });
+        document.getElementById('progress').innerText = `Загружено: ${i+1}/${totalChunks}`;
+    }
+
+    await fetch('merge_chunks.php', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ filename: file.name, total: totalChunks })
+    });
+
+    alert('Готово!');
+    location.reload();
+});
+</script>
+</body>
+</html>
--- a/merge_chunks.php
+++ b/merge_chunks.php
@@ -0,0 +1,21 @@
+<?php
+
+require_once __DIR__ . '/config.php';
+
+$data = json_decode(file_get_contents('php://input'), true);
+$filename = basename($data['filename']);
+$total = intval($data['total']);
+$tmpDir = __DIR__ . '/upload_chunks/' . $filename;
+$finalPath = __DIR__ . '/upload/' . $filename;
+
+$out = fopen($finalPath, 'w');
+for ($i = 0; $i < $total; $i++) {
+    $partPath = "$tmpDir/$i.part";
+    $in = fopen($partPath, 'r');
+    stream_copy_to_stream($in, $out);
+    fclose($in);
+    unlink($partPath);
+}
+fclose($out);
+rmdir($tmpDir);
+http_response_code(200);
--- a/upload_chunk.php
+++ b/upload_chunk.php
@@ -0,0 +1,8 @@
+<?php
+
+$filename = basename($_POST['filename']);
+$index = intval($_POST['index']);
+$tmpDir = __DIR__ . '/upload_chunks/' . $filename;
+if (!file_exists($tmpDir)) mkdir($tmpDir, 0777, true);
+
+move_uploaded_file($_FILES['chunk']['tmp_name'], "$tmpDir/$index.part");