diff --git a/package.json b/package.json
index 8b5231b..1cbdd53 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,8 @@
     "dotenv": "^16.3.1",
     "cors": "^2.8.5",
     "express-session": "^1.17.3",
-    "bcryptjs": "^2.4.3"
+    "bcryptjs": "^2.4.3",
+    "multer": "^1.4.5-lts.1"
   },
   "devDependencies": {
     "nodemon": "^3.0.1"
diff --git a/public/assets/app.js b/public/assets/app.js
index 9c66407..62a2b1c 100644
--- a/public/assets/app.js
+++ b/public/assets/app.js
@@ -1342,6 +1342,57 @@
                 }
             }
 
+            async uploadBackup() {
+                const fileInput = document.getElementById('backupFileInput');
+                const file = fileInput.files[0];
+
+                if (!file) {
+                    this.showToast('No file selected', 'error');
+                    return;
+                }
+
+                if (!file.name.endsWith('.tar.gz')) {
+                    this.showToast('Only .tar.gz files are supported', 'error');
+                    fileInput.value = '';
+                    return;
+                }
+
+                try {
+                    // Show loading state
+                    const uploadBtn = Array.from(document.querySelectorAll('button')).find(btn => btn.textContent.includes('Upload archive'));
+                    const originalText = uploadBtn.textContent;
+                    uploadBtn.disabled = true;
+                    uploadBtn.textContent = 'Uploading...';
+
+                    const formData = new FormData();
+                    formData.append('file', file);
+
+                    const response = await fetch('/api/backups/upload', {
+                        method: 'POST',
+                        body: formData,
+                    });
+
+                    const result = await response.json();
+                    
+                    if (!response.ok) {
+                        throw new Error(result.error || 'Failed to upload backup');
+                    }
+
+                    this.showToast('Backup uploaded successfully', 'success');
+                    fileInput.value = '';
+                    await this.loadBackups();
+                } catch (err) {
+                    this.showToast(err.message, 'error');
+                    fileInput.value = '';
+                } finally {
+                    const uploadBtn = Array.from(document.querySelectorAll('button')).find(btn => btn.textContent.includes('Upload') || btn.textContent.includes('Uploading'));
+                    if (uploadBtn) {
+                        uploadBtn.disabled = false;
+                        uploadBtn.textContent = 'Upload archive';
+                    }
+                }
+            }
+
             async loadSettings() {
                 try {
                     const response = await fetch('/api/settings');
diff --git a/public/index.html b/public/index.html
index e41e80e..abf922b 100644
--- a/public/index.html
+++ b/public/index.html
@@ -330,7 +330,11 @@ SELECT * FROM users LIMIT 10;"></textarea>
                                             <h3 class="text-2xl font-bold text-slate-800">Backups</h3>
                                             <p class="text-sm text-slate-500 mt-1">Archives contain the SQL dump and, if enabled, the application snapshot.</p>
                                         </div>
-                                        <button onclick="app.createBackup()" class="px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg">Create archive</button>
+                                        <div class="flex items-center gap-2">
+                                            <button onclick="app.createBackup()" class="px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg">Create archive</button>
+                                            <button onclick="document.getElementById('backupFileInput').click()" class="px-4 py-2 bg-amber-600 hover:bg-amber-700 text-white rounded-lg">Upload archive</button>
+                                            <input id="backupFileInput" type="file" accept=".tar.gz" style="display: none;" onchange="app.uploadBackup()">
+                                        </div>
                                     </div>
                                     <label class="flex items-center gap-2 text-sm text-slate-700">
                                         <input type="checkbox" id="managementRestoreAppSnapshot" class="w-4 h-4" checked>
diff --git a/server.js b/server.js
index 621d933..e4fe536 100644
--- a/server.js
+++ b/server.js
@@ -5,6 +5,9 @@ const session = require('express-session');
 const cors = require('cors');
 const crypto = require('crypto');
 const bcrypt = require('bcryptjs');
+const multer = require('multer');
+const fs = require('fs');
+const path = require('path');
 const {
     ALLOWED_SQL_TYPES,
     canAccessFolder,
@@ -37,6 +40,7 @@ const {
     listBackups,
     pruneBackups,
     restoreBackup,
+    uploadBackup,
 } = require('./src/services/backups');
 const {
     notifyError,
@@ -50,6 +54,20 @@ const {
 
 const app = express();
 
+// Multer configuration for file uploads
+const upload = multer({
+    storage: multer.memoryStorage(),
+    limits: { fileSize: 500 * 1024 * 1024 }, // 500MB limit for backups
+    fileFilter: (req, file, cb) => {
+        // Only accept tar.gz files
+        if (file.originalname.endsWith('.tar.gz') || file.mimetype === 'application/gzip' || file.mimetype === 'application/x-gzip') {
+            cb(null, true);
+        } else {
+            cb(new Error('Only .tar.gz files are supported'));
+        }
+    }
+});
+
 // Middleware
 app.use(cors());
 app.use(express.json({ limit: '1mb' }));
@@ -437,6 +455,45 @@ app.post('/api/backups/:filename/restore', requireAuth, requirePermission(
     }
 });
 
+app.post('/api/backups/upload', requireAuth, requirePermission(
+    (permissions) => permissions.canManageUsers,
+    'Backup access denied'
+), upload.single('file'), async (req, res) => {
+    try {
+        if (!req.file) {
+            return res.status(400).json({ success: false, error: 'No file provided' });
+        }
+
+        // Write the file to a temporary location first
+        const tempPath = path.join(require('os').tmpdir(), `backup-upload-${Date.now()}.tar.gz`);
+        await fs.promises.writeFile(tempPath, req.file.buffer);
+
+        try {
+            // Upload the backup
+            const settings = getSettings();
+            const backup = await uploadBackup(tempPath, {
+                keepLast: settings.backups.keepLast,
+            });
+            
+            appendAudit('backup.uploaded', req.currentUser.username, { 
+                filename: backup.filename, 
+                originalFilename: req.file.originalname,
+                source: getAuditSource(req) 
+            });
+            
+            res.json({ success: true, backup });
+        } finally {
+            // Clean up temp file
+            try {
+                await fs.promises.unlink(tempPath);
+            } catch {}
+        }
+    } catch (err) {
+        notifyError('Backup upload failed', err, { actor: req.currentUser.username }).catch(() => {});
+        res.status(500).json({ success: false, error: err.message });
+    }
+});
+
 app.get('/api/settings', requireAuth, requirePermission(
     (permissions) => permissions.canManageUsers,
     'Settings access denied'
diff --git a/src/services/backups.js b/src/services/backups.js
index 26ac18a..4f5c2fa 100644
--- a/src/services/backups.js
+++ b/src/services/backups.js
@@ -270,6 +270,46 @@ async function restoreBackup(filename, options = {}) {
     }
 }
 
+async function uploadBackup(sourceFilePath, options = {}) {
+    ensureBackupsDir();
+    
+    // Generate a unique backup filename
+    const stamp = makeBackupStamp();
+    const archiveFilename = `${BACKUP_PREFIX}${stamp}-uploaded${BACKUP_EXTENSION}`;
+    const archivePath = path.join(BACKUPS_DIR, archiveFilename);
+    
+    try {
+        // Copy the uploaded file to backups directory
+        fs.copyFileSync(sourceFilePath, archivePath);
+        
+        // Validate the archive by trying to extract it to a temp directory
+        const tempDir = makeTempDir();
+        try {
+            await extractArchive(archivePath, tempDir);
+            
+            // Check if it contains required files
+            const sqlPath = path.join(tempDir, 'database.sql');
+            if (!fs.existsSync(sqlPath)) {
+                throw new Error('Archive does not contain database.sql');
+            }
+        } finally {
+            cleanupDir(tempDir);
+        }
+        
+        if (options.keepLast) {
+            pruneBackups(options.keepLast);
+        }
+        
+        return formatBackupEntry(archivePath, archiveFilename);
+    } catch (err) {
+        // Clean up the file if validation failed
+        try {
+            fs.unlinkSync(archivePath);
+        } catch {}
+        throw err;
+    }
+}
+
 module.exports = {
     BACKUPS_DIR,
     createBackup,
@@ -277,4 +317,5 @@ module.exports = {
     listBackups,
     pruneBackups,
     restoreBackup,
+    uploadBackup,
 };