diff --git a/lib/backend/modules/messages.dart b/lib/backend/modules/messages.dart
index 150e5ca..51af04e 100644
--- a/lib/backend/modules/messages.dart
+++ b/lib/backend/modules/messages.dart
@@ -51,6 +51,45 @@ class TranscriptionCache {
   static bool has(String messageId) => _cache.containsKey(messageId);
 }
 
+class FileHistoryEntry {
+  final int fileId;
+  final String? url;
+  final String? token;
+  final DateTime sentAt;
+
+  FileHistoryEntry({
+    required this.fileId,
+    this.url,
+    this.token,
+    required this.sentAt,
+  });
+}
+
+class FileHistoryCache {
+  static final List<FileHistoryEntry> _history = [];
+
+  static List<FileHistoryEntry> get history => List.unmodifiable(_history);
+
+  static void add(FileHistoryEntry entry) {
+    _history.insert(0, entry);
+    if (_history.length > 50) _history.removeLast();
+  }
+
+  static bool get isEmpty => _history.isEmpty;
+}
+
+class FileUploadInfo {
+  final String url;
+  final int fileId;
+  final String token;
+
+  FileUploadInfo({
+    required this.url,
+    required this.fileId,
+    required this.token,
+  });
+}
+
 class CachedMessage {
   final String id;
   final int accountId;
@@ -304,6 +343,47 @@ class MessagesModule {
     return TranscriptionResult(status: transcriptionStatus);
   }
 
+  Future<FileUploadInfo?> requestUploadUrl({int count = 1}) async {
+    final payload = {'count': count};
+    final response = await _api.sendRequest(Opcode.fileUpload, payload);
+    if (!response.isOk) return null;
+
+    final data = response.payload;
+    if (data is! Map) return null;
+
+    final infoList = data['info'] as List?;
+    if (infoList == null || infoList.isEmpty) return null;
+
+    final info = infoList.first;
+    if (info is! Map) return null;
+
+    return FileUploadInfo(
+      url: info['url'] as String? ?? '',
+      fileId: info['fileId'] as int? ?? 0,
+      token: info['token'] as String? ?? '',
+    );
+  }
+
+  Future<bool> sendFileMessage(
+    int chatId,
+    int fileId, {
+    bool notify = true,
+  }) async {
+    final payload = {
+      'chatId': chatId,
+      'message': {
+        'cid': DateTime.now().millisecondsSinceEpoch * -1,
+        'attaches': [
+          {'_type': 'FILE', 'fileId': fileId}
+        ],
+      },
+      'notify': notify,
+    };
+
+    final response = await _api.sendRequest(Opcode.msgSend, payload);
+    return response.isOk;
+  }
+
   Future<Uint8List?> downloadPhoto(String baseUrl, String photoToken) async {
     try {
       final response = await _api.sendRequest(Opcode.fileDownload, {
diff --git a/lib/frontend/screens/chats/chat_screen.dart b/lib/frontend/screens/chats/chat_screen.dart
index 13d8b3d..9d50c57 100644
--- a/lib/frontend/screens/chats/chat_screen.dart
+++ b/lib/frontend/screens/chats/chat_screen.dart
@@ -11,6 +11,7 @@ import '../../../core/storage/app_database.dart';
 import '../../../models/attachment.dart';
 import '../../../backend/modules/messages.dart' show ContactCache;
 import '../../widgets/message_bubble.dart';
+import '../../widgets/attachment_panel.dart';
 
 class ChatScreen extends StatefulWidget {
   final int chatId;
@@ -37,6 +38,7 @@ class _ChatScreenState extends State<ChatScreen>
   bool _hasText = false;
   bool _isLoading = true;
   bool _isSending = false;
+  bool _showAttachmentPanel = false;
   late AnimationController _shimmerController;
   List<CachedMessage> _messages = [];
   int _myId = 0;
@@ -336,14 +338,28 @@ class _ChatScreenState extends State<ChatScreen>
             ],
           ),
         )),
-      body: Column(
+      body: Stack(
         children: [
-          Expanded(
-            child: _isLoading && _messages.isEmpty
-                ? _buildShimmerLoading()
-                : _buildMessagesList(),
+          Column(
+            children: [
+              Expanded(
+                child: _isLoading && _messages.isEmpty
+                    ? _buildShimmerLoading()
+                    : _buildMessagesList(),
+              ),
+              _buildInputArea(context),
+            ],
           ),
-          _buildInputArea(context),
+          if (_showAttachmentPanel)
+            Positioned(
+              left: 0,
+              right: 0,
+              bottom: 0,
+              child: AttachmentPanel(
+                chatId: widget.chatId,
+                onClose: () => setState(() => _showAttachmentPanel = false),
+              ),
+            ),
         ],
       ),
     );
@@ -582,13 +598,32 @@ class _ChatScreenState extends State<ChatScreen>
                         opacity: _hasText ? 0 : 1,
                         child: _hasText
                             ? const SizedBox.shrink()
-                            : Padding(
-                                padding: const EdgeInsets.only(left: 12),
-                                child: Icon(
-                                  Symbols.attachment,
-                                  color: mutedIcon,
-                                  size: 24,
-                                  weight: 400,
+                            : GestureDetector(
+                                onTap: _showAttachmentPanel ? null : () => setState(() => _showAttachmentPanel = true),
+                                child: Padding(
+                                  padding: const EdgeInsets.only(left: 12),
+                                  child: Stack(
+                                    alignment: Alignment.center,
+                                    children: [
+                                      if (_showAttachmentPanel)
+                                        SizedBox(
+                                          width: 24,
+                                          height: 24,
+                                          child: CircularProgressIndicator(
+                                            strokeWidth: 2,
+                                            color: cs.primary,
+                                          ),
+                                        ),
+                                      Icon(
+                                        Symbols.attachment,
+                                        color: _showAttachmentPanel
+                                            ? cs.onSurfaceVariant.withValues(alpha: 0.3)
+                                            : mutedIcon,
+                                        size: 24,
+                                        weight: 400,
+                                      ),
+                                    ],
+                                  ),
                                 ),
                               ),
                       ),
diff --git a/lib/frontend/widgets/attachment_panel.dart b/lib/frontend/widgets/attachment_panel.dart
new file mode 100644
index 0000000..d749691
--- /dev/null
+++ b/lib/frontend/widgets/attachment_panel.dart
@@ -0,0 +1,390 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:file_picker/file_picker.dart';
+import 'package:komet/backend/modules/messages.dart' show FileHistoryCache, FileHistoryEntry;
+import 'package:komet/core/config/proxy_config.dart';
+import 'package:komet/core/protocol/opcode_map.dart';
+import 'package:komet/core/protocol/packet.dart';
+import 'package:komet/core/transport/proxy_connector.dart';
+import 'package:komet/frontend/widgets/custom_notification.dart';
+import 'package:komet/main.dart' show api, messagesModule;
+import 'package:material_symbols_icons/symbols.dart';
+
+class AttachmentPanel extends StatefulWidget {
+  final int chatId;
+  final VoidCallback onClose;
+
+  const AttachmentPanel({
+    super.key,
+    required this.chatId,
+    required this.onClose,
+  });
+
+  @override
+  State<AttachmentPanel> createState() => _AttachmentPanelState();
+}
+
+class _AttachmentPanelState extends State<AttachmentPanel> {
+  final TextEditingController _fileIdController = TextEditingController();
+  bool _isUploading = false;
+
+  Future<void> _pickAndUploadFile() async {
+    final result = await FilePicker.platform.pickFiles();
+    if (result == null || result.files.isEmpty) return;
+    final file = result.files.first;
+    if (file.path == null) return;
+
+    setState(() => _isUploading = true);
+
+    try {
+      final uploadInfo = await messagesModule.requestUploadUrl();
+      if (uploadInfo == null) {
+        if (mounted) showCustomNotification(context, 'Не удалось получить ссылку');
+        return;
+      }
+
+      final completer = Completer<void>();
+      void Function(Packet)? handler;
+      handler = (Packet packet) {
+        final payload = packet.payload;
+        if (payload is Map && payload['fileId'] == uploadInfo.fileId) {
+          api.unregisterPushHandler(Opcode.notifAttach);
+          completer.complete();
+        }
+      };
+      api.registerPushHandler(Opcode.notifAttach, (Packet p) => handler!(p));
+
+      await api.sendRequest(Opcode.msgTyping, {
+        'chatId': widget.chatId,
+        'type': 'FILE',
+      });
+
+      final uri = Uri.parse(uploadInfo.url);
+      final fileBytes = await File(file.path!).readAsBytes();
+      final proxySettings = await ProxyConfig.load();
+
+      int statusCode;
+      if (proxySettings.isEnabled) {
+        final connector = ProxyConnector(proxySettings);
+        final proxySocket = await connector.connect(uri.host, uri.port);
+        final socket = uri.scheme == 'https'
+            ? await RawSecureSocket.secure(
+                proxySocket,
+                host: uri.host,
+                onBadCertificate: (_) => true,
+              )
+            : proxySocket;
+        statusCode = await _rawPut(socket, uri, fileBytes);
+      } else {
+        final socket = await RawSocket.connect(uri.host, uri.port);
+        final secureSocket = uri.scheme == 'https'
+            ? await RawSecureSocket.secure(
+                socket,
+                host: uri.host,
+                onBadCertificate: (_) => true,
+              )
+            : socket;
+        statusCode = await _rawPut(secureSocket, uri, fileBytes);
+      }
+
+      if (statusCode == 200 || statusCode == 204) {
+        await completer.future.timeout(
+          const Duration(seconds: 30),
+          onTimeout: () {
+            api.unregisterPushHandler(Opcode.notifAttach);
+            throw TimeoutException('Тайм-аут подтверждения загрузки');
+          },
+        );
+
+        final sent = await messagesModule.sendFileMessage(widget.chatId, uploadInfo.fileId);
+        if (sent) {
+          FileHistoryCache.add(FileHistoryEntry(
+            fileId: uploadInfo.fileId,
+            url: uploadInfo.url,
+            token: uploadInfo.token,
+            sentAt: DateTime.now(),
+          ));
+          if (mounted) {
+            showCustomNotification(context, 'Файл отправлен');
+            widget.onClose();
+          }
+        } else {
+          if (mounted) showCustomNotification(context, 'Ошибка отправки сообщения');
+        }
+      } else {
+        api.unregisterPushHandler(Opcode.notifAttach);
+        if (mounted) showCustomNotification(context, 'Ошибка загрузки: $statusCode');
+      }
+    } catch (e) {
+      if (mounted) showCustomNotification(context, 'Ошибка: $e');
+    } finally {
+      if (mounted) setState(() => _isUploading = false);
+    }
+  }
+
+  Future<int> _rawPut(RawSocket socket, Uri uri, List<int> body) async {
+    final path = '${uri.path}${uri.hasQuery ? "?${uri.query}" : ""}';
+    final host = uri.host;
+
+    // Try HttpClient-based approach first, fall back to raw socket
+    final httpClient = HttpClient();
+    httpClient.badCertificateCallback = (cert, host, port) => true;
+
+    try {
+      final request = await httpClient.putUrl(uri);
+      request.headers.contentType = ContentType('application', 'octet-stream');
+      request.add(body is Uint8List ? body : Uint8List.fromList(body));
+      final response = await request.close().timeout(const Duration(minutes: 5));
+      final statusCode = response.statusCode;
+      await response.drain<void>();
+      debugPrint('HTTP Response via HttpClient: $statusCode');
+      socket.close();
+      return statusCode;
+    } catch (e) {
+      debugPrint('HttpClient failed, falling back to raw socket: $e');
+      // Fallback to raw HTTP
+      final rawRequest = StringBuffer()
+        ..write('PUT $path HTTP/1.1\r\n')
+        ..write('Host: $host\r\n')
+        ..write('Content-Type: application/octet-stream\r\n')
+        ..write('Content-Length: ${body.length}\r\n')
+        ..write('Connection: close\r\n')
+        ..write('\r\n');
+
+      final requestBytes = utf8.encode(rawRequest.toString());
+      final allBytes = <int>[...requestBytes, ...(body is Uint8List ? body : Uint8List.fromList(body))];
+      socket.write(Uint8List.fromList(allBytes));
+
+      final responseBytes = <int>[];
+      final completer = Completer<int>();
+      Timer? timer;
+
+      socket.listen((event) {
+        if (event == RawSocketEvent.read) {
+          final data = socket.read();
+          if (data != null) responseBytes.addAll(data);
+        } else if (event == RawSocketEvent.readClosed || event == RawSocketEvent.closed) {
+          timer?.cancel();
+          if (responseBytes.isEmpty) {
+            completer.completeError(const SocketException('Пустой ответ сервера'));
+            return;
+          }
+          final headerEnd = _findHeaderEnd(responseBytes);
+          if (headerEnd == -1) {
+            completer.completeError(const SocketException('Не удалось прочитать заголовок ответа'));
+            return;
+          }
+          final headerStr = utf8.decode(responseBytes.sublist(0, headerEnd), allowMalformed: true);
+          final statusLine = headerStr.split('\r\n').first;
+          debugPrint('HTTP Response (raw): $statusLine');
+          final parts = statusLine.split(' ');
+          completer.complete(parts.length >= 2 ? int.tryParse(parts[1]) ?? 0 : 0);
+        }
+      }, onError: (e) {
+        timer?.cancel();
+        completer.completeError(e);
+      });
+
+      timer = Timer(const Duration(minutes: 5), () {
+        socket.close();
+        completer.completeError(TimeoutException('Тайм-аут загрузки'));
+      });
+
+      return completer.future;
+    }
+  }
+
+  int _findHeaderEnd(List<int> bytes) {
+    for (var i = 0; i < bytes.length - 3; i++) {
+      if (bytes[i] == 0x0D && bytes[i + 1] == 0x0A &&
+          bytes[i + 2] == 0x0D && bytes[i + 3] == 0x0A) {
+        return i + 4;
+      }
+    }
+    return -1;
+  }
+
+  Future<void> _uploadByFileId() async {
+    final fileIdStr = _fileIdController.text.trim();
+    if (fileIdStr.isEmpty) return;
+    final fileId = int.tryParse(fileIdStr);
+    if (fileId == null) {
+      if (mounted) showCustomNotification(context, 'Неверный fileId');
+      return;
+    }
+    setState(() => _isUploading = true);
+    try {
+      final sent = await messagesModule.sendFileMessage(widget.chatId, fileId);
+      if (sent) {
+        if (mounted) {
+          showCustomNotification(context, 'Файл отправлен');
+          widget.onClose();
+        }
+      } else {
+        if (mounted) showCustomNotification(context, 'Ошибка отправки');
+      }
+    } catch (e) {
+      if (mounted) showCustomNotification(context, 'Ошибка: $e');
+    } finally {
+      if (mounted) setState(() => _isUploading = false);
+    }
+  }
+
+  @override
+  void dispose() {
+    _fileIdController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final cs = Theme.of(context).colorScheme;
+    return GestureDetector(
+      onVerticalDragEnd: (details) {
+        if (details.velocity.pixelsPerSecond.dy > 300) widget.onClose();
+      },
+      child: Container(
+        decoration: BoxDecoration(
+          color: cs.surfaceContainerHighest,
+          borderRadius: const BorderRadius.vertical(top: Radius.circular(16)),
+          border: Border.all(color: cs.outlineVariant.withValues(alpha: 0.3)),
+        ),
+        child: Column(mainAxisSize: MainAxisSize.min, children: [
+          Container(
+            width: 36,
+            height: 4,
+            margin: const EdgeInsets.only(top: 8),
+            decoration: BoxDecoration(
+              color: cs.onSurfaceVariant.withValues(alpha: 0.4),
+              borderRadius: BorderRadius.circular(2),
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.fromLTRB(16, 12, 16, 4),
+            child: Row(children: [
+              Expanded(child: _buildButton(
+                label: 'Выбрать из файла',
+                icon: Symbols.folder_open,
+                filled: true,
+                onTap: _isUploading ? null : _pickAndUploadFile,
+                cs: cs,
+              )),
+              const SizedBox(width: 8),
+              Expanded(child: _buildButton(
+                label: 'Отправить по id',
+                icon: null,
+                filled: false,
+                onTap: _isUploading ? null : _uploadByFileId,
+                cs: cs,
+              )),
+            ]),
+          ),
+          if (_isUploading)
+            const Padding(
+              padding: EdgeInsets.symmetric(horizontal: 16, vertical: 4),
+              child: LinearProgressIndicator(),
+            )
+          else
+            Padding(
+              padding: const EdgeInsets.symmetric(horizontal: 16),
+              child: TextField(
+                controller: _fileIdController,
+                style: TextStyle(color: cs.onSurface, fontSize: 14),
+                keyboardType: TextInputType.number,
+                decoration: InputDecoration(
+                  hintText: 'fileId...',
+                  hintStyle: TextStyle(color: cs.onSurfaceVariant),
+                  border: InputBorder.none,
+                  isDense: true,
+                  contentPadding: const EdgeInsets.symmetric(vertical: 8),
+                ),
+              ),
+            ),
+          const Divider(height: 16),
+          Padding(
+            padding: const EdgeInsets.only(left: 16, bottom: 4),
+            child: Align(
+              alignment: Alignment.centerLeft,
+              child: Text('История', style: TextStyle(color: cs.onSurfaceVariant, fontSize: 12, fontWeight: FontWeight.w500)),
+            ),
+          ),
+          if (FileHistoryCache.isEmpty)
+            Padding(
+              padding: const EdgeInsets.all(24),
+              child: Text('история пуста...', style: TextStyle(color: cs.onSurfaceVariant, fontSize: 14)),
+            )
+          else
+            SizedBox(
+              height: 100,
+              child: ListView.builder(
+                scrollDirection: Axis.horizontal,
+                padding: const EdgeInsets.symmetric(horizontal: 12),
+                itemCount: FileHistoryCache.history.length,
+                itemBuilder: (ctx, idx) {
+                  final e = FileHistoryCache.history[idx];
+                  return Container(
+                    width: 72,
+                    margin: const EdgeInsets.only(right: 8, bottom: 8),
+                    decoration: BoxDecoration(
+                      color: cs.surfaceContainerLow,
+                      borderRadius: BorderRadius.circular(8),
+                      border: Border.all(color: cs.outlineVariant.withValues(alpha: 0.3)),
+                    ),
+                    child: Center(child: Column(
+                      mainAxisSize: MainAxisSize.min,
+                      children: [
+                        Icon(Symbols.description, color: cs.onSurfaceVariant, size: 28),
+                        const SizedBox(height: 4),
+                        Padding(
+                          padding: const EdgeInsets.symmetric(horizontal: 4),
+                          child: Text('${e.fileId}', style: TextStyle(color: cs.onSurfaceVariant, fontSize: 9), overflow: TextOverflow.ellipsis, textAlign: TextAlign.center),
+                        ),
+                      ],
+                    )),
+                  );
+                },
+              ),
+            ),
+          const SizedBox(height: 8),
+        ]),
+      ),
+    );
+  }
+
+  Widget _buildButton({
+    required String label,
+    required IconData? icon,
+    required bool filled,
+    required VoidCallback? onTap,
+    required ColorScheme cs,
+  }) {
+    return GestureDetector(
+      onTap: onTap,
+      child: Container(
+        padding: const EdgeInsets.symmetric(vertical: 10),
+        decoration: BoxDecoration(
+          color: filled ? cs.primaryContainer : cs.surfaceContainerLow,
+          borderRadius: BorderRadius.circular(10),
+          border: filled ? null : Border.all(color: cs.outlineVariant.withValues(alpha: 0.5)),
+        ),
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            if (icon != null) ...[
+              Icon(icon, size: 18, color: filled ? cs.onPrimaryContainer : cs.onSurface),
+              const SizedBox(width: 6),
+            ],
+            Text(label, style: TextStyle(
+              color: filled ? cs.onPrimaryContainer : cs.onSurface,
+              fontWeight: FontWeight.w500,
+              fontSize: 13,
+            )),
+          ],
+        ),
+      ),
+    );
+  }
+}
diff --git a/lib/frontend/widgets/message_bubble.dart b/lib/frontend/widgets/message_bubble.dart
index 69ec7f2..949ae9f 100644
--- a/lib/frontend/widgets/message_bubble.dart
+++ b/lib/frontend/widgets/message_bubble.dart
@@ -168,9 +168,9 @@ class MessageBubble extends StatelessWidget {
         );
       case BubbleShape.groupedMiddle:
         return BorderRadius.only(
-          topLeft: cornerTL,
+          topLeft: isMe ? cornerTL : smallRadius,
           topRight: smallRadius,
-          bottomLeft: cornerBL,
+          bottomLeft: isMe ? cornerBL : smallRadius,
           bottomRight: smallRadius,
         );
     }
diff --git a/pubspec.lock b/pubspec.lock
index 1644efb..d510664 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -81,6 +81,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.19.1"
+  cross_file:
+    dependency: transitive
+    description:
+      name: cross_file
+      sha256: "28bb3ae56f117b5aec029d702a90f57d285cd975c3c5c281eaca38dbc47c5937"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.5+2"
   crypto:
     dependency: transitive
     description:
@@ -169,6 +177,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "7.0.1"
+  file_picker:
+    dependency: "direct main"
+    description:
+      name: file_picker
+      sha256: ab13ae8ef5580a411c458d6207b6774a6c237d77ac37011b13994879f68a8810
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.3.7"
   fixnum:
     dependency: transitive
     description:
@@ -203,6 +219,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_plugin_android_lifecycle:
+    dependency: transitive
+    description:
+      name: flutter_plugin_android_lifecycle
+      sha256: "38d1c268de9097ff59cf0e844ac38759fc78f76836d37edad06fa21e182055a0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.34"
   flutter_secure_storage:
     dependency: "direct main"
     description:
@@ -294,7 +318,7 @@ packages:
     source: hosted
     version: "1.0.2"
   http:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: http
       sha256: "87721a4a50b19c7f1d49001e51409bddc46303966ce89a65af4f4e6004896412"
@@ -302,7 +326,7 @@ packages:
     source: hosted
     version: "1.6.0"
   http_parser:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: http_parser
       sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
diff --git a/pubspec.yaml b/pubspec.yaml
index 2e32aa1..cf9fd81 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -45,6 +45,9 @@ dependencies:
   flutter_timezone: ^5.0.1
   timezone: ^0.11.0
   flutter_secure_storage: ^10.0.0
+  http: ^1.4.0
+  http_parser: ^4.1.0
+  file_picker: ^8.0.0
   sqflite: ^2.4.2
   sqflite_common_ffi: ^2.4.0+2
   path: ^1.9.1