diff --git a/flash_tool/web_flasher.py b/flash_tool/web_flasher.py
index 0e48289..c387a83 100644
--- a/flash_tool/web_flasher.py
+++ b/flash_tool/web_flasher.py
@@ -315,6 +315,12 @@ def open_browser(port):
 
 def main():
     """Run the web server"""
+    import logging
+
+    # Disable Flask request logging to avoid colorama issues with stdout redirection
+    log = logging.getLogger('werkzeug')
+    log.setLevel(logging.ERROR)
+
     port = get_free_port()
     print(f"Starting ESP32 Flasher on port {port}...")
     print(f"Open your browser to: http://127.0.0.1:{port}")
@@ -327,7 +333,7 @@ def main():
 
     # Run Flask server with SocketIO
     try:
-        socketio.run(app, host='127.0.0.1', port=port, debug=False, allow_unsafe_werkzeug=True)
+        socketio.run(app, host='127.0.0.1', port=port, debug=False, allow_unsafe_werkzeug=True, log_output=False)
     except KeyboardInterrupt:
         print('\nShutting down...')
     except SystemExit: