diff --git a/lib/painter.dart b/lib/painter.dart
index 261f66b..12d8a00 100644
--- a/lib/painter.dart
+++ b/lib/painter.dart
@@ -198,6 +198,7 @@ class PainterController extends ChangeNotifier {
   Color _drawColor = new Color.fromARGB(255, 0, 0, 0);
   Color _backgroundColor = new Color.fromARGB(255, 255, 255, 255);
   bool _eraseMode = false;
+  bool _rounded = false;
 
   double _thickness = 1.0;
   PictureDetails? _cached;
@@ -221,6 +222,15 @@ class PainterController extends ChangeNotifier {
     _updatePaint();
   }
 
+  /// Whether line caps and joins will be rounded.
+  bool get rounded => _rounded;
+
+  /// If set to true, line caps and joins will be rounded.
+  set rounded(bool enabled) {
+    _rounded = enabled;
+    _updatePaint();
+  }
+
   /// Retrieves the current draw color.
   Color get drawColor => _drawColor;
 
@@ -259,6 +269,10 @@ class PainterController extends ChangeNotifier {
     }
     paint.style = PaintingStyle.stroke;
     paint.strokeWidth = thickness;
+    if (_rounded) {
+      paint.strokeCap = StrokeCap.round;
+      paint.strokeJoin = StrokeJoin.round;
+    }
     _pathHistory.currentPaint = paint;
     _pathHistory.setBackgroundColor(backgroundColor);
     notifyListeners();