diff --git a/internal/editor/helpers_test.go b/internal/editor/helpers_test.go
index 040eb6b..304624b 100644
--- a/internal/editor/helpers_test.go
+++ b/internal/editor/helpers_test.go
@@ -23,6 +23,8 @@ func sendKeys(tm *teatest.TestModel, keys ...string) {
 			tm.Send(tea.KeyMsg{Type: tea.KeyCtrlC})
 		case "ctrl+d":
 			tm.Send(tea.KeyMsg{Type: tea.KeyCtrlD})
+		case "ctrl+v":
+			tm.Send(tea.KeyMsg{Type: tea.KeyCtrlV})
 		default:
 			tm.Send(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune(key)})
 		}
diff --git a/internal/editor/integration_visual_test.go b/internal/editor/integration_visual_test.go
new file mode 100644
index 0000000..f933e38
--- /dev/null
+++ b/internal/editor/integration_visual_test.go
@@ -0,0 +1,272 @@
+package editor
+
+import (
+	"testing"
+
+	"git.gophernest.net/azpect/TextEditor/internal/action"
+)
+
+// --- Visual Mode Selection State Tests ---
+
+func TestVisualModeSelectionState(t *testing.T) {
+	t.Run("test 'v' enters visual mode and sets anchor at cursor", func(t *testing.T) {
+		lines := []string{"hello world"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 3, Line: 0})
+		sendKeys(tm, "v")
+
+		m := getFinalModel(t, tm)
+		if m.Mode() != action.VisualMode {
+			t.Errorf("Mode() = %v, want VisualMode", m.Mode())
+		}
+		if m.AnchorX() != 3 {
+			t.Errorf("AnchorX() = %d, want 3", m.AnchorX())
+		}
+		if m.AnchorY() != 0 {
+			t.Errorf("AnchorY() = %d, want 0", m.AnchorY())
+		}
+	})
+
+	t.Run("test 'vl' moves cursor right, anchor stays", func(t *testing.T) {
+		lines := []string{"hello world"}
+		tm := newTestModelWithLines(t, lines)
+		sendKeys(tm, "v", "l")
+
+		m := getFinalModel(t, tm)
+		if m.AnchorX() != 0 {
+			t.Errorf("AnchorX() = %d, want 0", m.AnchorX())
+		}
+		if m.CursorX() != 1 {
+			t.Errorf("CursorX() = %d, want 1", m.CursorX())
+		}
+	})
+
+	t.Run("test 'vh' creates backward selection", func(t *testing.T) {
+		lines := []string{"hello world"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 3, Line: 0})
+		sendKeys(tm, "v", "h")
+
+		m := getFinalModel(t, tm)
+		if m.AnchorX() != 3 {
+			t.Errorf("AnchorX() = %d, want 3", m.AnchorX())
+		}
+		if m.CursorX() != 2 {
+			t.Errorf("CursorX() = %d, want 2", m.CursorX())
+		}
+	})
+
+	t.Run("test 'vj' extends selection down", func(t *testing.T) {
+		lines := []string{"hello", "world"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 2, Line: 0})
+		sendKeys(tm, "v", "j")
+
+		m := getFinalModel(t, tm)
+		if m.AnchorX() != 2 {
+			t.Errorf("AnchorX() = %d, want 2", m.AnchorX())
+		}
+		if m.AnchorY() != 0 {
+			t.Errorf("AnchorY() = %d, want 0", m.AnchorY())
+		}
+		if m.CursorY() != 1 {
+			t.Errorf("CursorY() = %d, want 1", m.CursorY())
+		}
+	})
+
+	t.Run("test 'V' enters visual line mode and sets anchor at cursor", func(t *testing.T) {
+		lines := []string{"hello", "world"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 0, Line: 1})
+		sendKeys(tm, "V")
+
+		m := getFinalModel(t, tm)
+		if m.Mode() != action.VisualLineMode {
+			t.Errorf("Mode() = %v, want VisualLineMode", m.Mode())
+		}
+		if m.AnchorY() != 1 {
+			t.Errorf("AnchorY() = %d, want 1", m.AnchorY())
+		}
+	})
+
+	t.Run("test 'ctrl+v' enters visual block mode and sets anchor at cursor", func(t *testing.T) {
+		lines := []string{"hello", "world"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 2, Line: 1})
+		sendKeys(tm, "ctrl+v")
+
+		m := getFinalModel(t, tm)
+		if m.Mode() != action.VisualBlockMode {
+			t.Errorf("Mode() = %v, want VisualBlockMode", m.Mode())
+		}
+		if m.AnchorX() != 2 {
+			t.Errorf("AnchorX() = %d, want 2", m.AnchorX())
+		}
+		if m.AnchorY() != 1 {
+			t.Errorf("AnchorY() = %d, want 1", m.AnchorY())
+		}
+	})
+
+	t.Run("test 'esc' returns to normal mode from visual", func(t *testing.T) {
+		lines := []string{"hello world"}
+		tm := newTestModelWithLines(t, lines)
+		sendKeys(tm, "v", "l", "l", "esc")
+
+		m := getFinalModel(t, tm)
+		if m.Mode() != action.NormalMode {
+			t.Errorf("Mode() = %v, want NormalMode", m.Mode())
+		}
+	})
+}
+
+// --- Visual Mode Delete Tests ---
+
+func TestVisualModeDelete(t *testing.T) {
+	t.Run("test 'vd' deletes single char under cursor", func(t *testing.T) {
+		lines := []string{"hello"}
+		tm := newTestModelWithLines(t, lines)
+		sendKeys(tm, "v", "d")
+
+		m := getFinalModel(t, tm)
+		if m.Line(0) != "ello" {
+			t.Errorf("Line(0) = %q, want \"ello\"", m.Line(0))
+		}
+		if m.CursorX() != 0 {
+			t.Errorf("CursorX() = %d, want 0", m.CursorX())
+		}
+	})
+
+	t.Run("test 'vlll d' deletes four chars on same line", func(t *testing.T) {
+		lines := []string{"hello world"}
+		tm := newTestModelWithLines(t, lines)
+		sendKeys(tm, "v", "l", "l", "l", "d")
+
+		m := getFinalModel(t, tm)
+		if m.Line(0) != "o world" {
+			t.Errorf("Line(0) = %q, want \"o world\"", m.Line(0))
+		}
+		if m.CursorX() != 0 {
+			t.Errorf("CursorX() = %d, want 0", m.CursorX())
+		}
+	})
+
+	t.Run("test 'v' backward selection 'hh d' deletes correct range", func(t *testing.T) {
+		lines := []string{"hello"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 3, Line: 0})
+		sendKeys(tm, "v", "h", "h", "d")
+
+		// anchor=3, cursor=1 → normalized start=1, end=3 → delete "ell" → "ho"
+		m := getFinalModel(t, tm)
+		if m.Line(0) != "ho" {
+			t.Errorf("Line(0) = %q, want \"ho\"", m.Line(0))
+		}
+		if m.CursorX() != 1 {
+			t.Errorf("CursorX() = %d, want 1", m.CursorX())
+		}
+	})
+
+	t.Run("test 'vj d' deletes char selection across two lines", func(t *testing.T) {
+		lines := []string{"hello", "world"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 2, Line: 0})
+		sendKeys(tm, "v", "j", "d")
+
+		// start=(2,0), end=(2,1) → prefix="he", suffix="ld" → "held"
+		m := getFinalModel(t, tm)
+		if m.LineCount() != 1 {
+			t.Errorf("LineCount() = %d, want 1", m.LineCount())
+		}
+		if m.Line(0) != "held" {
+			t.Errorf("Line(0) = %q, want \"held\"", m.Line(0))
+		}
+		if m.CursorX() != 2 {
+			t.Errorf("CursorX() = %d, want 2", m.CursorX())
+		}
+		if m.CursorY() != 0 {
+			t.Errorf("CursorY() = %d, want 0", m.CursorY())
+		}
+	})
+
+	t.Run("test 'Vd' deletes current line", func(t *testing.T) {
+		lines := []string{"hello", "world"}
+		tm := newTestModelWithLines(t, lines)
+		sendKeys(tm, "V", "d")
+
+		m := getFinalModel(t, tm)
+		if m.LineCount() != 1 {
+			t.Errorf("LineCount() = %d, want 1", m.LineCount())
+		}
+		if m.Line(0) != "world" {
+			t.Errorf("Line(0) = %q, want \"world\"", m.Line(0))
+		}
+		if m.CursorY() != 0 {
+			t.Errorf("CursorY() = %d, want 0", m.CursorY())
+		}
+	})
+
+	t.Run("test 'Vjd' deletes two lines", func(t *testing.T) {
+		lines := []string{"hello", "world", "testing"}
+		tm := newTestModelWithLines(t, lines)
+		sendKeys(tm, "V", "j", "d")
+
+		m := getFinalModel(t, tm)
+		if m.LineCount() != 1 {
+			t.Errorf("LineCount() = %d, want 1", m.LineCount())
+		}
+		if m.Line(0) != "testing" {
+			t.Errorf("Line(0) = %q, want \"testing\"", m.Line(0))
+		}
+		if m.CursorY() != 0 {
+			t.Errorf("CursorY() = %d, want 0", m.CursorY())
+		}
+	})
+
+	t.Run("test 'Vkd' deletes two lines with backward selection", func(t *testing.T) {
+		lines := []string{"hello", "world", "testing"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 0, Line: 2})
+		sendKeys(tm, "V", "k", "d")
+
+		// anchor=line2, cursor=line1 → normalized start=line1, end=line2 → delete both
+		m := getFinalModel(t, tm)
+		if m.LineCount() != 1 {
+			t.Errorf("LineCount() = %d, want 1", m.LineCount())
+		}
+		if m.Line(0) != "hello" {
+			t.Errorf("Line(0) = %q, want \"hello\"", m.Line(0))
+		}
+	})
+
+	t.Run("test 'ctrl+v ljd' deletes block selection", func(t *testing.T) {
+		lines := []string{"hello", "world"}
+		tm := newTestModelWithLines(t, lines)
+		sendKeys(tm, "ctrl+v", "l", "j", "d")
+
+		// anchor=(0,0), cursor=(1,1) → block cols 0-1, lines 0-1
+		// "hello"[:0]+"hello"[2:] = "llo"
+		// "world"[:0]+"world"[2:] = "rld"
+		m := getFinalModel(t, tm)
+		if m.Line(0) != "llo" {
+			t.Errorf("Line(0) = %q, want \"llo\"", m.Line(0))
+		}
+		if m.Line(1) != "rld" {
+			t.Errorf("Line(1) = %q, want \"rld\"", m.Line(1))
+		}
+		if m.CursorX() != 0 {
+			t.Errorf("CursorX() = %d, want 0", m.CursorX())
+		}
+		if m.CursorY() != 0 {
+			t.Errorf("CursorY() = %d, want 0", m.CursorY())
+		}
+	})
+
+	t.Run("test 'ctrl+v' backward col selection deletes correct block", func(t *testing.T) {
+		lines := []string{"hello", "world"}
+		tm := newTestModelWithLinesAndCursorPos(t, lines, action.Position{Col: 3, Line: 0})
+		sendKeys(tm, "ctrl+v", "h", "h", "j", "d")
+
+		// anchor=(3,0), cursor=(1,1) → cols min(3,1)=1 to max(3,1)=3, lines 0-1
+		// "hello"[:1]+"hello"[4:] = "h"+"o" = "ho"
+		// "world"[:1]+"world"[4:] = "w"+"d" = "wd"
+		m := getFinalModel(t, tm)
+		if m.Line(0) != "ho" {
+			t.Errorf("Line(0) = %q, want \"ho\"", m.Line(0))
+		}
+		if m.Line(1) != "wd" {
+			t.Errorf("Line(1) = %q, want \"wd\"", m.Line(1))
+		}
+	})
+}