diff --git a/cmd/tui/main.go b/cmd/tui/main.go
index 254e9cf..cfb33dc 100644
--- a/cmd/tui/main.go
+++ b/cmd/tui/main.go
@@ -4,11 +4,13 @@ import (
 	"bytes"
 	"fmt"
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
 
+	"github.com/charmbracelet/bubbles/filepicker"
 	"github.com/charmbracelet/bubbles/textinput"
-	"github.com/charmbracelet/bubbletea"
+	tea "github.com/charmbracelet/bubbletea"
 	"github.com/charmbracelet/lipgloss"
 
 	"bspviz/internal/app"
@@ -63,6 +65,8 @@ type model struct {
 	output       string
 	errMsg       string
 	running      bool
+	showPicker   bool
+	picker       filepicker.Model
 }
 
 func initialModel() model {
@@ -108,6 +112,17 @@ func initialModel() model {
 		m.inputs[i] = ti
 	}
 
+	picker := filepicker.New()
+	picker.AllowedTypes = []string{".wad", ".WAD"}
+	picker.DirAllowed = false
+	picker.FileAllowed = true
+	picker.ShowPermissions = false
+	picker.ShowSize = true
+	picker.ShowHidden = false
+	picker.AutoHeight = false
+	picker.Height = 12
+	m.picker = picker
+
 	m.setFocus(0)
 	return m
 }
@@ -117,6 +132,29 @@ func (m model) Init() tea.Cmd {
 }
 
 func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	if m.showPicker {
+		switch key := msg.(type) {
+		case tea.KeyMsg:
+			if key.Type == tea.KeyEsc {
+				m.showPicker = false
+				m.status = "Dateiauswahl abgebrochen"
+				return m, nil
+			}
+		}
+
+		var cmd tea.Cmd
+		m.picker, cmd = m.picker.Update(msg)
+		if selected, path := m.picker.DidSelectFile(msg); selected {
+			m.inputs[inputWadPath].SetValue(path)
+			m.showPicker = false
+			m.status = "WAD gewählt"
+			m.errMsg = ""
+			m.setFocus(inputWadPath)
+			return m, cmd
+		}
+		return m, cmd
+	}
+
 	switch msg := msg.(type) {
 	case tea.KeyMsg:
 		switch msg.String() {
@@ -142,6 +180,28 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 					m.toggles[idx] = !m.toggles[idx]
 				}
 			}
+		case "f2":
+			if !m.running {
+				current := strings.TrimSpace(m.inputs[inputWadPath].Value())
+				if current != "" {
+					info, err := os.Stat(current)
+					if err == nil {
+						if info.IsDir() {
+							m.picker.CurrentDirectory = current
+						} else {
+							m.picker.CurrentDirectory = filepath.Dir(current)
+						}
+					} else {
+						m.picker.CurrentDirectory = filepath.Dir(current)
+					}
+				} else {
+					m.picker.CurrentDirectory = "."
+				}
+				m.showPicker = true
+				m.status = "Datei auswählen"
+				m.errMsg = ""
+				return m, m.picker.Init()
+			}
 		case "ctrl+r":
 			if !m.running {
 				var cmd tea.Cmd
@@ -215,6 +275,12 @@ func (m model) View() string {
 		b.WriteString("\n")
 	}
 
+	if m.showPicker {
+		b.WriteString("\nDatei auswählen (Enter übernehmen, Esc abbrechen)\n")
+		b.WriteString(boxStyle.Render(m.picker.View()))
+		b.WriteString("\n")
+	}
+
 	if m.output != "" {
 		b.WriteString("\n")
 		b.WriteString(boxStyle.Render(m.output))
@@ -222,7 +288,7 @@ func (m model) View() string {
 	}
 
 	b.WriteString("\n")
-	b.WriteString("Steuerung: TAB/Shift+TAB navigieren • Space toggeln • Ctrl+R ausführen • Ctrl+C beenden")
+	b.WriteString("Steuerung: TAB/Shift+TAB navigieren • Space toggeln • Ctrl+R ausführen • F2 Datei wählen • Ctrl+C beenden")
 	b.WriteString("\n")
 
 	return b.String()
diff --git a/go.mod b/go.mod
index 5696909..45e19ea 100644
--- a/go.mod
+++ b/go.mod
@@ -16,6 +16,7 @@ require (
 	github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd // indirect
 	github.com/charmbracelet/x/term v0.2.1 // indirect
 	github.com/containerd/console v1.0.4-0.20230313162750-1ae8d489ac81 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
diff --git a/go.sum b/go.sum
index 1030bd8..c76533e 100644
--- a/go.sum
+++ b/go.sum
@@ -18,6 +18,8 @@ github.com/charmbracelet/x/term v0.2.1 h1:AQeHeLZ1OqSXhrAWpYUtZyX1T3zVxfpZuEQMIQ
 github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg=
 github.com/containerd/console v1.0.4-0.20230313162750-1ae8d489ac81 h1:q2hJAaP1k2wIvVRd/hEHD7lacgqrCPS+k8g1MndzfWY=
 github.com/containerd/console v1.0.4-0.20230313162750-1ae8d489ac81/go.mod h1:YynlIjWYF8myEu6sdkwKIvGQq+cOckRm6So2avqoYAk=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=