diff --git a/messages_devtools.go b/messages_devtools.go
index ca629ba..9e2a822 100644
--- a/messages_devtools.go
+++ b/messages_devtools.go
@@ -47,6 +47,13 @@ func init() {
 		"resource_gauge.high":     {"High", "偏高"},
 		"resource_gauge.critical": {"Critical", "危险"},
 
+		"refresh_interval_selector.off":        {"Auto refresh off", "不自动刷新"},
+		"refresh_interval_selector.refresh":    {"Refresh", "刷新"},
+		"refresh_interval_selector.refreshing": {"Refreshing", "正在刷新"},
+		"refresh_interval_selector.seconds":    {"Every %d s", "每 %d 秒"},
+		"refresh_interval_selector.minutes":    {"Every %d min", "每 %d 分钟"},
+		"refresh_interval_selector.label":      {"Refresh interval", "刷新间隔"},
+
 		"alert_list.empty": {"No alerts", "没有告警"},
 	})
 }
diff --git a/refresh_interval_selector.go b/refresh_interval_selector.go
new file mode 100644
index 0000000..f9a39e3
--- /dev/null
+++ b/refresh_interval_selector.go
@@ -0,0 +1,90 @@
+package mujica
+
+import (
+	"fmt"
+	"log/slog"
+	"time"
+
+	"github.com/egoist/mygo/ui"
+
+	"mujicaui/icons"
+)
+
+// RefreshIntervalSelectorOptions configure a RefreshIntervalSelector.
+type RefreshIntervalSelectorOptions struct {
+	// Intervals to offer besides Off; nil uses 5 s, 10 s, 30 s, 1 m and 5 m.
+	Intervals []time.Duration
+	// Refreshing shows the refresh in progress and holds the timer.
+	Refreshing bool
+	Disabled   bool
+}
+
+// RefreshResult reports this frame's events.
+type RefreshResult struct {
+	Element *ui.Element
+	// Refresh asks the caller to reload, by hand or because the interval elapsed.
+	Refresh bool
+	// Changed reports a new interval.
+	Changed bool
+}
+
+type refreshState struct{ last time.Time }
+
+var refreshDefaults = []time.Duration{5 * time.Second, 10 * time.Second, 30 * time.Second, time.Minute, 5 * time.Minute}
+
+// RefreshIntervalSelector picks an auto-refresh interval, zero for off, and refreshes by hand.
+func RefreshIntervalSelector(c *ui.Context, interval *time.Duration, opts RefreshIntervalSelectorOptions) RefreshResult {
+	if interval == nil {
+		panic("mujica: RefreshIntervalSelector needs an interval")
+	}
+	choices := opts.Intervals
+	if choices == nil {
+		choices = refreshDefaults
+	}
+	options := []SelectOption[time.Duration]{{Value: 0, Label: msg(c, "refresh_interval_selector.off")}}
+	known := *interval == 0
+	for _, d := range choices {
+		if d < time.Second {
+			panic("mujica: RefreshIntervalSelector intervals must be at least a second")
+		}
+		known = known || d == *interval
+		label := fmt.Sprintf(msg(c, "refresh_interval_selector.seconds"), int(d/time.Second))
+		if d%time.Minute == 0 {
+			label = fmt.Sprintf(msg(c, "refresh_interval_selector.minutes"), int(d/time.Minute))
+		}
+		options = append(options, SelectOption[time.Duration]{Value: d, Label: label})
+	}
+	if !known {
+		panic("mujica: RefreshIntervalSelector interval is not offered")
+	}
+	u := Density(c).Unit()
+	var r RefreshResult
+	r.Element = ui.Row(c).Shrink(0).Gap(u * 2).AlignItems(ui.Center).Disabled(opts.Disabled)
+	st := ui.Local(r.Element, "mujica.refresh", func() refreshState { return refreshState{last: c.Now()} })
+	locked := r.Element.IsDisabled()
+	r.Element.Children(func() {
+		label := msg(c, "refresh_interval_selector.refresh")
+		if opts.Refreshing {
+			Spinner(c, SpinnerOptions{Size: 14, Label: msg(c, "refresh_interval_selector.refreshing")})
+		}
+		if Button(c, label, ButtonOptions{Variant: Secondary, Icon: icons.Must("refresh-cw"), Disabled: locked || opts.Refreshing}).Clicked() && !locked {
+			r.Refresh = true
+		}
+		r.Changed = Select(c, interval, options, SelectOptions{Label: msg(c, "refresh_interval_selector.label"), Disabled: locked}).Changed()
+	})
+	if r.Changed || opts.Refreshing {
+		st.last = c.Now()
+	}
+	if *interval > 0 && !locked && !opts.Refreshing && !r.Refresh {
+		if wait := *interval - c.Now().Sub(st.last); wait > 0 {
+			c.After(wait)
+		} else {
+			r.Refresh = true
+		}
+	}
+	if r.Refresh {
+		st.last = c.Now()
+		slog.Debug("mujica: refresh_interval_selector refresh", "interval", *interval)
+	}
+	return r
+}
diff --git a/refresh_interval_selector_test.go b/refresh_interval_selector_test.go
new file mode 100644
index 0000000..c456eb6
--- /dev/null
+++ b/refresh_interval_selector_test.go
@@ -0,0 +1,86 @@
+package mujica
+
+import (
+	"testing"
+	"time"
+
+	"github.com/egoist/mygo/ui"
+)
+
+func refreshTester(interval *time.Duration, opts *RefreshIntervalSelectorOptions, refreshes, changes *int) *ui.Tester {
+	return ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		r := RefreshIntervalSelector(c, interval, *opts)
+		if r.Refresh {
+			*refreshes++
+		}
+		if r.Changed {
+			*changes++
+		}
+	}, 500, 300)
+}
+
+func TestRefreshIntervalSelectorManualAndAuto(t *testing.T) {
+	interval := time.Duration(0)
+	opts := RefreshIntervalSelectorOptions{Intervals: []time.Duration{time.Second, time.Minute}}
+	refreshes, changes := 0, 0
+	tt := refreshTester(&interval, &opts, &refreshes, &changes)
+	_ = tt.Click("Refresh")
+	if refreshes != 1 {
+		t.Fatalf("manual refreshes %d", refreshes)
+	}
+	time.Sleep(1100 * time.Millisecond)
+	tt.Frame()
+	if refreshes != 1 {
+		t.Fatal("refreshed while off")
+	}
+	_ = tt.Click("Refresh interval")
+	_ = tt.Click("Every 1 s")
+	if interval != time.Second || changes != 1 {
+		t.Fatalf("interval %v changes %d", interval, changes)
+	}
+	start := time.Now()
+	if !overlayUntil(tt, func() bool { return refreshes == 2 }) {
+		t.Fatal("no automatic refresh")
+	}
+	if time.Since(start) < 900*time.Millisecond {
+		t.Fatal("refreshed before the interval")
+	}
+}
+
+func TestRefreshIntervalSelectorRefreshingAndDisabled(t *testing.T) {
+	interval := time.Second
+	opts := RefreshIntervalSelectorOptions{Intervals: []time.Duration{time.Second}, Refreshing: true}
+	refreshes, changes := 0, 0
+	tt := refreshTester(&interval, &opts, &refreshes, &changes)
+	_ = tt.Click("Refresh")
+	time.Sleep(1100 * time.Millisecond)
+	tt.Frame()
+	if refreshes != 0 || !tt.HasText("Refresh") {
+		t.Fatalf("refreshing: %d", refreshes)
+	}
+	opts = RefreshIntervalSelectorOptions{Intervals: []time.Duration{time.Second}, Disabled: true}
+	tt.Frame()
+	time.Sleep(1100 * time.Millisecond)
+	tt.Frame()
+	_ = tt.Click("Refresh")
+	if refreshes != 0 {
+		t.Fatalf("disabled refreshed %d", refreshes)
+	}
+	defer func() {
+		if recover() == nil {
+			t.Fatal("unoffered interval did not panic")
+		}
+	}()
+	bad := 7 * time.Second
+	refreshTester(&bad, &RefreshIntervalSelectorOptions{}, &refreshes, &changes)
+}
+
+func TestRefreshIntervalSelectorSnapshot(t *testing.T) {
+	snapshot(t, "refresh_interval_selector", 420, 80, func(c *ui.Context) {
+		interval := 30 * time.Second
+		ui.Column(c).Padding(16).Children(func() {
+			RefreshIntervalSelector(c, &interval, RefreshIntervalSelectorOptions{})
+		})
+	})
+}
diff --git a/testdata/snapshots/darwin/refresh_interval_selector-dark.png b/testdata/snapshots/darwin/refresh_interval_selector-dark.png
new file mode 100644
index 0000000..8d76da9
Binary files /dev/null and b/testdata/snapshots/darwin/refresh_interval_selector-dark.png differ
diff --git a/testdata/snapshots/darwin/refresh_interval_selector-light.png b/testdata/snapshots/darwin/refresh_interval_selector-light.png
new file mode 100644
index 0000000..586fba2
Binary files /dev/null and b/testdata/snapshots/darwin/refresh_interval_selector-light.png differ