diff --git a/Cargo.lock b/Cargo.lock
index ec9a61f1..93649695 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -395,6 +395,12 @@ dependencies = [
  "rustc-demangle",
 ]
 
+[[package]]
+name = "base64"
+version = "0.21.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
+
 [[package]]
 name = "base64"
 version = "0.22.1"
@@ -1132,6 +1138,7 @@ dependencies = [
  "epaint",
  "log",
  "nohash-hasher",
+ "ron",
  "serde",
 ]
 
@@ -3113,7 +3120,7 @@ version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "566cafdd92868e0939d3fb961bd0dc25fcfaaed179291093b3d43e6b3150ea10"
 dependencies = [
- "base64",
+ "base64 0.22.1",
  "bytes",
  "encoding_rs",
  "futures-channel",
@@ -3182,6 +3189,18 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "ron"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b91f7eff05f748767f183df4320a63d6936e9c6107d97c9e6bdd9784f4289c94"
+dependencies = [
+ "base64 0.21.7",
+ "bitflags 2.5.0",
+ "serde",
+ "serde_derive",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
@@ -3213,7 +3232,7 @@ version = "2.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "29993a25686778eb88d4189742cd713c9bce943bc54251a33509dc63cbacf73d"
 dependencies = [
- "base64",
+ "base64 0.22.1",
  "rustls-pki-types",
 ]
 
diff --git a/tetanes/Cargo.toml b/tetanes/Cargo.toml
index bc280076..e72a96d4 100644
--- a/tetanes/Cargo.toml
+++ b/tetanes/Cargo.toml
@@ -51,7 +51,11 @@ crossbeam = "0.8"
 # TODO: Remove once https://github.com/emilk/egui/pull/4372 is released
 color-hex = "0.2"
 dirs.workspace = true
-egui = { version = "0.27", features = ["extra_debug_asserts", "log"] }
+egui = { version = "0.27", features = [
+  "extra_debug_asserts",
+  "log",
+  "persistence",
+] }
 egui-wgpu = { version = "0.27", features = ["winit", "wayland", "x11"] }
 egui_extras = { version = "0.27", default-features = false, features = [
   "image",
diff --git a/tetanes/src/nes/event.rs b/tetanes/src/nes/event.rs
index 3cc1b3b2..8f3aba0a 100644
--- a/tetanes/src/nes/event.rs
+++ b/tetanes/src/nes/event.rs
@@ -483,6 +483,9 @@ impl Running {
                 #[cfg(feature = "profiling")]
                 puffin::set_scopes_on(false);
 
+                if let Err(err) = self.renderer.save() {
+                    error!("failed to save rendererer state: {err:?}");
+                }
                 self.renderer.destroy();
 
                 if let Err(err) = self.cfg.save() {
diff --git a/tetanes/src/nes/renderer.rs b/tetanes/src/nes/renderer.rs
index 1f9d8afb..5b30f21c 100644
--- a/tetanes/src/nes/renderer.rs
+++ b/tetanes/src/nes/renderer.rs
@@ -11,6 +11,7 @@ use crate::{
     platform::{self, BuilderExt},
     thread,
 };
+use anyhow::Context;
 use egui::{
     ahash::HashMap, DeferredViewportUiCallback, ImmediateViewport, SystemTheme, Vec2,
     ViewportBuilder, ViewportClass, ViewportCommand, ViewportId, ViewportIdMap, ViewportIdPair,
@@ -21,6 +22,7 @@ use egui_winit::EventResponse;
 use parking_lot::Mutex;
 use std::{cell::RefCell, collections::hash_map::Entry, rc::Rc, sync::Arc};
 use tetanes_core::{
+    fs,
     ppu::Ppu,
     time::{Duration, Instant},
     video::Frame,
@@ -29,7 +31,7 @@ use thingbuf::{
     mpsc::{blocking::Receiver as BufReceiver, errors::TryRecvError},
     Recycle,
 };
-use tracing::{debug, error, warn};
+use tracing::{debug, error, info, warn};
 use winit::{
     event::WindowEvent,
     event_loop::{EventLoopProxy, EventLoopWindowTarget},
@@ -257,6 +259,10 @@ impl Renderer {
             });
         }
 
+        if let Err(err) = Self::load(&ctx) {
+            tracing::error!("{err:?}");
+        }
+
         Ok(Self {
             state,
             frame_rx,
@@ -632,6 +638,31 @@ impl Renderer {
         self.gui.error = Some(err.to_string());
     }
 
+    pub fn load(ctx: &egui::Context) -> anyhow::Result<()> {
+        let path = Config::default_config_dir().join("gui.dat");
+        if fs::exists(&path) {
+            let data = fs::load_raw(path).context("failed to load gui memory")?;
+            let memory = bincode::deserialize(&data).context("failed to deserialize gui memory")?;
+            ctx.memory_mut(|mem| {
+                *mem = memory;
+            });
+            info!("Loaded UI state");
+        }
+        Ok(())
+    }
+
+    pub fn save(&self) -> anyhow::Result<()> {
+        let path = Config::default_config_dir().join("gui.dat");
+        self.ctx.memory(|mem| {
+            let data = bincode::serialize(&mem).context("failed to serialize gui memory")?;
+            fs::save_raw(path, &data).context("failed to save gui memory")
+        })?;
+
+        info!("Saved UI state");
+
+        Ok(())
+    }
+
     pub fn create_window(
         event_loop: &EventLoopWindowTarget<NesEvent>,
         ctx: &egui::Context,