diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9574b89d..039183c0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,6 +24,7 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get -yq --no-install-suggests --no-install-recommends install libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libasound2-dev libxkbcommon-dev # egui_glium dependencies
+          sudo apt-get install libgtk-3-dev # rfd dependencies
 
       # make sure all code has been formatted with rustfmt
       - run: rustup component add rustfmt
@@ -66,6 +67,7 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get -yq --no-install-suggests --no-install-recommends install libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libasound2-dev libxkbcommon-dev # egui_glium dependencies
+          sudo apt-get install libgtk-3-dev # rfd dependencies
       - name: cargo test build
         uses: actions-rs/cargo@v1
         with:
diff --git a/Cargo.lock b/Cargo.lock
index bf96f4ec..52917d9c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -110,6 +110,18 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a61eb019cb8f415d162cb9f12130ee6bbe9168b7d953c17f4ad049e4051ca00"
 
+[[package]]
+name = "atk-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "badcf670157c84bb8b1cf6b5f70b650fed78da2033c9eed84c4e49b11cbe83ea"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "system-deps",
+]
+
 [[package]]
 name = "atomic_refcell"
 version = "0.1.7"
@@ -223,6 +235,16 @@ version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
+[[package]]
+name = "cairo-sys-rs"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7c9c3928781e8a017ece15eace05230f04b647457d170d2d9641c94a444ff80"
+dependencies = [
+ "libc",
+ "system-deps",
+]
+
 [[package]]
 name = "calloop"
 version = "0.6.5"
@@ -248,6 +270,15 @@ version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e70cc2f62c6ce1868963827bd677764c62d07c3d9a3e1fb1177ee1a9ab199eb2"
 
+[[package]]
+name = "cfg-expr"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b412e83326147c2bb881f8b40edfbf9905b9b8abaebd0e47ca190ba62fda8f0e"
+dependencies = [
+ "smallvec 1.6.1",
+]
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
@@ -729,8 +760,7 @@ checksum = "9ea835d29036a4087793836fa931b08837ad5e957da9e23886b29586fb9b6650"
 [[package]]
 name = "eframe"
 version = "0.13.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3677cb27e360092b5078c5aaae1edf4b84d900b2e5ee61e93c71c4f2574e97a"
+source = "git+https://github.com/emilk/egui?rev=f8a304225851165c817f7ceb3a0c2b9c78b2b177#f8a304225851165c817f7ceb3a0c2b9c78b2b177"
 dependencies = [
  "egui",
  "egui_glium",
@@ -741,8 +771,7 @@ dependencies = [
 [[package]]
 name = "egui"
 version = "0.13.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77f9b394ccacc0cccb30f6de7371038a116931aa3186acd908b9ec61f405f15c"
+source = "git+https://github.com/emilk/egui?rev=f8a304225851165c817f7ceb3a0c2b9c78b2b177#f8a304225851165c817f7ceb3a0c2b9c78b2b177"
 dependencies = [
  "epaint",
  "ron",
@@ -775,8 +804,7 @@ dependencies = [
 [[package]]
 name = "egui_glium"
 version = "0.13.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da94629a664a360708c91495dbae0a55c0e05acec5e05fcc6c99beabd6036036"
+source = "git+https://github.com/emilk/egui?rev=f8a304225851165c817f7ceb3a0c2b9c78b2b177#f8a304225851165c817f7ceb3a0c2b9c78b2b177"
 dependencies = [
  "copypasta",
  "directories-next",
@@ -791,8 +819,7 @@ dependencies = [
 [[package]]
 name = "egui_web"
 version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce8d91b33af1d26ba3f7b22819e7bfdcb596e2d3a382eacec2363960eacdf643"
+source = "git+https://github.com/emilk/egui?rev=f8a304225851165c817f7ceb3a0c2b9c78b2b177#f8a304225851165c817f7ceb3a0c2b9c78b2b177"
 dependencies = [
  "egui",
  "epi",
@@ -813,8 +840,7 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 [[package]]
 name = "emath"
 version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "80eea7508c08a7b4e2a041adcdca6f400d8606622c6bb980ecbbdc5f1aff9a4c"
+source = "git+https://github.com/emilk/egui?rev=f8a304225851165c817f7ceb3a0c2b9c78b2b177#f8a304225851165c817f7ceb3a0c2b9c78b2b177"
 dependencies = [
  "serde",
 ]
@@ -822,8 +848,7 @@ dependencies = [
 [[package]]
 name = "epaint"
 version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "132e30d483d9fa252fe06aa112de777d068503c379fa51bc5834204ee3258fce"
+source = "git+https://github.com/emilk/egui?rev=f8a304225851165c817f7ceb3a0c2b9c78b2b177#f8a304225851165c817f7ceb3a0c2b9c78b2b177"
 dependencies = [
  "ab_glyph",
  "ahash 0.7.4",
@@ -836,8 +861,7 @@ dependencies = [
 [[package]]
 name = "epi"
 version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b04a4a240553fa9254d0569cf3aa22d9dbe77a66025e1f04b0785744629c9ec"
+source = "git+https://github.com/emilk/egui?rev=f8a304225851165c817f7ceb3a0c2b9c78b2b177#f8a304225851165c817f7ceb3a0c2b9c78b2b177"
 dependencies = [
  "egui",
  "ron",
@@ -891,6 +915,36 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 
+[[package]]
+name = "gdk-pixbuf-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f097c0704201fbc8f69c1762dc58c6947c8bb188b8ed0bc7e65259f1894fe590"
+dependencies = [
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "system-deps",
+]
+
+[[package]]
+name = "gdk-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e091b3d3d6696949ac3b3fb3c62090e5bfd7bd6850bef5c3c5ea701de1b1f1e"
+dependencies = [
+ "cairo-sys-rs",
+ "gdk-pixbuf-sys",
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pango-sys",
+ "pkg-config",
+ "system-deps",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.3"
@@ -908,6 +962,19 @@ version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0a01e0497841a3b2db4f8afa483cce65f7e96a3498bd6c541734792aeac8fe7"
 
+[[package]]
+name = "gio-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0a41df66e57fcc287c4bcf74fc26b884f31901ea9792ec75607289b456f48fa"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "system-deps",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "gl_generator"
 version = "0.14.0"
@@ -925,6 +992,16 @@ version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "333928d5eb103c5d4050533cec0384302db6be8ef7d3cebd30ec6a35350353da"
 
+[[package]]
+name = "glib-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c1d60554a212445e2a858e42a0e48cece1bd57b311a19a9468f70376cf554ae"
+dependencies = [
+ "libc",
+ "system-deps",
+]
+
 [[package]]
 name = "glium"
 version = "0.29.1"
@@ -1056,6 +1133,35 @@ dependencies = [
  "gl_generator",
 ]
 
+[[package]]
+name = "gobject-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa92cae29759dae34ab5921d73fff5ad54b3d794ab842c117e36cafc7994c3f5"
+dependencies = [
+ "glib-sys",
+ "libc",
+ "system-deps",
+]
+
+[[package]]
+name = "gtk-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c14c8d3da0545785a7c5a120345b3abb534010fb8ae0f2ef3f47c027fba303e"
+dependencies = [
+ "atk-sys",
+ "cairo-sys-rs",
+ "gdk-pixbuf-sys",
+ "gdk-sys",
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pango-sys",
+ "system-deps",
+]
+
 [[package]]
 name = "half"
 version = "1.7.1"
@@ -1812,6 +1918,18 @@ dependencies = [
  "ttf-parser 0.12.3",
 ]
 
+[[package]]
+name = "pango-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2367099ca5e761546ba1d501955079f097caa186bb53ce0f718dca99ac1942fe"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "system-deps",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.11.1"
@@ -1979,6 +2097,7 @@ dependencies = [
  "puffin",
  "puffin_egui",
  "puffin_http",
+ "rfd",
  "simple_logger",
 ]
 
@@ -2109,6 +2228,29 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e9c17925a9027d298a4603d286befe3f9dc0e8ed02523141914eb628798d6e5b"
 
+[[package]]
+name = "rfd"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cede43618603a102f37bb58244534a33de7daa6a3b77f00277675eef5f8174fe"
+dependencies = [
+ "block",
+ "dispatch",
+ "glib-sys",
+ "gobject-sys",
+ "gtk-sys",
+ "js-sys",
+ "lazy_static",
+ "objc",
+ "objc-foundation",
+ "objc_id",
+ "raw-window-handle",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "ron"
 version = "0.6.4"
@@ -2388,6 +2530,24 @@ version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
 
+[[package]]
+name = "strum"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aaf86bbcfd1fa9670b7a129f64fc0c9fcbbfe4f1bc4210e9e98fe71ffc12cde2"
+
+[[package]]
+name = "strum_macros"
+version = "0.21.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d06aaeeee809dbc59eb4556183dd927df67db1540de5be8d3ec0b6636358a5ec"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "syn"
 version = "1.0.75"
@@ -2399,6 +2559,24 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "system-deps"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "480c269f870722b3b08d2f13053ce0c2ab722839f472863c3e2d61ff3a1c2fa6"
+dependencies = [
+ "anyhow",
+ "cfg-expr",
+ "heck",
+ "itertools",
+ "pkg-config",
+ "strum",
+ "strum_macros",
+ "thiserror",
+ "toml",
+ "version-compare",
+]
+
 [[package]]
 name = "takeable-option"
 version = "0.5.0"
@@ -2503,6 +2681,12 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
+[[package]]
+name = "version-compare"
+version = "0.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c18c859eead79d8b95d09e4678566e8d70105c4e7b251f707a03df32442661b"
+
 [[package]]
 name = "version_check"
 version = "0.9.3"
diff --git a/Cargo.toml b/Cargo.toml
index 757c3d77..01f6073e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,3 +6,7 @@ members = [
     "puffin-imgui",
     "puffin_viewer",
 ]
+
+[patch.crates-io]
+eframe = { git = "https://github.com/emilk/egui", rev = "f8a304225851165c817f7ceb3a0c2b9c78b2b177" }
+egui = { git = "https://github.com/emilk/egui", rev = "f8a304225851165c817f7ceb3a0c2b9c78b2b177" }
diff --git a/puffin_egui/src/lib.rs b/puffin_egui/src/lib.rs
index 55ded08a..c1a86daa 100644
--- a/puffin_egui/src/lib.rs
+++ b/puffin_egui/src/lib.rs
@@ -321,6 +321,14 @@ fn latest_frames() -> Frames {
 }
 
 impl ProfilerUi {
+    pub fn reset(&mut self) {
+        let options = self.options;
+        *self = Self {
+            options,
+            ..Default::default()
+        };
+    }
+
     /// Show an [`egui::Window`] with the profiler contents.
     ///
     /// If you want to control the window yourself, use [`Self::ui`] instead.
diff --git a/puffin_viewer/CHANGELOG.md b/puffin_viewer/CHANGELOG.md
index def0a7eb..459233ae 100644
--- a/puffin_viewer/CHANGELOG.md
+++ b/puffin_viewer/CHANGELOG.md
@@ -3,6 +3,10 @@
 All notable changes to `puffin_viewer` will be documented in this file.
 
 
+## Unreleased
+* Load and save recordings as `.puffin` files.
+
+
 ## 0.4.0
 * Add support for compressed TCP stream (up to 75% bandwidth reduction).
 
diff --git a/puffin_viewer/Cargo.toml b/puffin_viewer/Cargo.toml
index 73f5a6e9..400a6373 100644
--- a/puffin_viewer/Cargo.toml
+++ b/puffin_viewer/Cargo.toml
@@ -20,4 +20,5 @@ puffin_http = { version = "0.4.0", path = "../puffin_http" }
 argh = "0.1"
 eframe = { version = "0.13", features = ["persistence"] }
 log = "0.4"
+rfd = "0.4.3"
 simple_logger = "1.11"
diff --git a/puffin_viewer/src/main.rs b/puffin_viewer/src/main.rs
index cc931a86..a26f21af 100644
--- a/puffin_viewer/src/main.rs
+++ b/puffin_viewer/src/main.rs
@@ -71,14 +71,22 @@
 // END - Embark standard lints v0.4
 // crate-specific exceptions:
 #![deny(missing_crate_level_docs)]
+#![allow(clippy::exit)]
 
 use eframe::{egui, epi};
+use puffin::GlobalProfiler;
+use std::path::PathBuf;
 
-/// puffin remote profile viewer.
+/// puffin profile viewer.
 ///
-/// Connect to a puffin server and show its profile data.
+/// Can either connect remotely to a puffin server
+/// or open a .puffin recording file.
 #[derive(argh::FromArgs)]
 struct Arguments {
+    /// what .puffin file to open, e.g. `my/recording.puffin`.
+    #[argh(option)]
+    file: Option<String>,
+
     /// which server to connect to, e.g. `127.0.0.1:8585`.
     #[argh(option, default = "default_url()")]
     url: String,
@@ -97,15 +105,163 @@ fn main() {
         .ok();
 
     puffin::set_scopes_on(true); // quiet warning in `puffin_egui`.
-    let client = puffin_http::Client::new(opt.url);
 
-    let app = PuffinViewer { client };
+    let app = if let Some(file) = opt.file {
+        let path = PathBuf::from(file);
+        match GlobalProfiler::load_path(&path) {
+            Ok(profiler) => {
+                *GlobalProfiler::lock() = profiler;
+                PuffinViewer {
+                    profiler_ui: Default::default(),
+                    source: Source::FilePath(path),
+                    error: None,
+                }
+            }
+            Err(err) => {
+                log::error!("Failed to load {}: {}", path.display(), err);
+                std::process::exit(1);
+            }
+        }
+    } else {
+        PuffinViewer {
+            profiler_ui: Default::default(),
+            source: Source::Http(puffin_http::Client::new(opt.url)),
+            error: None,
+        }
+    };
+
     let options = Default::default();
     eframe::run_native(Box::new(app), options);
 }
 
+pub enum Source {
+    Http(puffin_http::Client),
+    FilePath(PathBuf),
+    FileName(String),
+}
+
+impl Source {
+    fn ui(&self, ui: &mut egui::Ui) {
+        match self {
+            Source::Http(http_client) => {
+                if http_client.connected() {
+                    ui.label(format!("Connected to {}", http_client.addr()));
+                } else {
+                    ui.label(format!("Connecting to {}…", http_client.addr()));
+                }
+            }
+            Source::FilePath(path) => {
+                ui.label(format!("Viewing {}", path.display()));
+            }
+            Source::FileName(name) => {
+                ui.label(format!("Viewing {}", name));
+            }
+        }
+    }
+}
+
 pub struct PuffinViewer {
-    client: puffin_http::Client,
+    profiler_ui: puffin_egui::ProfilerUi,
+    source: Source,
+    error: Option<String>,
+}
+
+impl PuffinViewer {
+    fn open_puffin_path(&mut self, path: std::path::PathBuf) {
+        match GlobalProfiler::load_path(&path) {
+            Ok(profiler) => {
+                *GlobalProfiler::lock() = profiler;
+                self.profiler_ui.reset();
+                self.source = Source::FilePath(path);
+                self.error = None;
+            }
+            Err(err) => {
+                self.error = Some(format!("Failed to load {}: {}", path.display(), err));
+            }
+        }
+    }
+
+    fn open_puffin_bytes(&mut self, name: String, bytes: &[u8]) {
+        let mut reader = std::io::Cursor::new(bytes);
+        match GlobalProfiler::load_reader(&mut reader) {
+            Ok(profiler) => {
+                *GlobalProfiler::lock() = profiler;
+                self.profiler_ui.reset();
+                self.source = Source::FileName(name);
+                self.error = None;
+            }
+            Err(err) => {
+                self.error = Some(format!("Failed to load file {:?}: {}", name, err));
+            }
+        }
+    }
+
+    fn ui_menu_bar(&mut self, ctx: &egui::CtxRef, frame: &mut epi::Frame<'_>) {
+        egui::TopBottomPanel::top("menu_bar").show(ctx, |ui| {
+            egui::menu::bar(ui, |ui| {
+                egui::menu::menu(ui, "File", |ui| {
+                    if ui.button("Open…").clicked() {
+                        if let Some(path) = rfd::FileDialog::new()
+                            .add_filter("puffin", &["puffin"])
+                            .pick_file()
+                        {
+                            self.open_puffin_path(path);
+                        }
+                    }
+
+                    if ui.button("Save as…").clicked() {
+                        if let Some(path) = rfd::FileDialog::new()
+                            .add_filter("puffin", &["puffin"])
+                            .save_file()
+                        {
+                            if let Err(error) = GlobalProfiler::lock().save_to_path(&path) {
+                                self.error = Some(format!("Failed to export: {}", error));
+                            } else {
+                                self.error = None;
+                            }
+                        }
+                    }
+
+                    if ui.button("Quit").clicked() {
+                        frame.quit();
+                    }
+                });
+            });
+        });
+    }
+
+    fn ui_file_drag_and_drop(&mut self, ctx: &egui::CtxRef) {
+        use egui::*;
+
+        // Preview hovering files:
+        if !ctx.input().raw.hovered_files.is_empty() {
+            let painter =
+                ctx.layer_painter(LayerId::new(Order::Foreground, Id::new("file_drop_target")));
+
+            let screen_rect = ctx.input().screen_rect();
+            painter.rect_filled(screen_rect, 0.0, Color32::from_black_alpha(192));
+            painter.text(
+                screen_rect.center(),
+                Align2::CENTER_CENTER,
+                "Drop to open .puffin file",
+                TextStyle::Heading,
+                Color32::WHITE,
+            );
+        }
+
+        // Collect dropped files:
+        if !ctx.input().raw.dropped_files.is_empty() {
+            for file in &ctx.input().raw.dropped_files {
+                if let Some(path) = &file.path {
+                    self.open_puffin_path(path.clone());
+                    break;
+                } else if let Some(bytes) = &file.bytes {
+                    self.open_puffin_bytes(file.name.clone(), bytes);
+                    break;
+                }
+            }
+        }
+    }
 }
 
 impl epi::App for PuffinViewer {
@@ -113,15 +269,22 @@ impl epi::App for PuffinViewer {
         "puffin http client viewer"
     }
 
-    fn update(&mut self, ctx: &egui::CtxRef, _frame: &mut epi::Frame<'_>) {
-        egui::TopBottomPanel::top("top_panel").show(ctx, |ui| {
-            if self.client.connected() {
-                ui.label(format!("Connected to {}", self.client.addr()));
-            } else {
-                ui.label(format!("Connecting to {}…", self.client.addr()));
+    fn update(&mut self, ctx: &egui::CtxRef, frame: &mut epi::Frame<'_>) {
+        self.ui_menu_bar(ctx, frame);
+
+        egui::TopBottomPanel::bottom("info_bar").show(ctx, |ui| {
+            if let Some(error) = &self.error {
+                ui.colored_label(egui::Color32::RED, error);
+                ui.separator();
             }
+
+            self.source.ui(ui);
+        });
+
+        egui::CentralPanel::default().show(ctx, |ui| {
+            self.profiler_ui.ui(ui);
         });
 
-        egui::CentralPanel::default().show(ctx, puffin_egui::profiler_ui);
+        self.ui_file_drag_and_drop(ctx);
     }
 }