diff --git a/pkgs/applications/misc/notesnook/default.nix b/pkgs/applications/misc/notesnook/default.nix
new file mode 100644
index 000000000000..55bd926fb7fa
--- /dev/null
+++ b/pkgs/applications/misc/notesnook/default.nix
@@ -0,0 +1,76 @@
+{ lib, stdenv, appimageTools, fetchurl, undmg }:
+
+let
+  pname = "notesnook";
+  version = "2.5.7";
+
+  inherit (stdenv.hostPlatform) system;
+  throwSystem = throw "Unsupported system: ${system}";
+
+  suffix = {
+    x86_64-linux = "linux_x86_64.AppImage";
+    x86_64-darwin = "mac_x64.dmg";
+    aarch64-darwin = "mac_arm64.dmg";
+  }.${system} or throwSystem;
+
+  src = fetchurl {
+    url = "https://github.com/streetwriters/notesnook/releases/download/v${version}/notesnook_${suffix}";
+    hash = {
+      x86_64-linux = "sha256-M/59pjhuKF/MOMpT9/qrlThHO0V8e49cfiaWMkEWHNg=";
+      x86_64-darwin = "sha256-cluIizmweIMU6RIFxoEQ3DYChRVEuVLxrPjwfFfeq1w=";
+      aarch64-darwin = "sha256-cbBnKrb8poyDL1D+32UrOl3RXt8Msncw440qra9+Gs0=";
+    }.${system} or throwSystem;
+  };
+
+  appimageContents = appimageTools.extractType2 {
+    inherit pname version src;
+  };
+
+  meta = with lib; {
+    description = "A fully open source & end-to-end encrypted note taking alternative to Evernote.";
+    longDescription = ''
+      Notesnook is a free (as in speech) & open source note taking app
+      focused on user privacy & ease of use. To ensure zero knowledge
+      principles, Notesnook encrypts everything on your device using
+      XChaCha20-Poly1305 & Argon2.
+    '';
+    homepage = "https://notesnook.com";
+    license = licenses.gpl3Only;
+    maintainers = with maintainers; [ j0lol ];
+    platforms = [ "x86_64-linux" "x86_64-darwin" "aarch64-darwin" ];
+  };
+
+  linux = appimageTools.wrapType2 rec {
+    inherit pname version src meta;
+
+    profile = ''
+      export LC_ALL=C.UTF-8
+    '';
+
+    multiPkgs = null; # no 32bit needed
+    extraPkgs = appimageTools.defaultFhsEnvArgs.multiPkgs;
+    extraInstallCommands = ''
+      mv $out/bin/{${pname}-${version},${pname}}
+      install -Dm444 ${appimageContents}/notesnook.desktop -t $out/share/applications
+      install -Dm444 ${appimageContents}/notesnook.png -t $out/share/pixmaps
+      substituteInPlace $out/share/applications/notesnook.desktop \
+        --replace 'Exec=AppRun --no-sandbox %U' 'Exec=${pname}'
+    '';
+  };
+
+  darwin = stdenv.mkDerivation {
+    inherit pname version src meta;
+
+    nativeBuildInputs = [ undmg ];
+
+    sourceRoot = "Notesnook.app";
+
+    installPhase = ''
+      mkdir -p $out/Applications/Notesnook.app
+      cp -R . $out/Applications/Notesnook.app
+    '';
+  };
+in
+if stdenv.isDarwin
+then darwin
+else linux
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 6bb6ca1a323a..41868f12afb8 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -9874,6 +9874,8 @@ with pkgs;
 
   node2nix = nodePackages.node2nix;
 
+  notesnook = callPackage ../applications/misc/notesnook { };
+
   openipmi = callPackage ../tools/system/openipmi { };
 
   ox = callPackage ../applications/editors/ox { };