diff --git a/pkgs/applications/misc/heimer/default.nix b/pkgs/applications/misc/heimer/default.nix
new file mode 100644
index 00000000000..39ae0e04670
--- /dev/null
+++ b/pkgs/applications/misc/heimer/default.nix
@@ -0,0 +1,23 @@
+{ mkDerivation, lib, fetchFromGitHub, cmake, qttools, qtbase }:
+
+mkDerivation rec {
+  pname = "heimer";
+  version = "1.12.0";
+
+  src = fetchFromGitHub {
+    owner = "juzzlin";
+    repo = pname;
+    rev = version;
+    sha256 = "1gw4w6cvr3vb4zdb1kq8gwmadh2lb0jd0bd2hc7cw2d5kdbjaln7";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ qttools qtbase ];
+
+  meta = with lib; {
+    description = "Simple cross-platform mind map and note-taking tool written in Qt";
+    homepage = "https://github.com/juzzlin/Heimer";
+    license = licenses.gpl3;
+    maintainers  = with maintainers; [ dtzWill ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3eadd3b385a..449bb4a8715 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19308,6 +19308,8 @@ in
 
   hashit = callPackage ../tools/misc/hashit { };
 
+  heimer = libsForQt5.callPackage ../applications/misc/heimer { };
+
   hello = callPackage ../applications/misc/hello { };
   hello-unfree = callPackage ../applications/misc/hello-unfree { };