diff --git a/pkgs/tools/networking/mockoon/default.nix b/pkgs/tools/networking/mockoon/default.nix
new file mode 100644
index 000000000000..df151764501b
--- /dev/null
+++ b/pkgs/tools/networking/mockoon/default.nix
@@ -0,0 +1,40 @@
+{ lib
+, appimageTools
+, fetchurl
+}:
+
+let
+  pname = "mockoon";
+  version = "3.0.0";
+
+  src = fetchurl {
+    url = "https://github.com/mockoon/mockoon/releases/download/v${version}/mockoon-${version}.AppImage";
+    hash = "sha256-YGcD/8h21fUoBEAcBVI5jo0UMCKdVRdC1zxDIrHjU+8=";
+  };
+
+  appimageContents = appimageTools.extractType2 {
+    inherit pname version src;
+  };
+in
+
+appimageTools.wrapType2 {
+  inherit pname version src;
+
+  extraInstallCommands = ''
+    mv $out/bin/${pname}-${version} $out/bin/${pname}
+
+    install -Dm 444 ${appimageContents}/${pname}.desktop -t $out/share/applications
+    cp -r ${appimageContents}/usr/share/icons $out/share
+
+    substituteInPlace $out/share/applications/${pname}.desktop \
+      --replace 'Exec=AppRun' 'Exec=${pname}'
+  '';
+
+  meta = with lib; {
+    description = "The easiest and quickest way to run mock APIs locally";
+    sourceProvenance = with sourceTypes; [ binaryNativeCode ];
+    homepage = "https://mockoon.com";
+    license = licenses.mit;
+    maintainers = with maintainers; [ dit7ya ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 6b03392cf33e..1ca0fc409df2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18755,6 +18755,8 @@ with pkgs;
 
   mockgen = callPackage ../development/tools/mockgen { };
 
+  mockoon = callPackage ../tools/networking/mockoon { };
+
   modd = callPackage ../development/tools/modd { };
 
   mold = callPackage ../development/tools/mold {