diff --git a/pkgs/development/tools/asmfmt/default.nix b/pkgs/development/tools/asmfmt/default.nix
new file mode 100644
index 00000000000..d2cb7e807b5
--- /dev/null
+++ b/pkgs/development/tools/asmfmt/default.nix
@@ -0,0 +1,37 @@
+{ buildGoPackage
+, lib
+, fetchFromGitHub
+, fetchpatch
+}:
+
+buildGoPackage rec {
+  name = "asmfmt-${version}";
+  version = "1.1";
+
+  goPackagePath = "github.com/klauspost/asmfmt";
+
+  src = fetchFromGitHub {
+    owner = "klauspost";
+    repo = "asmfmt";
+    rev = "v${version}";
+    sha256 = "08mybfizcvck460axakycz9ndzcgwqilp5mmgm4bl8hfrn36mskw";
+  };
+
+  patches = [
+    (fetchpatch {
+      excludes = ["README.md"];
+      url = "https://github.com/klauspost/asmfmt/commit/39a37c8aed8095e0fdfb07f78fc8acbd465d9627.patch";
+      sha256 = "18bc77l87mf0yvqc3adlakxz6wflyqfsc2wrmh9q0nlqghlmnw5k";
+    })
+  ];
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "Go Assembler Formatter";
+    homepage = https://github.com/klauspost/asmfmt;
+    license = licenses.mit;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}
diff --git a/pkgs/development/tools/asmfmt/deps.nix b/pkgs/development/tools/asmfmt/deps.nix
new file mode 100644
index 00000000000..0288fc206d4
--- /dev/null
+++ b/pkgs/development/tools/asmfmt/deps.nix
@@ -0,0 +1,20 @@
+[
+  {
+    goPackagePath = "golang.org/x/tools";
+    fetch = {
+      type = "git";
+      url = "https://go.googlesource.com/tools";
+      rev = "3a10b9bf0a52df7e992a8c3eb712a86d3c896c75";
+      sha256 = "19f3dijcc54jnd7458jab2dgpd0gzccmv2qympd9wi8cc8jpnhws";
+    };
+  }
+  {
+    goPackagePath = "sourcegraph.com/sqs/goreturns";
+    fetch = {
+      type = "git";
+      url = "https://github.com/sqs/goreturns";
+      rev = "538ac601451833c7c4449f8431d65d53c1c60e41";
+      sha256 = "0gcplch8zmcgwl6xvcffxg50g3xnf60n7dlqxgn51179qcjr354p";
+    };
+  }
+]
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 62cef2d5068..9ee9fc5ccd2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -801,6 +801,8 @@ with pkgs;
   };
   aria = aria2;
 
+  asmfmt = callPackage ../development/tools/asmfmt { };
+
   aspcud = callPackage ../tools/misc/aspcud { };
 
   at = callPackage ../tools/system/at { };