diff --git a/pkgs/development/tools/treefmt/default.nix b/pkgs/development/tools/treefmt/default.nix
new file mode 100644
index 000000000000..c90492c6aeca
--- /dev/null
+++ b/pkgs/development/tools/treefmt/default.nix
@@ -0,0 +1,21 @@
+{ lib, rustPlatform, fetchFromGitHub }:
+rustPlatform.buildRustPackage rec {
+  pname = "treefmt";
+  version = "0.1.1";
+
+  src = fetchFromGitHub {
+    owner = "numtide";
+    repo = "treefmt";
+    rev = "v${version}";
+    sha256 = "0a4yikkqppawii1q0kzsxwfp1aid688wa0lixjwfsl279lr69css";
+  };
+
+  cargoSha256 = "08k60gd23yanfraxpbw9hi7jbqgsxz9mv1ci6q9piis5742zlj9s";
+
+  meta = {
+    description = "one CLI to format the code tree";
+    homepage = "https://github.com/numtide/treefmt";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ zimbatm ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index da0b9580c1b0..5e915c24aeb9 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -31143,6 +31143,8 @@ in
 
   fac-build = callPackage ../development/tools/build-managers/fac {};
 
+  treefmt = callPackage ../development/tools/treefmt { };
+
   bottom = callPackage ../tools/system/bottom {};
 
   cagebreak = callPackage ../applications/window-managers/cagebreak/default.nix {