diff --git a/pkgs/os-specific/darwin/apple-source-releases/IOKitTools/meson.build.in b/pkgs/os-specific/darwin/apple-source-releases/IOKitTools/meson.build.in
new file mode 100644
index 000000000000..b736b604a4b9
--- /dev/null
+++ b/pkgs/os-specific/darwin/apple-source-releases/IOKitTools/meson.build.in
@@ -0,0 +1,75 @@
+# Build settings based on the upstream Xcode project.
+# See: https://github.com/apple-oss-distributions/IOKitTools/blob/main/IOKitTools.xcodeproj/project.pbxproj
+
+# Project settings
+project('IOKitTools', 'c', version : '@version@')
+
+
+# Dependencies
+cc = meson.get_compiler('c')
+
+ncurses = dependency('ncurses')
+
+core_foundation = dependency('appleframeworks', modules : 'CoreFoundation')
+iokit = dependency('appleframeworks', modules : 'IOKit')
+core_symbolication = dependency('appleframeworks', modules : 'CoreSymbolication')
+perfdata = dependency('appleframeworks', modules : 'perfdata')
+
+
+# Compatibility tests
+iomainport_test = '''
+#include <IOKit/IOKit.h>
+int main(int argc, char* argv[]) {
+    const mach_port_t port = kIOMasterPortDefault;
+}
+'''
+
+if not cc.compiles(iomainport_test, name : 'supports IOMainPort', dependencies : [ iokit ])
+    add_project_arguments(
+        '-DIOMainPort=IOMasterPort',
+        '-DkIOMainPortDefault=kIOMasterPortDefault',
+        language : 'c'
+    )
+    message('Redefining IOMainPort to IOMasterPort.')
+endif
+
+kiouserclasseskey_test = '''
+#include <IOKit/IOKit.h>
+int main(int argc, char* argv[]) {
+    const char* key = kIOUserClassesKey;
+}
+'''
+
+if not cc.compiles(iomainport_test, name : 'supports IOUserClasses', dependencies : [ iokit ])
+    add_project_arguments(
+        '-DkIOUserClassesKey="IOUserClasses"',
+        language : 'c'
+    )
+    message('Manually defining IOUserClasses constants.')
+endif
+
+
+# Binaries
+executable(
+    'ioalloccount',
+    dependencies : [ core_foundation, iokit ],
+    install : true,
+    sources : [ 'ioalloccount.tproj/ioalloccount.c' ],
+)
+install_man('ioalloccount.tproj/ioalloccount.8')
+
+executable(
+    'ioclasscount',
+    dependencies : [ core_foundation, core_symbolication, iokit, perfdata ],
+    install : true,
+    sources : [ 'ioclasscount.tproj/ioclasscount.c' ],
+)
+install_man('ioclasscount.tproj/ioclasscount.8')
+
+executable(
+    'ioreg',
+    dependencies : [ core_foundation, iokit, ncurses ],
+    install : true,
+    sources : [ 'ioreg.tproj/ioreg.c' ],
+)
+install_man('ioreg.tproj/ioreg.8')
diff --git a/pkgs/os-specific/darwin/apple-source-releases/IOKitTools/package.nix b/pkgs/os-specific/darwin/apple-source-releases/IOKitTools/package.nix
new file mode 100644
index 000000000000..21426257fe35
--- /dev/null
+++ b/pkgs/os-specific/darwin/apple-source-releases/IOKitTools/package.nix
@@ -0,0 +1,64 @@
+{
+  lib,
+  apple-sdk_11,
+  darwinMinVersionHook,
+  mkAppleDerivation,
+  ncurses,
+  pkg-config,
+  stdenvNoCC,
+}:
+
+let
+  iokitUser = apple-sdk_11.sourceRelease "IOKitUser";
+  xnu = apple-sdk_11.sourceRelease "xnu";
+
+  privateHeaders = stdenvNoCC.mkDerivation {
+    name = "IOKitTools-deps-private-headers";
+
+    buildCommand = ''
+      install -D -t "$out/include/IOKit/" \
+        '${iokitUser}/IOKitLibPrivate.h' \
+        '${xnu}/iokit/IOKit/IOKitKeysPrivate.h'
+
+      install -D -t "$out/include/Kernel/libkern" \
+          '${xnu}/libkern/libkern/OSKextLibPrivate.h'
+
+      mkdir -p "$out/include/perfdata"
+      cat <<EOF > "$out/include/perfdata/perfdata.h"
+      #pragma once
+      typedef void* pdunit_t;
+
+      #define PDUNIT_CUSTOM(x) ((void*)("#\"" x "\""))
+      extern const pdunit_t pdunit_B;
+
+      typedef void* pdwriter_t;
+      extern pdwriter_t pdwriter_open(const char*, const char*, size_t, size_t);
+      extern void pdwriter_close(pdwriter_t);
+      extern void pdwriter_new_value(pdwriter_t, const char*, pdunit_t, double);
+      extern void pdwriter_record_variable_str(pdwriter_t, char*, const char*);
+      EOF
+    '';
+  };
+in
+mkAppleDerivation {
+  releaseName = "IOKitTools";
+
+  outputs = [
+    "out"
+    "man"
+  ];
+
+  xcodeHash = "sha256-qFG4sB8NXNPTSvYTEX2E1ReOX+NcMBHrS2NuNBLO7zw=";
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [
+    apple-sdk_11
+    apple-sdk_11.privateFrameworksHook
+    (darwinMinVersionHook "11.0")
+    ncurses
+  ];
+
+  env.NIX_CFLAGS_COMPILE = "-I${privateHeaders}/include";
+
+  meta.description = "IOKit tools";
+}
diff --git a/pkgs/os-specific/darwin/apple-source-releases/versions.json b/pkgs/os-specific/darwin/apple-source-releases/versions.json
index 43a899ff1b1a..55eb835b0f95 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/versions.json
+++ b/pkgs/os-specific/darwin/apple-source-releases/versions.json
@@ -11,6 +11,10 @@
     "hash": "sha256-CvpMLFNCEQ05t3nkzDyA9nsm3cmRgXG/QxbyiLpSpIs=",
     "version": "74221"
   },
+  "IOKitTools": {
+    "hash": "sha256-Oknsvzn4nv77WU7f0WPS446iwR2BM2q4iw46r/qctAE=",
+    "version": "125"
+  },
   "PowerManagement": {
     "hash": "sha256-bYGtYnBOcE5W03AZzfVTJXPZ6GgryGAMt/LgLPxFkVk=",
     "version": "572.50.1"