diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5df0af84..7ab3a277 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -605,7 +605,7 @@ endif ()
 
 
 ###############################################################################
-foreach (tool cpuid poisson macro scratch)
+foreach (tool cpuid log poisson macro scratch)
     add_executable (util_${tool} tools/${tool}.cpp)
     set_target_properties (util_${tool} PROPERTIES OUTPUT_NAME ${tool})
     target_link_libraries (util_${tool} cruft)
diff --git a/tools/log.cpp b/tools/log.cpp
new file mode 100644
index 00000000..ec9760b0
--- /dev/null
+++ b/tools/log.cpp
@@ -0,0 +1,42 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * Copyright 2019, Danny Robson <danny@nerdcruft.net>
+ */
+
+#include <cruft/util/log.hpp>
+
+#include <iostream>
+#include <cstdlib>
+
+
+enum {
+    ARG_SELF,
+    ARG_LEVEL,
+    ARG_FORMAT,
+
+    MIN_ARGS,
+};
+
+
+int main (int const argc, char const **argv)
+{
+    if (argc < MIN_ARGS) {
+        std::cerr << "usage: " << argv[ARG_SELF] << " <level> <format> [arg]...\n";
+        return EXIT_FAILURE;
+    }
+
+    auto const level  = cruft::log::to_level (argv[ARG_LEVEL]);
+    auto const format = argv[ARG_FORMAT];
+
+    auto const count  = argc - 3;
+    switch (count) {
+    case 0: cruft::log::write (level, format); break;
+    case 1: cruft::log::write (level, format, argv[MIN_ARGS + 0]); break;
+    case 2: cruft::log::write (level, format, argv[MIN_ARGS + 0], argv[MIN_ARGS + 1]); break;
+    }
+
+    return EXIT_SUCCESS;
+}
\ No newline at end of file