diff --git a/src/clone-cat.cc b/src/clone-cat.cc
new file mode 100644
index 0000000..a8a48e8
--- /dev/null
+++ b/src/clone-cat.cc
@@ -0,0 +1,35 @@
+#include "crucible/error.h"
+#include "crucible/fd.h"
+#include "crucible/fs.h"
+
+using namespace crucible;
+using namespace std;
+
+int
+main(int argc, char **argv)
+{
+	if (argc <= 2) {
+		cerr << "Usage: " << argv[0] << " FILE1 FILE2 [...FILEn] > OUTFILE" << endl;
+		cerr << "Catenates FILE1..FILEN using copy_file_range" << endl;
+		return EXIT_FAILURE;
+	}
+
+	off_t out_pos = 0;
+
+	while (*++argv) {
+		string filename(*argv);
+
+		Fd input_fd = open_or_die(filename, O_RDONLY);
+
+		Stat st(input_fd);
+
+		off_t len = st.st_size;
+
+		cerr << "clone_range(" << filename << ", 0, " << len << ", STDOUT_FILENO, " << out_pos << ")" << flush;
+		btrfs_clone_range(input_fd, 0, len, STDOUT_FILENO, out_pos);
+		out_pos += len;
+		cerr << endl;
+	}
+
+	return EXIT_SUCCESS;
+}
diff --git a/src/clone-split.cc b/src/clone-split.cc
new file mode 100644
index 0000000..f7e31e5
--- /dev/null
+++ b/src/clone-split.cc
@@ -0,0 +1,35 @@
+#include "crucible/error.h"
+#include "crucible/fd.h"
+#include "crucible/fs.h"
+
+using namespace crucible;
+using namespace std;
+
+int
+main(int argc, char **argv)
+{
+	if (argc != 3) {
+		cerr << "Usage: " << argv[0] << " FILE SIZE" << endl;
+		cerr << "Splits FILE into SIZE-byte pieces using copy_file_range" << endl;
+	}
+
+	string filename(argv[1]);
+	off_t out_size(stoull(argv[2], 0, 0));
+
+	Fd input_fd = open_or_die(filename, O_RDONLY);
+
+	Stat st(input_fd);
+
+	for (off_t pos = 0; pos < st.st_size; pos += out_size) {
+		char pos_name[64];
+		off_t len = min(st.st_size - pos, out_size);
+		snprintf(pos_name, sizeof(pos_name), "0x%016llx", static_cast<long long>(pos));
+		string out_name = filename + '.' + pos_name;
+		cout << out_name << flush;
+		Fd output_fd = open_or_die(out_name, O_WRONLY | O_EXCL | O_CREAT);
+		btrfs_clone_range(input_fd, pos, len, output_fd, 0);
+		cout << endl;
+	}
+
+	return 0;
+}