diff --git a/Cargo.toml b/Cargo.toml
index 7afc5e8..0ccbd04 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,3 +19,4 @@ exclude = [
 
 [features]
 suite = [] # test suite
+suite_bench = [] # bench test suite
diff --git a/Makefile b/Makefile
index bcfe812..2636af6 100644
--- a/Makefile
+++ b/Makefile
@@ -9,8 +9,19 @@ suite:
 	(cd tests/suite && make)
 	cargo test --features suite
 
+.PHONY: suite_bench
+suite_bench:
+	git submodule update --init modules/djot.js
+	for f in $$(find modules/djot.js/bench -name '*.dj' | xargs basename -a); do \
+		ln -fs ../../modules/djot.js/bench/$$f tests/bench/$$f; \
+	done
+	(cd tests/bench && make)
+	cargo test --features suite_bench
+
 clean:
 	cargo clean
 	git submodule deinit -f --all
 	rm -f tests/suite/*.test
 	(cd tests/suite && make clean)
+	rm -f tests/bench/*.dj
+	(cd tests/bench && make clean)
diff --git a/tests/bench/Makefile b/tests/bench/Makefile
new file mode 100644
index 0000000..f99adad
--- /dev/null
+++ b/tests/bench/Makefile
@@ -0,0 +1,39 @@
+.POSIX:
+
+TEST_DJ=$(shell find . -name '*.dj' | sort)
+TEST=${TEST_DJ:.dj=}
+
+DJOT_JS=../../modules/djot.js
+DJOT_JS_SRC=$(shell find ${DJOT_JS}/src -name '.ts')
+
+mod.rs: ${TEST_DJ} html
+	echo "use crate::suite_test;" > $@
+	for name in ${TEST}; do \
+		name_snake=$$(basename -a $$name | sed 's/-/_/g'); \
+		echo "#[test]" >> $@; \
+		echo "fn test_$$name_snake() {" >> $@; \
+		printf '    let src = r###"' >> $@; \
+		cat $$name.dj >> $@; \
+		echo '"###;' >> $@; \
+		printf '    let expected = r###"' >> $@; \
+		cat $$name.html >> $@; \
+		echo '"###;' >> $@; \
+		echo "    suite_test!(src, expected);" >> $@; \
+		echo "}" >> $@; \
+	done
+
+html: djot-js ${TEST_DJ}
+	echo ${TEST}
+	for name in ${TEST}; do cat $$name.dj | ./djot-js > $$name.html; done
+	touch $@
+
+djot-js: ${DJOT_JS_SRC}
+	(cd "${DJOT_JS}" && npm install && npm run build)
+	echo "#!/bin/sh" > $@
+	echo 'node ${DJOT_JS}/lib/cli.js "$$@"' >> $@
+	chmod +x $@
+
+clean:
+	rm -f *.rs *.html
+	rm -f html
+	rm -f djot-js
diff --git a/tests/lib.rs b/tests/lib.rs
index 3f2b71f..5b5f5fc 100644
--- a/tests/lib.rs
+++ b/tests/lib.rs
@@ -1,7 +1,9 @@
+#[cfg(feature = "suite_bench")]
+mod bench;
 #[cfg(feature = "suite")]
 mod suite;
 
-#[cfg(feature = "suite")]
+#[cfg(any(feature = "suite", feature = "suite_bench"))]
 #[macro_export]
 macro_rules! suite_test {
     ($src:expr, $expected:expr) => {