diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..e5dce99
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,16 @@
+[tox]
+envlist =
+    format
+
+[testenv:format]
+deps =
+    isort
+    black
+skip_install = True
+commands =
+    isort bdfr tests
+    black bdfr tests --line-length 120
+
+[isort]
+profile = black
+multi_line_output = 3
\ No newline at end of file