diff --git a/src/lib/cs2json.spec.ts b/src/lib/cs2json.spec.ts
index 8c9dbdd4..0f202992 100644
--- a/src/lib/cs2json.spec.ts
+++ b/src/lib/cs2json.spec.ts
@@ -29,4 +29,9 @@ describe("csv2json", () => {
     const csv = "one line file";
     expect(() => csv2json(csv)).toThrow(/No newlines/);
   });
+
+  it("handles nulls", () => {
+    const obj = csv2json("val\nnull")[0];
+    expect(obj.val).toBe(null);
+  });
 });
diff --git a/src/lib/csv2json.ts b/src/lib/csv2json.ts
index 768ca4fb..afbac996 100644
--- a/src/lib/csv2json.ts
+++ b/src/lib/csv2json.ts
@@ -15,6 +15,7 @@ function camelize(str: string): string {
 function convert(input: any) {
   if (input.match(/\d{4,4}-\d{2,2}-\d{2,2}/)) return new Date(input);
   if (input.match(/^[0-9\.]+$/)) return parseFloat(input);
+  if (input === "null") return null;
   return input;
 }