diff --git a/extensions/openpower-pels/user_data_json.hpp b/extensions/openpower-pels/user_data_json.hpp
new file mode 100644
index 0000000..64fac79
--- /dev/null
+++ b/extensions/openpower-pels/user_data_json.hpp
@@ -0,0 +1,25 @@
+#pragma once
+
+#include <optional>
+#include <string>
+#include <vector>
+
+namespace openpower::pels::user_data
+{
+
+/**
+ * @brief  Returns the UserData contents as a formatted JSON string.
+ *
+ * @param[in] componentID - The comp ID from the UserData section header
+ * @param[in] subType - The subtype from the UserData section header
+ * @param[in] version - The version from the UserData section header
+ * @param[in] data - The section data
+ *
+ * @return std::optional<std::string> - The JSON string if it could be created,
+ *                                      else std::nullopt.
+ */
+std::optional<std::string> getJSON(uint16_t componentID, uint8_t subType,
+                                   uint8_t version,
+                                   const std::vector<uint8_t>& data);
+
+} // namespace openpower::pels::user_data