---
layout: default
title: string_converter
parent: Processors
grand_parent: Configuring Data Prepper
nav_order: 45
---

# string_converter

## Overview

Converts string to uppercase or lowercase. Mostly useful as an example if you want to develop your own processor.

Option | Required | Type | Description
:--- | :--- | :--- | :---
upper_case | No | Boolean | Whether to convert to uppercase (`true`) or lowercase (`false`).

<!---## Configuration

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## Metrics

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