---
title: ToolRouter — Use Case
description: Step-by-step guide for a real-world ToolRouter use case with agent-specific instructions.
url: https://toolrouter.com/tools/generate-image/use-cases/generate-email-headers
---
# Generate Email Headers

Email header images are the first visual element recipients see when they open your message. A strong header image sets the tone, reinforces your brand, and significantly impacts whether readers continue scrolling. Yet most email marketers reuse the same template or skip header images entirely because creating them is too slow.

ToolRouter's text_to_image skill generates email headers optimized for inbox rendering. Specify your email's topic, campaign theme, and brand colors to get a header that looks professional across Gmail, Outlook, and Apple Mail. The consistent 600px width standard means you can describe what you need and get something immediately usable.

This is perfect for marketing teams sending weekly newsletters, e-commerce brands with frequent promotional emails, and SaaS companies personalizing drip campaign headers for different user segments.

**Tool:** [Generate Image](https://toolrouter.com/tools/generate-image)
**Skills:** text_to_image

## Agent Guides

- [How to Generate Email Headers with Claude](https://toolrouter.com/tools/generate-image/use-cases/generate-email-headers/claude): Guide for Claude
- [How to Generate Email Headers with ChatGPT](https://toolrouter.com/tools/generate-image/use-cases/generate-email-headers/chatgpt): Guide for ChatGPT
- [How to Generate Email Headers with Copilot](https://toolrouter.com/tools/generate-image/use-cases/generate-email-headers/copilot): Guide for Copilot
- [How to Generate Email Headers with OpenClaw](https://toolrouter.com/tools/generate-image/use-cases/generate-email-headers/openclaw): Guide for OpenClaw
