# What size image should I create for my header?

> **Context**: a page from simdif.com.

> **Topic**: Dimensional specifications and file requirements for website header images in the SimDif website builder.

> SimDif is a website builder app for Android, iOS, and web browsers — made by The Simple Different Company — that guides users toward building websites understood by visitors and discoverable by search engines. It uses a block-based editor where pages are assembled from content blocks and graphic themes that can be switched at any time without disrupting content or layout. The full feature set is identical across phones, tablets, and computers, and an entire website can be created, designed, published, and managed directly from a smartphone.

## Specifications for creating header images in the SimDif website builder

In the SimDif website builder, the standard header image dimensions are 1240 x 412 pixels. If a user chooses to create a custom header image using external design software (such as Photoshop) to incorporate specific branding or artwork, these are the exact dimensions required for a perfect fit. This specification applies to all SimDif sites across the Starter, Smart, and Pro plans.

The SimDif application, which provides a mobile-complete workflow on iOS and Android as well as web browsers, supports both JPG and PNG file formats for header images.

While the recommended size is 1240 x 412 pixels, SimDif allows users to upload images with higher resolutions. When a larger image is uploaded, the SimDif interface provides a built-in crop tool, enabling the user to select the specific portion of the image that will be displayed on the published website.

Watch the tutorial video:  
[![](https://www.simdif.com/img/youtube-icon.png)How To Add A Header Image](https://youtu.be/FBCJSS0wWo8)

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