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Email Banner Size: Updated Dimensions for 2024

Mail envelope on pastel blue background

Table of Contents
1. What is the best email banner size?
2. What is the best email signature size?
3. What is the best email banner format?
4. What is the best email signature format?
5. What is the best file size and format for an animated email banner?
6. Why is email banner size important?
7. Wrap up

Your email banner size plays an important role in creating eye-catching email content that your email subscribers will want to open and engage with. It helps you make sure your images are visually appealing and that they display correctly, regardless of what email service provider readers use or whether they’re on their laptop or mobile device. Choosing the wrong size or the wrong file type can reduce the effectiveness of your campaign. It negatively impacts the user experience with:

  • Blurriness
  • Distorted images
  • Slow-loading emails

In this article, we take a look at the best practices for sizing images correctly for email banners and signatures so you can optimize engagement and deliver impactful visual messages to your audience.

What is the best email banner size?

Desktop

  • Width: 600-700 pixels
  • Height: 90-200 pixels
  • File size: Under 100-150 kb

Mobile

  • Width: 350 pixels
  • Height: 100 pixels
  • File size: Under 100-150 kb

While there isn’t one standard email banner size, these approximate dimensions ensure the banner in your email will display correctly on most screens and email services. This size also makes the banner large enough for visuals and text, making your message clear and engaging without taking up too much space.

Email banner size: example from Venngage

Want to learn more? Check out our guide on making great email banners with Omnisend’s email builder tool.

What is the best email signature size?

  • Width: 300-400 pixels
  • Height: 150-200 pixels
  • File size: Under 100 kb

The best size for an email signature generally falls between 300 and 400 pixels to ensure it’s compatible and aesthetically appealing, regardless of the email service provider you’re using or your device. Your email signature’s height should be kept below 200 pixels to prevent it from overpowering the email content.

Email banner size: example from Wise Stamp

What is the best email banner format?

  • PNG: PNG is great for keeping your images looking sharp and clear. It’s good for graphics with text, logos, or complex designs.
  • JPEG: JPEG helps shrink file sizes without losing too much quality. It’s good for photos and images with lots of colors.
  • GIF: If you want your banner to move, GIF is your best friend. GIFs can grab attention and pack a lot of info into a small area.

When it comes to email banners, PNG and JPEG are the go-to formats. Each format has strengths, so you can pick the best one for your specific email content. For banners with text or simple designs, go with PNG to keep everything looking crisp. Use JPEG for banners with high-quality images or photos. 

What is the best email signature format?

  • JPEG: This is a good format for signatures with photos. It compresses files smaller but still looks good
  • PNG: PNG is the best format for signatures with text, logos, or graphics that need to be see-through. It keeps things looking sharp
  • GIF: This is a great option for simple moving signatures, adding a bit of action to your email footer

JPEG, PNG, and GIF are the most popular formats for email signatures. Each format has its advantages in terms of functionality, appearance, and file size. Whichever format you choose, keep the file size small so it loads quickly and looks great on every device.

What is the best file size and format for an animated email banner?

  • File size: Animated email banners should be under 1 MB, but 200-500 KB is best
  • Format: GIFs is a go-to format for animated email banners, allowing you to add some interest and motion while maintaining a compact file size

For moving email banners, the GIF format is the top choice. GIFs can grab attention and show more information in a small space. To make them work well, use fewer colors and frames, keep them short, and test them on different email apps. It’s important to balance how they look with how well they work, as big or poorly made GIFs can load slowly and miss the mark in terms of delivering their message.

Why is email banner size important?

  • Visual impact: Optimal banner size ensures that your email stands out visually and attracts attention
  • Compatibility: Correct sizing ensures banners display correctly across different email services and devices, preventing distortion or cutoff
  • Message clarity: A well-sized banner allows for clear communication of your message and call to action without overwhelming the other email content
  • Loading speed: Optimized size helps in faster loading times, improving the user experience and reducing bounce rates
  • Brand consistency: Ensures consistent branding and professionalism throughout your email campaigns

Choosing the right email header banner size is important. It helps to make loading times quick, causes readers to want to engage with your content, and adds the visual elements of your brand to every communication.

Check out this guide on the Basics of HTML to better understand how to lay out your images perfectly in an email. 

Wrap up

Picking the best email banner image size is very important. It helps to make emails that look visually appealing, get the message across, and that recipients want to engage with. 

When you use the right sizes, your banners and signatures will look professional, load quickly, and display correctly on every device. This makes people more likely to pay attention to your emails. 

The bottom line? Email banners and signature sizing is a small detail that can have a huge impact.

Source from Omnisend

Disclaimer: The information set forth above is provided by omnisend.com independently of Alibaba.com. Alibaba.com makes no representation and warranties as to the quality and reliability of the seller and products.

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