Design tools
AI email banner tool

Create an email banner built for real inbox widths.

Describe your campaign, newsletter, or promotional message and get an email banner generator brief sized for common inbox widths, ready to refine in Vizify.

Built around the ~600px width most inboxes render correctly Four formats — header, newsletter, promo strip, and signature banner Ready to refine in Vizify before you generate
Start with the messy versionOptional choices help Vizify shape the handoff.
Try a starting point

Your brief and choices open in Vizify for review. Nothing runs until you send it.

You give

Campaign or newsletter message

Audience and sending context

Required headline, offer, or CTA text

Brand colors and banner format

Vizify hands back

Email banner direction sized for inbox display

Clear headline-to-CTA hierarchy

Generation-ready prompt for Vizify

What it does

Built to hand back finished work.

Vizify

Built for real inbox rendering

The brief targets the roughly 600px-wide banner shape that renders consistently across Outlook, Gmail, and other major email clients.

Vizify

Matches campaign, newsletter, promo, and signature formats

Choose the Banner format control to fit an email header, recurring newsletter masthead, single-offer promo strip, or a compact signature banner.

Vizify

From rough message to a usable direction

Vizify organizes your campaign message, audience, and required text into a focused email banner brief.

Vizify

Continue with the context intact

The complete brief opens in Vizify, where you can generate, review, revise, and save the work without rebuilding the prompt.

FAQ

Questions, answered.

What size should an email banner be?

Most email templates use a roughly 600px-wide banner, since that width renders consistently in Outlook, Gmail, and other major clients; height typically runs 150–300px depending on format. The brief targets these common proportions, but confirm the exact export against your email platform's template width before sending.

What's the difference between the email header, newsletter, promo strip, and signature formats?

Email header sits at the very top of a standalone campaign. Newsletter header is built for a recurring digest with a masthead feel. Promotional strip is a compact banner for a single offer, often placed mid-email. Signature banner is the smallest, meant to sit below your name in a personal or team email signature.

Will the exact headline and CTA text I want appear on the banner?

Put the exact wording in your brief. Email banners route to Vizify's typography-capable image models, but always review the rendered text in Vizify before sending — generated text isn't guaranteed pixel-perfect, so check spelling and hierarchy.

Can I match my brand colors and existing template style?

Yes. Describe your brand colors, existing template look, and tone in the prompt, or start from the Style control — brand-led, editorial, bold offer, or minimal — and refine further.

Will the banner still work if a recipient's email client blocks images?

Not automatically — most email clients block images by default until a recipient allows them. Keep your subject line and preheader text carrying the core message, and treat the banner as visual reinforcement rather than the only place your offer appears.

What file format and size should I export for email?

A compressed JPEG or PNG under roughly 1MB loads quickly on mobile connections; oversized banner files are a common cause of slow-loading or clipped emails in some clients.

Can I generate a banner for a specific platform like Mailchimp, Klaviyo, or Outlook?

The brief isn't tied to one email platform. Describe your platform or template constraints, such as the exact width your template expects, in the prompt, and Vizify accounts for them in the generated direction.

How is this different from the general Banner Generator?

The [AI Banner Generator](/tools/banner-generator/) covers any web, social, or display banner. This page is tuned specifically to email formats — header, newsletter, promo strip, and signature — and to the width and image-blocking realities of inbox rendering.

Can I use this for a social graphic or website banner too?

Not directly. For a web or display banner use the [AI Banner Generator](/tools/banner-generator/), and for a platform-specific social header see the [Social Media Banner Generator](/tools/social-media-banner-generator/) or a dedicated platform tool.

Do I need an account to use this?

You can prepare the brief here without an account. Sign in to Vizify when you want to generate, save, or reuse the banner.

Can I revise or reuse the banner after it's generated?

Yes. The brief you build here opens in Vizify, where you can adjust the prompt, controls, and generation direction, then regenerate or save the result.

What makes a good email banner brief

Name the campaign, newsletter, or announcement it’s for, the audience it’s going to, and the exact headline, offer, or CTA text that has to be legible. Pick the format that matches where it will sit — header, newsletter masthead, promo strip, or signature — since each has a different width-to-height feel. Add your brand colors and tone so the banner reads as part of the same email rather than a bolted-on graphic.

Common mistakes to avoid

Don’t rely on the banner alone to carry your offer — many inboxes block images by default, so your subject line and preheader text need to work even if nobody sees the graphic. Don’t cram a long headline and a CTA button into a narrow signature banner; that format reads best with a short line or two. And don’t export an oversized file: a heavy banner slows mobile load times and is a common reason emails look clipped or broken in some clients.

Choosing a format: header, newsletter, promo strip, or signature

Use an email header for a standalone campaign that needs one strong visual moment at the top. Use a newsletter header when the same masthead will repeat across recurring issues and should stay recognizable over time. Use a promotional strip for a single, time-boxed offer placed mid-email. Use a signature banner only for the small strip beneath a name in an email signature — keep it minimal, since it’s viewed at a much smaller size than the others.

Start with the rough version

Create your next email banner in Vizify.

Open Vizify