Substack wordmark size
The recommended Substack publication wordmark size is 1344 × 256 pixels (5.25:1 aspect ratio).
Last updated:
Specifications
| Spec | Value |
|---|---|
| Dimensions (px) | 1344 × 256 px |
| Aspect ratio | 5.25:1 |
| Minimum resolution | 1344x256 |
Design at this size with Moda
Start with a canvas pre-set to 1344×256px and let AI generate your design.
Create a Substack publication wordmark →Design tips
Substack says a publication wordmark should be a horizontal image at least 1344×256 pixels. The website editor can resize its displayed appearance without changing the recommended source dimensions.
- •Use a horizontal image at least 1344×256 pixels.
- •Keep the publication name large enough to remain readable when the header is resized.
- •Design the wordmark and square logo as separate assets instead of forcing one crop to do both jobs.
What you need to know
The wordmark carries a publication name in a wide header-friendly shape. Substack's current theme guide sets the source minimum at 1344×256 pixels.
The 5.25:1 canvas is much wider than the square publication logo. Use it for a typographic lockup or name treatment and keep the square logo as the compact identity asset.
Substack lets publishers drag the wordmark's corners to change its displayed size in the website editor. Start with the full recommended source so a larger header treatment remains sharp.
How to create a Substack publication wordmark at the right size
- 1Open Moda and create a 1344×256-pixel horizontal canvas.
- 2Build the publication-name lockup with enough contrast to remain readable when resized.
- 3Export the finished image and upload it as the wordmark in Substack's website editor.
Frequently asked questions
What size should a Substack wordmark be?
Substack recommends a horizontal wordmark at least 1344×256 pixels.
Can I resize a Substack wordmark?
Yes. Substack's website editor lets you drag the wordmark's corners to change its displayed size.
Specs last verified: August 28, 2026. Dimensions may change as platforms update their requirements.