Substack Image Resizer
Prepare Substack logos, wordmarks, email banners, welcome covers, and social previews with publication-specific presets.
Sizes, to scale
+2 more sizes below
All Substack Image Sizes
Choose the Substack format you need, then review its source notes, crop, and image quality.
Creator and Community Image Sizes
Prepare artwork for creator pages, newsletters, music releases, streaming channels, support pages, and chat communities using source-backed presets.
Substack
Turn Resized Substack Images Into a PDF
Put one image on each page, arrange the order, and create the PDF in your browser.
About Substack Image Sizes
Resize Images for Substack covers Publication Logo, Wordmark, Email Banner, Welcome Page Cover, Social Preview. Each preset is tied to current first-party guidance and includes the source on its detail page.
Start from the clearest source available, use the preset as a preparation canvas, and inspect the final upload because responsive layouts can crop the same image differently.
Substack Size Cheatsheet
Quick reference for all Substack image dimensions.
| Format | Dimensions |
|---|---|
| Substack Publication Logo | 256 × 256 |
| Substack Wordmark | 1344 × 256 |
| Substack Email Banner | 1100 × 220 |
| Substack Welcome Page Cover | 600 × 600 |
| Substack Social Preview Image | 1200 × 630 |
Posting somewhere else? Use the free image resizer to resize images for any platform.
How to resize images for Substack?
- 1
Step 1: Upload your image
Select the image you want to resize for Substack. Our tool supports JPG, PNG, WebP, and HEIC formats.
- 2
Step 2: Choose your Substack format
Select the specific Substack preset you need, whether it is a background, icon, thumbnail, profile image, banner, post, or another supported placement.
- 3
Step 3: Download and share
Review the crop and image quality, then download the resized image and upload it to Substack.
What image size presets are available for Substack?
This page provides Substack Publication Logo (256x256), Substack Wordmark (1344x256), Substack Email Banner (1100x220), Substack Welcome Page Cover (600x600), plus 1 more. Open a preset to see whether its dimensions are a documented requirement, recommendation, minimum, or practical working canvas.
Is the Substack image resizer free?
You can open the Substack resizer and upload an image on the web. The editor will show any sign-in or usage limit that applies before processing.
Will resizing reduce my image quality?
Resizing can reduce detail, especially when a small source image is enlarged. Start with the highest-resolution image available and review the result before using it for Substack.
Can I resize multiple images at once?
This resizer processes one image at a time. Choose the Substack format you need, review the result, and download it before starting another image.
File tools
Convert the resized image
Need a different file format or transparent background? Choose a focused converter, then check the preview and encoded size before downloading.
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