Resize for Mastodon Posts
Mastodon displays images well at 1200x675 pixels (16:9 aspect ratio).
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Supports PNG, JPG, WebP up to 50MB
Popular Presets
Mastodon Post Image Tips
Why Use ImageWand?
Instant Processing
Resize images in seconds with our browser-based tool. No upload wait times.
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Frequently Asked Questions
What size is a Mastodon Post Image?▼
Mastodon Post Image should be 1200x675 pixels with a 16:9 aspect ratio. This is the optimal size recommended by Mastodon.
How do I resize an image for Mastodon Post Image?▼
Upload your image to ImageWand, use the Mastodon Post Image preset which automatically sets the correct 1200x675 dimensions, and download your resized image.
Why is image size important for Mastodon?▼
Using the correct image dimensions ensures your content looks professional, isn't cropped unexpectedly, and displays consistently across devices. Mastodon optimizes for these specific dimensions.
Is this tool free?▼
Yes! ImageWand is completely free with no signup required. Resize unlimited images for any social media platform.