Magic Resizer
Free Bluesky Image Resizer
Resize your images for Bluesky and trim them down to fit Bluesky’s strict 1 MB upload limit without obvious quality loss.
Everything happens in your browser, no software to install, no account required for your first five images.
Your images stay on your device, nothing is uploaded to Buffer.
Resize images for other networks
Bluesky image sizes & requirements
Use these recommended sizes for the sharpest Bluesky images, and keep within the upload limits below so nothing is rejected or compressed.
| Format | Size (pixels) |
|---|---|
| Square post | 1080 × 1080 |
| Landscape post | 1200 × 675 |
Upload requirements
- Bluesky does not resize images, so compress to fit the 1 MB limit.
- GIFs: up to 15 MB / 60 seconds.
Sizes and formats are based on Buffer’s ideal image sizes and formats guide.
FAQs
What is the best image size for Bluesky?
What is the best image size for Bluesky?
The recommended Bluesky image sizes are: Square post (1080 × 1080 px), Landscape post (1200 × 675 px). Buffer's free image resizer crops and resizes your photo to each of these in one step.
What image formats does Bluesky support?
What image formats does Bluesky support?
Bluesky accepts JPG, PNG, WebP, HEIC. The maximum file size is 1 MB.
Do I need a Buffer account to resize Bluesky images?
Do I need a Buffer account to resize Bluesky images?
No. You can resize up to 5 images without an account. After that, create a free Buffer account to keep resizing for free.
Are my images uploaded to a server?
Are my images uploaded to a server?
No. All resizing happens directly in your browser, so your images are never sent to or stored on Buffer's servers.
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