Magic Resizer

Free Threads Image Resizer

Resize your images for Threads in square, portrait, and landscape so they keep their quality after Threads compresses them.

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.

Threads image sizes & requirements

Use these recommended sizes for the sharpest Threads images, and keep within the upload limits below so nothing is rejected or compressed.

Recommended Threads image sizes
FormatSize (pixels)
Square post1080 × 1080
Portrait post1080 × 1350
Landscape post1080 × 566

Upload requirements

Accepted formatsJPG, PNG, WebP, HEIC
Max file size8 MB
  • Up to 4 images per post.
  • Images are downscaled to about 1.6 MP (roughly 1280 × 1280).

Sizes and formats are based on Buffer’s ideal image sizes and formats guide.

FAQs

What is the best image size for Threads?

The recommended Threads image sizes are: Square post (1080 × 1080 px), Portrait post (1080 × 1350 px), Landscape post (1080 × 566 px). Buffer's free image resizer crops and resizes your photo to each of these in one step.

What image formats does Threads support?

Threads accepts JPG, PNG, WebP, HEIC. The maximum file size is 8 MB.

Do I need a Buffer account to resize Threads 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?

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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