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Resize image for Facebook

Make a Facebook cover photo, profile picture, post image, or event cover at the right size. Free, with no upload.

Files stay on your device

Drop images to resize

Add one or as many as you like. Each is edited on your device, so nothing is uploaded.

PNG, JPG, WebP, HEIC, AVIF, SVG, BMP, and GIF. As many as you like, or a whole folder.

Size for
Pick a size, then drag the box over the part to keep.

Shown 820 × 312 on a computer and cut to 640 × 360 on a phone, so keep what matters in the middle.

Size
Resize by

Both sides are used as typed, stretching the picture if they don't match its shape.

Crop
Shape

Drag the box over the picture, or pull its handles. The shape is centered on any other picture you add.

Turn

Clockwise above zero. The corners it leaves are filled in, or see-through in a PNG.

Mirror

Horizontal swaps left and right, as a mirror does. Vertical turns it upside down.

Every color becomes the gray of how bright it looks.

A JPG, PNG, or WebP stays what it is. Other pictures become JPG, or PNG when they're see-through.

Transparent areas and corners in a JPG

How to resize an image for Facebook

Pick the cover photo at 851 × 315, a profile picture, a post image at 1200 × 630, or an event cover, add your picture, and drag the box over the part to keep. It's saved at exactly that size for download. Everything happens in your browser, so your picture is never uploaded.

  1. Step 1

    Pick the size
    Cover photo, profile picture, post, or event cover.

  2. Step 2

    Choose the part to keep
    Add your picture and drag the box over it.

  3. Step 3

    Download
    Save it at Facebook's exact pixels.

What to expect

Supported inputs
JPG, PNG, WebP, HEIC, AVIF, BMP, GIF, and SVG. HEIC opens in Chrome, Edge, and Safari on most computers, but not in Firefox.
What happens
The crop box keeps the preset's shape while you drag it, and the part inside is drawn at the preset's pixels, so nothing is stretched. The file is saved as JPG, or PNG for a picture with transparency. Facebook compresses every upload again, so a JPG under 100 KB at the right size is changed least.
Limits
A cover photo is shown 820 × 312 on a computer and cut to 640 × 360 on a phone, so keep faces and text in the middle. Your profile picture covers its lower left.

Private by design

Your images stay on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

  • No upload
  • No signup
  • No watermark

Questions

Upload 851 × 315 pixels, or 1640 × 624 for a sharper one at the same shape. It's shown 820 × 312 on a computer and 640 × 360 on a phone, with the sides cut.

320 × 320 pixels or larger, square. It's shown 170 pixels across on a computer and 128 on a phone, as a circle.

1200 × 630 pixels, 1.91:1, which is also the size of the picture on a shared link. An event cover is 1920 × 1005.

No. They're resized in your browser, on your device, so nobody else sees them.

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