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Home / Free Tools / Image Resizer
Free Image Tool

Free Image Resizer

Resize any photo to the exact size you need, with ready presets for every major social platform.

How to fit

Free, no sign-up. Runs in your browser, so nothing you enter or upload is sent to our server.

How It Works

How to Use the Image Resizer

  1. Choose an image from your device.
  2. Pick a preset such as Instagram portrait or YouTube thumbnail, or type your own width and height.
  3. Choose "Crop to fill" to cover the whole frame, or "Fit inside" to keep the full image with a background colour.
  4. Preview the result and download it as JPG, PNG or WebP.

Why It Matters

Every platform shows images at different sizes. Upload the wrong shape and Instagram crops off heads, Facebook blurs your cover and YouTube adds black bars. Resizing to the exact recommended size before you post keeps your images sharp and framed the way you intended.

The presets use the current recommended sizes, such as 1080 × 1350 px for an Instagram portrait post, 1280 × 720 px for a YouTube thumbnail and 1200 × 630 px for link previews on Facebook, LinkedIn and WhatsApp. For a website, resize photos to the largest size they will actually be shown, usually 1920 px wide or less for full-width images.

Related guides

FAQ

Image Resizer: Questions

What is the best Instagram post size?
A portrait post at 1080 × 1350 px (4:5) takes up the most space in the feed. Square posts are 1080 × 1080 px and Stories and Reels are 1080 × 1920 px.
What is the difference between crop and fit?
Crop to fill covers the whole frame and trims the edges that do not fit. Fit inside keeps the whole picture and fills the empty space with the background colour you choose.
Will resizing make my image blurry?
Making an image smaller keeps it sharp. Making a small image much larger than its original size will look soft, because the missing detail cannot be invented.
Are my photos uploaded?
No. Resizing happens in your browser and your photos never leave your device.
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