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Resize Image

Resize images for social media, thumbnails, banners, or custom dimensions.

.jpg, .jpeg, .png, .webp · up to 200 MB per file

  • JPG, JPEG, PNG, WEBP
  • up to 200 MB per file
  • Never uploaded

How it works

  1. 01

    Upload image

    Choose the image; the current dimensions are shown before you resize.

  2. 02

    Choose size

    Pick a preset or enter custom dimensions.

  3. 03

    Download

    Get the resized image in the same format.

Diagram: a photo is resized to a smaller pixel grid and re-encoded, producing a lighter file with the same picture.4000×3000 · 4.8 MB1600×1200 · 380 KB

What Resize Image does

Change an image's pixel dimensions. This is normally about clearing a limit somewhere else — a form that rejects anything over a fixed width, a profile picture that must be square, or a 12-megapixel phone photo being used as a small thumbnail where the full resolution is wasted bandwidth.

Shrinking a large photo in one step throws away detail — the browser samples too few of the original pixels. The tool therefore scales down in halves until it is within a factor of two of the target, then does the final resize with high-quality smoothing. That is what keeps thin lines and text readable in a screenshot reduced to a quarter of its size, and it is the same approach photo libraries use.

Width and height are applied exactly as entered; if the proportions differ from the original, the picture is stretched rather than cropped. Use Crop Image first to set the shape, then Resize to set the size. The output keeps the input format: JPG is re-encoded at quality 92, PNG stays lossless with transparency, WebP at quality 90. Presets (YouTube thumbnail, Instagram square and so on) fill in the numbers for you.

Formats and limits

Accepts
.jpg, .jpeg, .png, .webp
Produces
Resized image
Files per run
One
Size limit
200 MB per file

When you'd use it

  • A header image that must be exactly 1200 × 630 for social previews
  • Fitting a photo to a passport-photo pixel size
  • Shrinking a phone photo to a sensible web size

Limitations

  • Enlarging past the original size interpolates pixels and looks soft; the tool does not invent detail.
  • Resizing writes a new file; EXIF metadata such as camera settings is not copied across.

Questions

What presets are available?

YouTube thumbnail (1280×720), Instagram post (1080×1080), YouTube banner (2560×1440), and more.

What is the difference between resizing and compressing?

Resizing changes how many pixels the image has. Compressing keeps the dimensions but stores them more efficiently. If a site rejects your file for being too large in megabytes, try compressing first; if it rejects it for being too wide or tall, resize.

Can I enlarge a small image without it going blurry?

Not meaningfully. Enlarging invents pixels that were never captured, so the result looks soft however it is done. Scaling down is lossless in appearance; scaling up is not.

Will resizing keep the proportions?

Yes, the aspect ratio is preserved so nothing is stretched. If you need a different shape, crop to that shape first and resize afterwards.

What happens to your file

Your file is never uploaded or stored.

Full detail in the Privacy Policy.

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