zerouploads

Image Resizer

Resize one image by pixels, percent or print size. Drag to frame the crop, lock the ratio, and write JPG, PNG or WebP.

  • Unlimited
  • No signup
  • Private
  • Works offline

Image resize workbench

No image yetdrop, paste or choose a file to start

Choose an image file

Preview

Add an image to see the new size

New size
1920 × 1080
Original
Scale

Resize settings

Dimension mode
Output dimensions

aspect locked at 4:3 · height follows width

Resize output options

Fit keeps the whole picture. Fill crops the edges. Stretch changes the shape.

WebP is the smallest. JPG opens anywhere but loses clear areas. PNG keeps every pixel.

Resize safeguards

Presets

Click to apply

Output 1920 × 1080 · JPG · quality 85 · sRGB, no EXIF

How it works

  1. 01

    Add your image

    Drop, paste or pick one file. It stays in this tab and is never sent anywhere.

  2. 02

    Frame it and give one edge

    Drag the picture to choose what is kept. Type a width in pixels, a percent, or a print size.

  3. 03

    Resize and download

    Pick JPG, PNG or WebP, then save the new image straight to your device.

Fit, fill and stretch

These three only differ when your image and your target are different shapes. Fit keeps the whole picture, so one edge finishes short of the box. Fill covers the box and crops what hangs over, evenly from both sides. Stretch takes the box exactly and changes the proportions, so circles turn into ovals.

Fit is the safe default. Use Fill when the box is fixed and the crop is fine, like a square avatar from a wide photo. Stretch is rarely what you want. Leave Never make an image bigger switched on unless you have a reason. Enlarging cannot add detail the file never held, so it only makes the picture softer.

Size modes
Pixels, percent, or print size in mm or inches at a DPI.
Framing
Drag to move and scroll to zoom. Arrow keys move it too.
Formats
JPG, PNG and WebP out. Any image your browser reads goes in.
Sharpening
Optional. An unsharp mask over the output, off by default.

Frequently asked questions

How do I choose which part of the photo is kept?
Pick Crop to fill, then drag the image under the frame. Scroll or pinch to zoom in. The frame always matches the width and height you asked for, so what you see is what you get.
Will resizing lose quality?
Making an image smaller throws pixels away, so fine detail goes. The browser samples at its highest quality setting, which keeps edges clean. Making an image bigger cannot add detail that was never there, so it looks soft.
How do I resize without cropping?
Keep the lock on and choose Fit inside. The whole frame stays visible and neither edge goes past the box you asked for. Fill crops instead, and Stretch changes the shape.
Can I resize for print at 300 DPI?
Yes. Choose Print size, type the width and height in millimetres or inches, then set the DPI. A4 at 300 DPI works out to 2480 by 3508 pixels.
Can I resize many images at once?
No. This tool takes one image, so the frame is big enough to drag and the crop is yours to place. A batch would have to guess that for you. Open a second tab for the next file.
Should I turn on Sharpen after resize?
Try it if a shrunk photo looks soft. Making an image smaller blends nearby pixels, which takes the crispness out of edges. Sharpening adds some back. Leave it off for line art and screenshots, where it can outline things twice.
Is there a maximum image size?
There is no limit here. Your free memory and the largest canvas your browser allows are the real ceiling.
Does my file get uploaded anywhere?
No. The image is decoded and redrawn inside the browser. It never leaves your device.
What happens to EXIF data and colour profiles?
Both are dropped. Your browser redraws the pixels and tags the result sRGB. For a web image that is usually what you want, and it is not a setting here.
Which output format should I pick?
WebP gives the smallest file at the same quality. JPG opens anywhere but has no transparency. PNG keeps every pixel exact, which suits line art and screenshots.
Can I resize an SVG?
No, and it does not need it. An SVG is a drawing, so it stays sharp at any size. Change the size in the file, or export a PNG first.
Does this work offline?
Yes. Once the page has loaded, resizing carries on with no network connection.
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