Resize Image Online

Resize JPG, PNG and WebP images online for free. Set exact width and height in pixels, keep the aspect ratio, crop to fit, stretch when needed, preview the result and download instantly.

Drag & Drop Image Here
Upload JPG, PNG or WebP and change its size in pixels
or
Supported formats: JPG, PNG, WebP

Original Image

Preview the uploaded image before resizing. Drag to move and use the wheel to zoom.

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Original File
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Resized Preview

Preview the resized result before downloading. Drag to move and use the wheel to zoom.

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Resized File
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Input type
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Original size
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Target size
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Output format
Original

Resize images by pixels online

PictLab helps you change the dimensions of JPG, PNG and WebP images directly in your browser. Upload an image, enter a custom width and height, choose how the image should fit the new size, then preview the resized result before downloading.

Use this free image resizer when you need exact pixel dimensions for social media, websites, online forms, profile pictures, thumbnails, email attachments or document submissions.

Best ways to use the resize modes

Contain

Fits the full image inside the target size while preserving the whole picture. Best when you do not want cropping.

Crop to fit

Fills the exact target size and may crop edges. Best for social posts, thumbnails and fixed-size layouts.

Stretch

Forces the image into the exact width and height. Use only when proportions are not important.

Popular resize uses

  • Resize image to exact width and height in pixels
  • Make images smaller before uploading to websites or forms
  • Create square images for social media posts and profile pictures
  • Resize images for thumbnails, banners and product photos
  • Export resized images as JPG, PNG or WebP

Related image tools

Continue editing your image with other free PictLab tools.

Compress Image

Reduce image file size after resizing to make it easier to upload and share.

Crop Image

Crop unwanted edges or create a cleaner composition before resizing.

Image Converter

Convert resized images between JPG, PNG and WebP formats.

Watermark Image

Add text or logo watermarks to protect resized images before publishing.

Social Media Resizer

Resize images for Instagram, Facebook, YouTube and other platforms.

Images to PDF

Combine resized images into a clean PDF document.

Frequently asked questions

Can I resize an image without losing proportions?

Yes. Keep “Lock aspect ratio” enabled and PictLab will update the matching width or height automatically.

What is the best mode for social media?

Use “Crop to fit” when you need an exact post size. Use “Contain” when you want the full image to remain visible.

Can I resize JPG, PNG and WebP?

Yes. This tool supports JPG, PNG and WebP input files and lets you keep the same format or export to another one.

Can I resize an image to exact pixels?

Yes. Enter your target width and height in pixels, then preview the resized output before downloading it.

Should I compress after resizing?

Often yes. Resizing changes dimensions, while compression reduces file size. You can use Compress Image after resizing.

Does the tool upload my image to a server?

The resizing process is designed to run in your browser, which helps keep the workflow fast and private.