Does resizing change the image dimensions?

Yes. The image is drawn onto a new canvas at the requested width and height, and the result card shows both the original and resized dimensions.

Does the image resizer preserve transparency?

PNG and WebP output preserve transparency. JPG does not support transparency, so transparent areas are placed on a white background when exporting as JPG.

Is this image resizer private?

Yes. Images are resized locally in your browser and are not uploaded to Humanify.pro or another server.

Resize JPG, PNG and WebP Images Online

Resize one or multiple images by width, height, percentage or exact dimensions. Preserve aspect ratio where appropriate, choose the output format and download every result without uploading files to a server.

Browser processing Real pixel resizing JPG, PNG and WebP

JPG · PNG · WebP Resize and download

JPG, PNG and WebP image resizer

Choose JPG, PNG or WebP images, or drag and drop them here

Up to 20 files · Maximum 20 MB per file · Static output

Resize method

Width and height modes preserve the original aspect ratio automatically.

Target width

Output format

JPG cannot preserve transparency. Transparent areas become white.

JPG and WebP quality 90%

PNG ignores this setting. A 100% JPG or WebP setting is not guaranteed to be lossless.

Select images above, choose the resize settings, and then download the finished files from the results area.

Select one or more supported images to begin.

How to resize an image

STEP 01

Select images

Choose JPG, PNG or WebP files from your device, or drag them into the resizer.

STEP 02

Choose dimensions

Resize by width, height, percentage or exact dimensions and select the output format.

STEP 03

Review and download

Compare the original and new dimensions, inspect file size and download each result.

Which resize method should you use?

Method	Best use	Important behavior
By width	Web images, blog content, email and ecommerce listings	Calculates height automatically from the original aspect ratio
By height	Portraits, vertical galleries or height-limited upload forms	Calculates width automatically from the original aspect ratio
Percentage	Reducing or enlarging every selected file proportionally	Each file keeps its own shape and receives a relative scale
Exact dimensions	Platform-specific sizes such as 1080 × 1080 or 1200 × 628	Uses fit inside, center crop or stretch

What changes during resizing?

The image is rasterised into a new pixel grid at the requested dimensions.
Downscaling usually reduces file size, but not in every case.
Upscaling adds pixels but cannot create original detail that was not present.
JPG and WebP use the selected quality setting and can lose visible detail.
PNG and WebP output preserve transparency.
JPG output places transparent pixels on a white background.
EXIF, GPS, comments and most other embedded metadata are removed.
Animated WebP files become a static image from the first visible frame.

Frequently asked questions

Does resizing actually change image dimensions?

Yes. The image is drawn onto a new canvas at the requested width and height. Each result shows the original and resized dimensions.

Can I resize multiple images at once?

Yes. Select multiple JPG, PNG or WebP files and apply the same resize settings to each one.

Will resizing reduce image quality?

Downscaling usually looks clean, while enlarging can soften or pixelate raster images. JPG and WebP output can also lose visible detail depending on the quality setting.

Does the resizer preserve transparency?

PNG and WebP output preserve transparency. JPG cannot store transparent pixels, so transparent areas are placed on white.

Are my images uploaded or stored?

No. Resizing runs locally in your browser. Humanify.pro does not upload or store the images you select.