Resize Images Online — Free

Set exact pixel dimensions, lock the aspect ratio, and batch resize multiple images at once. 100% local processing — your files never leave your device.

Batch resizeLock aspect ratioAny formatNo upload

100% Local Processing — Your files never leave your browser

EXIF metadata removed automatically

Drop images here or click to browse

PNG, JPG, WebP, GIF, BMP, HEIC

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Exact dimensions

Enter width and height in pixels. The converter scales precisely to your target size.

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Aspect ratio lock

Enter one dimension and the other adjusts automatically to keep your image proportional.

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Batch processing

Drop multiple images at once and resize them all together. Download as a ZIP file.

What is an image resizer?

An image resizer changes the pixel dimensions of a photo or graphic — making it wider, narrower, taller, or shorter — without cropping content out of the frame. Pixvert's image resizer lets you type an exact width and height in pixels, or lock the aspect ratio so one dimension scales automatically when you change the other.

This tool is useful whenever an image needs to fit a specific size requirement: a product photo for an online store, a profile picture with fixed dimensions, or a banner that has to match a website layout exactly. Instead of guessing dimensions in a design program, you set the numbers directly and get a pixel-accurate result.

The resizer works entirely with the Canvas API in your browser, which means it can scale one image or an entire batch at once. There is no server processing step, so resizing is nearly instant even for larger files, and the images never leave your device.

How to resize an image online

1
Upload your image or images — drag and drop files into the drop zone, or click to browse — batch resizing is supported
2
Enter the target width and height — type exact pixel values, or lock the aspect ratio so height adjusts automatically as you change width
3
Preview the result — check the resized dimensions before downloading
4
Download — save a single image directly, or download the whole batch as a ZIP file

When to use an image resizer

E-commerce product photos

Marketplaces like Amazon, Etsy, or Shopify often require specific pixel dimensions for product images — resize a batch to match the requirement before uploading.

Social media and profile pictures

Avatars and cover photos on most platforms need exact square or rectangular dimensions to avoid awkward cropping.

Website performance

Serving an image at its display size instead of its original resolution reduces page weight and speeds up load times.

Email attachments

Shrink large photos to a reasonable size before attaching them to an email to avoid hitting attachment limits.

Print and design templates

Fit a photo into a template with predefined pixel dimensions, like a flyer, thumbnail, or banner ad.

Why use Pixvert to resize images?

✓100% local processing: resizing happens in your browser with the Canvas API — files are never uploaded to a server
✓Batch support: resize multiple images in one pass and download them together as a ZIP
✓No signup required: use the tool immediately, no account or email needed
✓Works with any common format: PNG, JPG, WebP, and more are all supported as input and output

Frequently Asked Questions

Does resizing reduce image quality?

Making an image smaller rarely causes visible quality loss. Making it significantly larger than its original resolution can introduce blur, since the tool has to interpolate new pixels that were not in the source image.

Can I resize multiple images at once?

Yes. Drop several files into the tool and set the target dimensions once — every image in the batch is resized the same way and can be downloaded together as a ZIP.

Will resizing change the aspect ratio and distort my image?

Only if you set width and height independently without locking the ratio. Enable the aspect ratio lock to keep proportions correct and avoid stretching.

What is the maximum file size I can resize?

There is no hard limit enforced by Pixvert, but very large files (above 20-30 MB) may be slow depending on your device, since processing happens locally in your browser.

Is my image uploaded anywhere?

No. All resizing happens locally using the Canvas API. Your images are never sent to a server.

Can I use the resized images commercially?

Yes, there are no restrictions on how you use the output. Pixvert only processes the pixels — it does not claim any rights over your images.