Resize Image Pixel Online

Resize images by pixels. Fast, private, and simple.

Need a banner at 1920×1080 or a thumbnail at 1280×720? ImgRizz resizes to exact pixel dimensions, right in your browser. Keep aspect ratio for clean scaling or unlock it to force an exact width and height. Add an optional KB target if you want small files without guesswork.

What this tool does

• Exact pixels: set width and height in PX. No cm, no mm, no inches.
• Aspect ratio control: lock it for proportional scaling or unlock to stretch.
• Optional size target: compress to a specific KB number using JPEG or WebP.
• Batch ready: process up to 10 images and download a single ZIP.
• Private: everything runs locally on your device.

Quick start

1. Drop your images or click Select.
2. Enter Width (PX) and/or Height (PX).
3. Keep Maintain Aspect Ratio on for clean scaling. Turn it off to force exact size.
4. Optional: enable Compress to specific size and pick a KB target.
5. Choose JPEG, PNG, or WEBP, then click Resize Image.

Format guide

• JPEG: best for photos. Small files, adjustable quality.
• WEBP: modern alternative. Often smaller than JPEG at similar quality.
• PNG: crisp for logos and UI, supports transparency. Larger files, no quality slider.

Best practices

• Do not upscale if you can avoid it. Enlarging adds blur and artifacts.
• Use aspect lock unless you specifically need a stretched size.
• For text and UI prefer PNG or high-quality WEBP to keep edges sharp.
• For photos try WEBP or JPEG, then tune the KB target if needed.

Common presets

• YouTube thumbnail: 1280×720
• Twitter/X header: 1500×500
• Instagram portrait: 1080×1350
• Website hero: 1920×1080 or 1920×800
• Small thumbnail: 640×360

FAQ

How do width and height work with aspect ratio on?

If you set both, we scale to fit inside that box without cropping. If you set only one, we scale by that side and keep the original proportions.

What happens if I turn aspect ratio off?

We output exactly the width and height you enter. Use this carefully, since it can distort the image.

Can I hit an exact KB size while resizing?

Yes. Enable the KB target and choose JPEG or WEBP. PNG does not have a quality slider, so it is not ideal for exact KB targets.

Does DPI matter here?

No. Screens care about pixels. DPI is printing metadata and does not change how large an image appears on the web or its file size.

Will metadata like location be kept?

Canvas exports typically strip most metadata by default. That saves a few KB and improves privacy.

Why does my resized PNG still feel big?

PNG is lossless and can be large for photos. For photographic content, try WEBP or JPEG for much smaller files at similar visual quality.

Is transparency supported?

Yes in PNG and WEBP. JPEG does not support transparency and will fill transparent regions with a solid background.

Will you crop my image?

No. This tool scales. If you need cropping, resize first, then use a crop tool, or we can add a crop step to ImgRizz if you want it built-in.

Why are tiny text and UI edges getting fuzzy?

Downscaling can soften edges. Try a slightly larger output size or use PNG for UI and screenshots.

Do you support HEIC input?

If the browser can decode it, yes. Otherwise convert HEIC to JPEG/WEBP locally and then resize here.

Can I batch process?

Yes. Add up to 10 images and download one ZIP with all outputs.

What if I only enter width or only height?

With aspect ratio on, we scale proportionally using the side you provide. With aspect off, the missing side defaults to the original dimension.

Any targets for social sharing?

Aim for clean pixel sizes first. If you also need small files, try 80–200 KB for photos posted to social apps.

How is this different from Reduce Image Size in KB?

This page focuses on pixel dimensions first, KB optional. The Reduce tool focuses on a specific KB goal first. Use whichever maps to your workflow. Try Reduce Image Size in KB if file size is your main concern.