Image Resizer
Use this image resizer free tool when you need to resize image online and compress it for web delivery. It is designed for quick uploads, sensible defaults, and a lightweight workflow that keeps output under control.
When aspect ratio is locked, height is calculated automatically from width.
How to use this tool
Upload an image from your device.
Set the target width, height, format, and quality.
Generate the resized file and download it when the preview looks right.
Use cases
Prepare images for blog posts, landing pages, or product galleries.
Compress screenshots before sending them in support conversations.
Convert oversized photos into faster-loading assets for web use.
Why this tool is useful
A smaller image usually loads faster and is easier to embed in emails, docs, and websites.
Resizing before upload helps reduce bandwidth and keeps page performance in a healthier place.
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FAQ
Does this resize image online without uploading to a server?
Yes. The processing happens in the browser, so the workflow stays fast and local.
Is this also a compress image tool?
Yes. The format and quality controls let you reduce file size while keeping the dimensions you need.
Can I keep the aspect ratio?
Yes. The resizer maintains the aspect ratio so images do not look stretched or distorted.
Related tools
If you want to build tools like this without starting from scratch, kloner.app can help you launch apps faster and create your own tools.