Image
Image Resizer
Resize images in your browser and download the resized file.
About this image resizer
Resize images for websites, social posts, thumbnails, uploads, and quick design tasks without uploading the file.
Mavis Tools is built for quick utility work: paste the input, get the result, and move on. The page is static-first for speed, and the interactive work happens in your browser. That makes it useful for drafts, calculations, debugging snippets, and repeat everyday tasks.
This tool is intentionally focused. It does one job clearly instead of asking for an account or hiding the result behind a long workflow. Bookmark it if you need a fast image resizer that works on desktop and mobile.
FAQ
Are images uploaded?
No. The image is processed with browser canvas on your device.
Which formats work?
Any image format your browser can load, commonly PNG, JPEG, and WebP.
Can I preserve aspect ratio?
Yes. Keep the lock option enabled while editing dimensions.