How to use the bulk image resizer
- Add your images. Drag images onto the drop area, click it to choose files, or paste an image from your clipboard. You can add as many as you like.
- Choose how to resize. Resize to a set width or height, fit inside a box, crop to an exact size (useful for thumbnails and social images) or scale by a percentage.
- Pick a format and quality. Keep the original format or convert to JPG, PNG, WebP or AVIF. A quality of 75 to 85% usually cuts file size a lot with no visible difference.
- Download. Download images one at a time, or all of them together as a ZIP file.
Why resize images for the web?
Images are usually the heaviest part of a web page. Uploading a 4000px photo for a 1200px slot makes the page slower to load, which affects visitors and Core Web Vitals scores such as Largest Contentful Paint. Resizing to the size you actually display, and compressing, often reduces file size by 80% or more.
Private by design
Most online resizers upload your files to a server. This tool uses your browser's own image engine, so files stay on your device. That makes it suitable for client work, unreleased product shots and personal photos.
Quality and metadata
Large reductions are done in steps for sharper results. Photos are rotated correctly using their EXIF orientation, and the exported files have EXIF data (including GPS location) removed, which reduces size and protects privacy.
Frequently asked questions
Are my images uploaded anywhere?
No. Everything happens in your browser. You can even disconnect from the internet after the page has loaded and the tool will still work.
Is there a limit on the number of images?
There is no fixed limit. Very large batches of high-resolution photos depend on your device's memory, so for hundreds of images work in batches of 50 or so.
Which formats can I use?
Any format your browser can open, which normally includes JPG, PNG, WebP, GIF, AVIF, BMP and SVG. Output can be JPG, PNG, WebP or AVIF, depending on browser support.
Why is AVIF greyed out?
Some browsers can display AVIF but cannot create it yet. Use WebP instead, which is supported everywhere and is still much smaller than JPG.