Resize images in bulk
Drop a folder, get a zip back.
Drop an image here, or .
Free, no sign-up. Runs in your browser; nothing is uploaded.
Bulk Image Resizer: how to use it
- Drop a folder, or select several images at once.
- Choose Resize by: Longest side, Width, Height or Percent, and type the Target value.
- Pick Save as and a Quality, then press the button. Every image is resized and you get a single zip file.
Tips
- Longest side is the safest choice for a mix of portrait and landscape photos: each one ends up no bigger than the target in either direction.
- Leave Allow enlarging unticked so small images are not blown up and blurred.
- Files keep their names inside the zip, so numbered sets stay in order.
Bulk Image Resizer: what it does and when to use it
The bulk resizer applies one size rule to every image you drop in and hands back a single zip. You can size by the longest side, which is the usual choice for a mixed set of portrait and landscape photos because each one keeps its own shape, or by a fixed width, a fixed height, or a percentage.
Everything happens in your browser, one image after another, so a folder of holiday photos or product shots never leaves your computer. The Quality setting applies to JPEG and WebP output; around 80 is a good balance for photos going onto a website or into an email. Resizing a set to 1600 or 2000 pixels on the longest side typically makes each file a small fraction of a camera original.
The limit is your device's memory and patience rather than a quota: hundreds of photos work, but a phone will be slower than a laptop. If you need different sizes for different images, or an exact shape with cropping, process those one at a time with the Image Resizer or the Image Cropper.
Bulk Image Resizer: frequently asked questions
Is the Bulk Image Resizer free, and do I need to sign up?
Yes, the Bulk Image Resizer is 100% free with no sign-up, no login and no account. The Bulk Image Resizer runs in your browser, so it has no daily limit and no upload, and saves at full size with no watermark. See why it is free.
How do I resize multiple images at once for free?
Drop a folder or select several photos, set the size and format, and download one zip file with every image resized. Everything runs in your browser, so even a large batch of private photos is never uploaded.
Can I compress a batch of photos too?
Yes. Choose JPEG or WebP and a quality setting, and every photo is resized and compressed in the same pass. For a single photo that must hit an exact file size, use the Image Compressor.
Will bulk resizing keep my photos in order?
Yes. Files keep their names inside the zip, so a numbered set of product or holiday photos stays in sequence. Related guide: How to resize an image without losing quality.