Click a file name, width or height below to give one photo its own name or size.
No limit: resize as many images as you need.
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Bulk Image Resizer – Resize Multiple Images
Resize a whole batch of photos in one go. Set one width and height in pixels, or shrink every picture by a percentage, then download all the resized images together in a single ZIP.
Use it to prepare holiday photos for sharing, product pictures for an online shop, images for a blog or any folder of pictures that needs one common size.
How to Use the Bulk Resizer
- Add your images: Choose PNG, JPEG, WebP or SVG files, or drag a whole folder onto the page. There is no limit on the number of files.
- Check the settings: Pick Pixels or Percentage, enter the size, and decide whether to keep the aspect ratio, compress the files and change the output format.
- Click Resize images: Every file is processed in your browser, with a progress bar.
- Download: Click Download all images to get one ZIP file, or save single images from the list.
Options You Can Use
- Pixels or percentage: Fixed sizes for forms and platforms, or a share of the original for mixed folders.
- Maintain aspect ratio: Enter just the width and the height follows, so nothing looks squashed. Untick it to force an exact width and height.
- Compress image: A quality slider makes files lighter.
- Output format: Keep the original format, or convert everything to JPEG, PNG or WebP.
- Rename all: Give the files a pattern like
holiday-{n}or{name}-small. - One-off changes: Click a file name, width or height in the list to set its own name or size.
Choosing the Right Size
File size depends mostly on the number of pixels. A modern phone photo is around 4000 × 3000 px – far more than any screen needs. For websites, 1200–1600 px wide is plenty; for email, 1024 px; for social posts, 1080 px. Then a quality of 70–80% trims the file further with no visible loss.
Avoid making photos larger than their original size – enlarging cannot add detail, so the result looks soft.
Private, Fast and Unlimited
All the resizing happens on your own device, so there is no upload wait and your pictures stay private. It is free with no sign-up and no watermark. For one photo with more control, use Resize Image in Pixels.
Resize Images by Percentage Bulk Resize for Website / Blog Bulk Resize Product Photos Bulk Image Compressor Bulk Convert to JPG Bulk Convert to WebP
Frequently Asked Questions
How do I resize many images at once?
Is there a limit on how many images I can resize?
Which formats are supported?
Will my photos be stretched?
Can I give one photo a different size?
How do I rename all the files?
holiday-{n} for numbered names or {name}-small to keep the original name, then click Rename all.Is Bulk Image Resizer free to use?
Are my files uploaded to a server?
More bulk tools
Ready-made settings for the jobs people do most – each opens the same resizer with the right size and format filled in.