Set Image Dimensions
Bulk Image Resizer Online
Batch resize multiple JPG, PNG, and WebP images to exact dimensions in one click. Perfect for preparing galleries, social media posts, or forms. Upload up to 50 photos, keep aspect ratios safe, and download everything as a ZIP archive directly from your browser.
How to Batch Resize Images Online
Upload photos
Select or drag and drop up to 50 JPG, PNG, or WebP files into the bulk image resizer.
Set batch dimensions
Enter your target width and height to apply to the entire batch of images.
Choose resize mode
Select 'Fit' to keep the original aspect ratio or 'Exact' to force the dimensions on every photo.
Download ZIP
Click download to process the batch and receive a single ZIP archive containing all resized images.
Why Use This Bulk Image Resizer?
Batch resize images
Process up to 50 images at once. Save time by applying the same dimensions to an entire folder of photos.
Aspect ratio protection
Keep the original shape of your photos even when bulk resizing to avoid stretched faces or products.
Bulk scale images
Quickly scale down high-resolution camera photos to web-friendly sizes for faster uploading.
Side-by-side preview
Compare the original and resized output for each file before saving the final batch.
Private browser processing
The batch image resizer runs locally in your browser. Your photos never leave your device.
Resize Multiple Images at Once
If you have a folder full of large camera photos, manually resizing each one takes hours. Use this bulk image resizer to upload up to 50 photos at a time, apply one set of dimensions, and process the entire batch instantly.
Safe Bulk Scale Images
When you batch resize images, some photos might be horizontal and some vertical. The "Fit" mode is designed to handle mixed batches perfectly. It scales each image down so it fits inside your target dimensions without warping or distorting the original shape.
Download the Batch in One Click
Once the batch image resizer finishes processing, you don't have to click save 50 times. Click the master download button to generate a ZIP file containing every resized image, neatly organized and ready to share.
Choose Another Image Resize Method
Visit the Image Resizer hub to resize a smaller batch by exact pixel dimensions or percentage. If file size is the only requirement, use the Image Compressor instead.
Secure Batch Image Resizer
Bulk uploading sensitive photos to a cloud server is a privacy risk and wastes internet bandwidth. This tool uses modern web technology to bulk resize photos entirely within your web browser, ensuring your files never touch our servers.
Tested for bulk processing stability
We rigorously test this tool by processing batches of up to 50 large image files to ensure browser memory stays stable, aspect ratios are respected in mixed-orientation batches, and the final ZIP archive extracts properly on Windows, macOS, and mobile devices. Built and tested by Mozammel Hoshen Chowdhury. Review process: Editorial Policy.
Frequently Asked Questions
How do I batch resize images online?
Open the bulk image resizer, upload multiple photos, enter your target width and height, and click download to get all resized images in one ZIP file.
Is there a limit on how many images I can bulk resize?
Yes, you can batch resize up to 50 images at a time. This keeps browser memory stable while processing large photo sets.
Will this bulk resize photos without losing their shape?
Yes. If you choose the 'Fit' mode, the tool keeps the original aspect ratio and scales each photo to fit inside your target dimensions without stretching.
Can I resize multiple images to exact dimensions?
Yes. Choose the 'Exact' mode to force every image in the batch to exactly match your requested width and height. Note that this may stretch images if their original aspect ratio was different.
Do you upload my photos to bulk scale them?
No. Our batch image resizer uses your device's memory to process files directly in your web browser. Nothing is uploaded to our servers.
Which file formats work in the batch image resizer?
You can upload JPG, PNG, and WebP images. By default, the tool outputs JPG files, but you can change the format to PNG or WebP in the settings.