Resize multiple images at once
Drop in a whole batch, choose one size and download every resized image in a single ZIP. It is free, requires no signup, adds no watermark and processes everything on your device.
Loading bulk image resizer…
How to resize images in bulk
Add your images
Select several JPG, PNG or WebP files together, or drag them into the tool. You can mix formats and original dimensions in the same batch.
Set the output dimensions
Choose a preset or enter a width and height in pixels. If changing one dimension also changes the other, unlock the aspect ratio to enter both independently. Every image uses the same output dimensions.
Choose how the images fit
Use Fit to keep the whole image, Fill and crop to fill the canvas while trimming edges, or Stretch to force the image into the new proportions. Check the live preview before downloading.
Choose a format and download
Select JPG, PNG or WebP, then choose Resize & download. Two or more images download together in a ZIP; a single image downloads directly. Extract the ZIP to access the individual files.
Square product photos without cropping
Suppose your product photos are a mix of landscape and portrait images, and you want each output to be 1200 × 1200 pixels. Enter those dimensions, choose Fit, and set the empty-space colour to white. The whole photo stays visible inside a square canvas.
A 1800 × 1200 landscape photo becomes 1200 × 800 inside that canvas, leaving 200 pixels of space above and below. A 1200 × 1800 portrait photo leaves the same space on the left and right. This adds space around the existing photo; it does not remove its background.
Choose Fill and crop when edge-to-edge coverage matters more than keeping every edge. Cropping is centred, so inspect photos with subjects near the sides. Stretch can distort products and is usually unsuitable when their proportions matter.
Try these settings in the bulk resizer ↑Choose quality and file format
JPG is a useful starting point for photos. WebP is another option when your destination accepts it. Both have a quality setting: lower values can reduce file size but may introduce visible artefacts.
PNG uses lossless encoding, so it has no quality slider. Resizing still changes the image pixels, and enlarging a small source will not recover missing detail. Check a downloaded image at full size before processing an important batch.
Pixel dimensions and file size are different. The tool sets dimensions; it does not guarantee a particular KB or MB limit.
What happens to your batch?
The same dimensions, fit mode, background colour and output format apply to every image. Downloaded filenames include the dimensions and resize mode so you can distinguish them from your originals.
Images are processed in your browser and are not uploaded to RightSizeFast. Large files and batches use your device’s memory; if a batch fails, try fewer images or smaller output dimensions.
Need a platform-specific starting point? Browse the image size presets, including Instagram, LinkedIn and Pinterest.
Is the bulk image resizer free?
Yes. There is no signup, usage charge or watermark.
Can I resize JPG, PNG and WebP together?
Yes. You can add a mixed batch and choose one output format for all downloaded files.
Does resizing preserve quality?
Downsizing generally stays sharp, while enlarging a small source can soften it. PNG output is losslessly encoded; JPG and WebP include an adjustable quality setting.