Batch image resizer: resize multiple images
Resize up to 20 PNG, JPG or WebP images by percentage or maximum width while preserving their aspect ratio.
Resize multiple images consistently
Apply one scaling rule across an entire batch. Choose a percentage for enlargement or reduction, or set a maximum pixel width to prepare images for websites, email and social media.
Local high-quality image rescaling
The browser uses high-quality image smoothing and preserves the original aspect ratio. JPG and WebP quality are configurable, while PNG output retains transparency.
How to batch resize images
- Add up to 20 JPG, PNG or WebP files.
- Choose a percentage, maximum width or same canvas dimensions, and set JPG/WebP export quality.
- Select Resize images, inspect the resulting pixel dimensions, then download individual files or the complete ZIP.
Worked example: prepare photos for a website
A 4000 × 3000 photo at 50% becomes 2000 × 1500 pixels. With a maximum width of 1200 pixels, it becomes 1200 × 900. A 600 × 400 photo stays at its original dimensions under the same maximum-width rule. Percentage scaling above 100% enlarges pixels but cannot recover missing detail.
Resize multiple images to the same dimensions online
Choose Same canvas dimensions and enter a width and height from 64 to 4096 pixels. Every output has those canvas dimensions. Each photo fits proportionally without cropping or enlargement: a 4000 × 3000 photo on a 1200 × 1200 canvas occupies 1200 × 900 with 150-pixel top and bottom margins. JPEG margins are white; PNG/WebP margins are transparent.
Resize, compress or crop?
Resizing changes pixel dimensions and preserves aspect ratio here; it does not crop. Same canvas dimensions can produce square canvases with padding. JPG/WebP quality affects encoding and file size, but no particular kilobyte size is guaranteed. PNG quality controls do not apply to its lossless encoder. Re-encoding may change color profiles or discard animation and source metadata. Keep your originals.
Resize images in your browser without uploading
Resizing uses browser canvas on this device. The image processing flow does not upload the files. Individual exports and the ZIP are generated locally; large images can still consume substantial browser memory.
Read the batch image resizing guide for examples and a review checklist.
Related image tools
Use the EXIF and image metadata remover for a privacy-focused export, or add a batch watermark for visible attribution. Smaller files also reduce upload time. See our privacy policy and the browser canvas export method.