Quick proportional shrink.
Slide the scale to halve your batch, quarter it, or double a tiny source. Aspect ratio stays exact — nothing skews.
Resize · Private · Bulk
Resize images, privately, in your browser.
Drop one image or a hundred. Scale by percentage, hit an exact pixel size, or fit everything to a max long side. Nothing uploads.
Drop images to resize
or browse — PNG, JPG, WebP, GIF, SVG, TIFF
Leave one side blank to keep aspect ratio.
Shrinks images so their long edge fits the limit. Smaller images are left alone.
Quick presets
Output format & quality jpg · webp · png
"Same" keeps each file in its source format.
For JPG / WebP outputs only.
White (#ffffff)
Your files never leave this page. Resizing happens inside your browser — no uploads.
Hit an exact dimension.
Type a target width and height. Leave one side blank to keep the aspect ratio. The lock toggle keeps both sides in sync as you type.
Cap the long side.
"Long side ≤ 1920" is the standard ask for blog images, email attachments and image-board uploads. Images already smaller pass through untouched.
Resizing, plain answers.
Does PixelMorph upload my images when I resize them?
No. Every pixel stays on your device. The resize happens in your browser using the Canvas API — there is no upload step, no server, and no analytics on file contents.
Is there a file-size or batch limit?
No hard limit. Browsers cap individual canvas dimensions (~16,384 px per side in Chrome), and very large batches will be bounded by your device's memory, but there's no PixelMorph-imposed cap.
Can I bulk-resize many images at once?
Yes. Drop as many images as you want, pick a resize mode, and hit "Resize all". You can download each file individually or grab the full batch as a single ZIP.
Will resizing lose quality?
Downscaling is essentially lossless visually — we use high-quality bicubic sampling. Upscaling re-creates pixels that weren't there, so very large enlargements will soften the image. For lossy output formats (JPG / WebP), the quality slider controls the encoder.
What does "long side" mean?
It's the longer of width or height. "Long side 1920" means: shrink the image so its longest dimension is exactly 1920 pixels, keeping the original aspect ratio. The short side scales proportionally.