img
image
format
.org
Tools
Image Tools
jpg
Image Compressor
Reduce PNG / JPG / WebP size
fmt
Format Converter
JPG ↔ PNG ↔ WebP
px
Image Resizer
Resize to exact dimensions
PDF
pdf
Images → PDF
Merge images to PDF
img
PDF → Images
Extract PDF pages
i
About
imageformat.org
📐
Image Resizer —
Resize Images Free Online
Browser-local · No upload
·
Exact px · % scale · Max width
·
Aspect ratio lock
📐
Drop images to resize
All image formats ·
Batch supported
· Aspect ratio lock
Resize settings
Mode
Exact pixels
Percentage
Max width
W
🔒
H
Scale %
Max width px
📐 Resize All
✕ Clear
More Tools
🗜
Image Compressor
Reduce file size, batch support
→
🔄
Format Converter
Convert JPG ↔ PNG ↔ WebP
→
📄
Images → PDF
Merge images into a PDF
→
🖼
PDF → Images
Extract PDF pages as images
→
FAQ
How do I resize without distortion?
Enable the aspect ratio lock (🔒) and enter either width or height — the other value is calculated automatically to prevent stretching.
What are the three resize modes?
Exact pixels: set precise W×H. Percentage: scale proportionally (50% = half size). Max width: cap the width while auto-maintaining ratio.
Can I batch resize to the same dimensions?
Yes. Set your target dimensions, drop multiple files, and all will be resized to the same specification in one click.
Will upscaling improve image quality?
No. Upscaling interpolates new pixels and cannot recover detail. Downscaling is safe and preserves quality.
What output format will I get?
The output format matches the input. JPG input → JPG output, PNG → PNG, etc.
Are my images uploaded anywhere?
No. All resizing runs locally in your browser. Your images never leave your device.