Resize Image
Resize images to exact pixels or a percentage
Free · No sign-up · No credits · Images stay on your device
One image at a time. Maximum input and output: 20 MB (20 MiB). Resize and compression: up to 16 million pixels, maximum 16384 pixels per side.
What this tool does
Resize an image to specific pixel dimensions or a percentage. Keep the aspect ratio for proportional scaling, or unlock it to stretch to an exact width and height. PNG output retains transparency; JPEG fills transparent areas with white.
When to use it
Use this tool when a form requires a width and height, when preparing a smaller image, or when enlarging the pixel canvas. For example, set the width to 1200 px with the ratio locked, or use 50% to halve both dimensions.
How to use this tool
- Choose an image
- Choose pixels or percentage. Enter the dimensions or scale, select the aspect-ratio setting, and choose PNG or JPEG output.
- Process image
- Download image
Formats and limits
- Input formats
- JPEG, PNG, WebP (still images only)
- Output formats
- JPEG, PNG
- Maximum input and output file size
- 20 MiB (20,971,520 bytes)
- Pixel limits for compression and resizing
- ≤ 16,000,000 px (total pixels); ≤ 16384 px (per side)
- File size units
- KB (1024 bytes); MB (1024² bytes)
- Price and privacy
- Free · No sign-up · No credits · Images stay on your device
Pixel mode accepts positive whole numbers. With the aspect ratio locked, the other dimension is rounded to the nearest whole pixel. Percentage mode rounds both dimensions and uses a minimum of one pixel. A pixel size does not guarantee a particular KB or MB size.
Choose the right image tool
Compress Image
Compress images to a target KB or MB limit
Resize Image
Resize images to exact pixels or a percentage
Increase Image Size
Increase JPEG or PNG file size without changing pixels
Frequently asked questions
Are my images uploaded?
No. All image processing happens in your browser. No login or credits are needed.
Is this tool free without an account?
Free · No sign-up · No credits · Images stay on your device
How precisely can I set the size?
Pixel mode accepts positive whole numbers. With the aspect ratio locked, the other dimension is rounded to the nearest whole pixel. Percentage mode rounds both dimensions and uses a minimum of one pixel. A pixel size does not guarantee a particular KB or MB size.
Will processing change image quality?
Enlarging pixels does not restore missing detail. Resize an image to specific pixel dimensions or a percentage. Keep the aspect ratio for proportional scaling, or unlock it to stretch to an exact width and height. PNG output retains transparency; JPEG fills transparent areas with white.
Which image formats are supported?
Input formats: JPEG, PNG, WebP (still images only). Output formats: JPEG, PNG. Animated images are not supported. Please choose a still image.
Why might processing fail?
Invalid dimensions or dimensions above the pixel limits cannot be processed. Choose smaller dimensions. If a PNG output exceeds the file-size limit, reduce dimensions or choose JPEG. This image is damaged or could not be decoded. Choose a non-empty image no larger than 20 MB.
RemoveHandwriting · These free browser-local image tools are separate from AI handwriting removal, which uses credits. They do not remove handwriting or restore missing detail.