Image Resizer
Resize an image to exact pixel dimensions while optionally preserving aspect ratio.
Use Image Resizer
How to use this tool
- Choose an image to load its current width and height.
- Keep Preserve aspect ratio selected for proportional resizing, then enter a new width or height.
- Select Process image and verify the downloaded dimensions.
Avoid stretching your image
The aspect ratio is the relationship between width and height. Preserving it keeps people and objects in proportion. If a destination requires a different shape, crop the image before resizing. Enlarging a small image adds pixels but does not recover detail that was absent from the source.
Example
A 2400 × 1600 image resized proportionally to 1200 pixels wide becomes 1200 × 800.
Questions about this tool
Is resizing the same as compression?
Resizing changes pixel dimensions. Compression changes encoding or quality. You can use both when preparing an image for upload.
What format will the download use?
The current tool saves PNG input as PNG and other supported inputs as JPEG. Check the output file before sharing it.
Related tasks
About Image Resizer
Resize an image to exact pixel dimensions while optionally preserving aspect ratio with a focused online interface designed to help you complete this task quickly on Costovia.
How to use Image Resizer
- Choose a supported image file and set any size, quality, crop or format options.
- Run the image operation and preview the result when available.
- Download the processed image and check dimensions, quality and format before publishing.
Example
Example: use a sample input first to confirm that Image Resizer produces the format or result you expect before processing important content.
What to check
Image output can change dimensions, format, compression or quality depending on the selected operation; review the result before publishing.
Frequently asked questions
What does Image Resizer do?
Resize an image to exact pixel dimensions while optionally preserving aspect ratio.
How do I use the image resizer?
Enter the values, text or files requested by Image Resizer, choose any relevant options, run the tool, and review the result before copying or downloading it.
Will the image quality change?
Some image operations can change dimensions, compression, format or quality. Review the downloaded image before publishing it.