이미지 크기 온라인 조정
크기 조정 이미지 to exact dimensions or by percentage. 무료, in-browser, no upload.
Drop an 이미지 or 파일 찾기
What is an 이미지 resizer?
An 이미지 resizer changes the pixel dimensions of a picture — making it larger or smaller, to exact width and height values, or by a percentage of its original size. Resizing is essential when an 이미지 is too big for a web 페이지, needs to fit a specific social media dimension like 1080×1080, or should be scaled down before uploading to a service with file limits. Unlike cropping, resizing keeps the whole 이미지 and typically scales the width and height together so nothing is cut off.
This free online 이미지 resizer lets you enter a new width, a new height, a scaling percentage, or any combination of the three — leave fields empty and the tool keeps the aspect ratio for you automatically. Output is available as JPG, PNG, or WebP. Everything runs locally in your browser with the canvas API, so your 이미지 are never uploaded: change 이미지 dimensions in seconds, with no signup and no watermark.
사용 방법 use the 이미지 resizer
- Drop an 이미지 onto the box above, or click browse to pick a file.
- Enter the target width and height in pixels, or a percentage — fill in only one box to keep the aspect ratio automatically.
- Pick JPG, PNG, or WebP as the output format, click 크기 조정, and download the resized 이미지.
Frequently asked questions
Can I resize an 이미지 by percentage?
Yes — enter a percentage such as 50 to scale the 이미지 down to half its size, or 200 to double it. The width and height are both scaled by the same factor.
Does resizing keep the aspect ratio?
Yes. If you enter only a width or only a height, the other dimension is calculated automatically so the 이미지 is never stretched. Enter both values if you want an exact size, even at the cost of distortion.
Will resizing make my 이미지 blurry?
Enlarging an 이미지 always softens it because the tool must invent pixels that were never captured. Shrinking an 이미지 keeps it sharp and usually improves perceived quality by removing noise.
What formats can I export?
JPG, PNG, and WebP. Choose JPG for the smallest files, PNG when you need transparency, and WebP for the best modern web compression.