이미지 리사이저

픽셀 또는 퍼센트로 이미지 크기 조정. 비율 유지.

이미지를 여기에 놓으세요

또는 클릭하여 파일 선택 • JPG, PNG, WebP • 파일당 최대 20MB, 최대 30개

온라인 이미지 리사이즈 방법

ZXZX Image Resizer makes it easy to resize your images to the exact dimensions you need. Here's how to get started in three simple steps.

Upload your images — Drag and drop your JPG, PNG, or WebP files onto the dropzone, or click to browse your device. You can upload up to 30 images at once for batch resizing. Each file can be up to 20MB.
Set your target dimensions — Enter the desired width and/or height in pixels. With the aspect ratio lock enabled, the height automatically adjusts when you change the width, and vice versa. You can also switch to percentage mode to scale images proportionally — for example, setting 50% will reduce both dimensions by half.
Resize and download — Click "Resize All" to process your images. The resizing happens instantly in your browser using the Canvas API. Preview the results, then download individual files or save everything as a ZIP archive.

이미지 리사이즈 활용 사례

Image resizing is one of the most common image editing operations. Here are the most popular reasons people resize their images online.

Social Media Profile Pictures and Covers

Every social media platform requires specific image dimensions. Instagram profile pictures need 320x320 pixels, Facebook cover photos need 820x312, and Twitter headers need 1500x500. Resizing your images to these exact dimensions ensures they display correctly without cropping or distortion. ZXZX lets you enter precise pixel values so your images fit perfectly on any platform.

Website and Blog Optimization

Uploading oversized images to your website wastes bandwidth and slows page loading. A 4000x3000 pixel photo from a modern camera is far larger than needed for web display. Resizing images to their display dimensions — typically 1200-2000 pixels wide for blog posts — dramatically reduces file size while maintaining visual quality. Combined with our compression tool, you can achieve optimal web performance.

Email Attachments

Many email providers limit attachment sizes to 10-25MB. High-resolution photos from smartphones often exceed these limits. Resizing images to 1024-1920 pixels wide reduces file size by 70-90% while still looking great on screens. This makes sharing photos via email fast and reliable.

E-commerce Product Images

Online marketplaces like Amazon, eBay, Shopify, and Etsy have specific image size requirements. Most require images of at least 1000x1000 pixels for zoom functionality, but uploading unnecessarily large images increases page load times. Resize your product images to the recommended dimensions for each platform to balance quality and performance.

Thumbnail Generation

Creating thumbnails for video previews, gallery grids, or image catalogs requires consistent small dimensions. Batch resizing allows you to generate hundreds of thumbnails at once, saving significant time compared to resizing images one by one.

Print Preparation

Preparing images for print requires specific dimensions at 300 DPI. A standard 4x6 inch print needs 1200x1800 pixels. Using ZXZX's pixel-based resizing, you can prepare images for any print format from standard photo sizes to large posters.

ZXZX가 이미지 품질을 유지하는 방법

ZXZX uses high-quality resampling algorithms to ensure resized images look sharp and clear. When reducing image dimensions, our tool properly downsamples to avoid aliasing artifacts. When increasing dimensions, it uses bilinear interpolation to produce smooth results. For best quality, we recommend reducing images rather than enlarging them, as upscaling cannot add detail that wasn't in the original.

All processing happens in your browser using the Canvas API. Your images are never uploaded to any server, ensuring complete privacy. The resized images maintain the same format as the originals unless you use our converter tool to change formats.

자주 묻는 질문

리사이즈에 제한이 있나요?

There's no strict limit, but we recommend keeping dimensions between 1 and 10,000 pixels on each side. Extremely large dimensions may cause your browser to run out of memory. For typical use cases like web images and social media, this range covers all needs.

"비율 잠금"이란 무엇인가요?

When aspect ratio is locked, changing the width automatically adjusts the height proportionally, and vice versa. This prevents images from appearing stretched or distorted. We recommend keeping this option enabled unless you specifically need non-proportional resizing.

리사이즈가 이미지 품질을 떨어뜨리나요?

Reducing image dimensions generally maintains excellent quality. Enlarging images (upscaling) may result in some softness or pixelation, as the tool cannot create detail that wasn't in the original image. For best results, resize images to smaller dimensions rather than larger ones.

모바일에서도 사용할 수 있나요?

Yes, ZXZX works on all modern mobile browsers including Chrome and Safari on iOS and Android. The interface is fully responsive and touch-friendly, making it easy to resize images from your phone or tablet.

픽셀 모드와 퍼센트 모드의 차이점은?

Pixel mode lets you enter exact width and height values in pixels. Percentage mode scales the image by a factor — for example, 50% halves both dimensions. Percentage mode is useful when you want to proportionally reduce all images in a batch regardless of their original sizes.