이미지 포맷 변환기

JPG, PNG, WebP, AVIF 간 변환. 배치 변환 지원.

이미지를 여기에 놓으세요

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

온라인 이미지 포맷 변환 방법

Converting image formats with ZXZX takes just a few seconds. Follow these four simple steps to transform your images into any format you need.

Upload your images — Drag and drop your files onto the dropzone area, or click to browse your device. We support JPG, PNG, WebP, AVIF, BMP, GIF, and TIFF input formats. You can upload up to 30 files at once, each up to 20MB in size.
Select the target format — Choose your desired output format from the dropdown menu. JPG is ideal for photographs, PNG for graphics with transparency, WebP for the best web optimization, and AVIF for next-generation compression with superior quality.
Adjust quality settings — For lossy formats like JPG and WebP, you can set the output quality from 70% to 95%. Higher quality produces larger files, while lower quality reduces file size significantly. PNG conversion is always lossless regardless of this setting.
Convert and download — Click the "Convert All" button to process your images. The conversion happens entirely in your browser using the Canvas API. Once complete, download individual files or save all converted images as a ZIP archive.

이미지 포맷 비교: 어떤 포맷을 선택할까요?

Each image format has distinct advantages and ideal use cases. Understanding these differences helps you choose the right format for your needs.

JPG (JPEG)

JPG is the most widely supported image format on the web. It uses lossy compression to achieve small file sizes, making it perfect for photographs and complex images with many colors and gradients. JPG does not support transparency, so it's not suitable for logos or graphics that need to blend with different backgrounds. JPG files are universally compatible with every browser, device, and image editor.

PNG

PNG uses lossless compression, meaning no image data is lost during compression. This format excels at storing graphics, logos, icons, and screenshots where sharp edges and text clarity matter. PNG supports alpha channel transparency, allowing for semi-transparent pixels. The trade-off is larger file sizes compared to JPG, especially for photographic content. PNG is ideal when image quality cannot be compromised.

WebP

WebP is a modern image format developed by Google that offers superior compression for web images. WebP lossy files are typically 25-35% smaller than equivalent JPG files at similar quality. WebP also supports lossless compression, transparency, and animation. All major browsers now support WebP, making it an excellent choice for web development. Converting to WebP is one of the easiest ways to speed up your website.

AVIF

AVIF is the newest image format, based on the AV1 video codec. It delivers the best compression efficiency of any current format, producing files 50% smaller than JPG and 20% smaller than WebP at comparable quality. AVIF supports HDR, wide color gamut, and 10-bit color depth. Browser support is growing rapidly, with Chrome, Firefox, and Safari all supporting AVIF. This format is ideal for high-quality web images where every byte counts.

When to Convert Between Formats

Converting from PNG to JPG is useful when you have screenshots or graphics saved as PNG but need smaller files for email or web use. Converting from JPG to WebP is recommended when optimizing a website for speed. Converting to AVIF is ideal for next-generation web projects where maximum compression is needed. Converting from WebP to JPG or PNG is useful when you need compatibility with older software that doesn't support WebP.

ZXZX 이미지 변환기를 사용하는 이유

ZXZX provides a fast, secure, and completely free image conversion experience. Unlike online converters that upload your files to remote servers, ZXZX processes everything locally in your browser. This means your images are never transmitted over the internet, eliminating any risk of data interception or unauthorized access.

Our converter supports batch processing, allowing you to convert up to 30 images simultaneously. This is particularly useful for web developers optimizing image assets or photographers preparing images for different platforms. The ZIP download feature lets you save all converted files in a single archive for convenience.

ZXZX maintains the original image dimensions during conversion. If you need to resize images as well, use our Image Resizer tool after conversion. All ZXZX tools work together seamlessly, so you can compress, convert, resize, and optimize your images in any order.

자주 묻는 질문

이미지 변환기가 정말 무료인가요?

Yes, ZXZX is completely free with no hidden costs, no watermarks, and no registration required. You can convert unlimited images without any restrictions. There are no premium tiers or paywalls — every feature is available to all users.

포맷 변환이 이미지 품질을 바꾸나요?

Converting between lossy formats (JPG, WebP) involves re-encoding, which may cause minor quality loss. Converting to lossless formats (PNG) preserves all quality. For most web uses, converting at 85-95% quality produces visually identical results. We recommend keeping your original files as backups.

웹 이미지에 가장 좋은 포맷은 무엇인가요?

WebP is currently the best format for web images due to its excellent compression and universal browser support. For maximum compatibility, use JPG for photographs and PNG for graphics with transparency. If your audience uses modern browsers, AVIF offers the smallest file sizes.

모바일에서도 사용할 수 있나요?

Yes, ZXZX works perfectly on mobile browsers including Chrome and Safari on iOS and Android. The responsive interface adapts to smaller screens, and all conversion features are fully functional on mobile devices.

업로드한 이미지가 서버에 저장되나요?

No. All image processing happens directly in your browser using JavaScript and the Canvas API. Your files are never uploaded to any server. When you close the page, all data is automatically cleared. ZXZX is one of the most privacy-focused image tools available.