PNG to JPG 온라인 변환기

PNG 파일을 JPG 형식으로 3번의 간단한 클릭으로 변환하세요.

JPG⌄

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⚙ 선택적 설정

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Color Filter

DPI

dpi

Crop (px)

PNG vs JPG: 완전한 형식 가이드

PNG

Lossless

압축

JPG

Lossy

PNG

Full 8-bit alpha channel — each pixel can be any opacity level from fully transparent (0) to fully opaque (255)

투명도

JPG

Not supported — transparent areas always render as solid white or the specified matte color

PNG

Not in standard PNG; APNG (Animated PNG) is a non-standard extension with limited, inconsistent support

애니메이션

JPG

Not supported

PNG

24-bit RGB (16.7M colors) or 32-bit RGBA (16.7M colors + full alpha); up to 48-bit for professional workflows

색 깊이

JPG

24-bit (8 bits per channel: RGB) — up to 16.7 million colors

PNG

100 KB – 10 MB — significantly larger than JPG for photographic content

파일 크기

JPG

50 KB – 5 MB per image depending on resolution and quality setting

PNG

Universal — all modern browsers, operating systems, and devices including IE7+

브라우저 지원

JPG

Universal — all browsers, all operating systems, all devices including IE6 and older smartphones

PNG

Graphics, logos, UI

최적 용도

JPG

Photos, web images

일반적인 사용 사례: PNG → JPG

📸 Web photography publishing📧 Email photo attachments📱 Social media image posts🖨️ Online photo printing🛒 Product photography catalogs📰 Blog and editorial images

⚠️Transparent areas in the source PNG will become solid white in the converted JPG output. Only convert PNG images without transparency. For transparent graphics intended for web use, WebP is a far better target format.

Format

PNG

PNG was created in 1996 as a free, patent-unencumbered alternative to GIF after Unisys enforced its LZW compression patent. The PNG Development Group introduced full-color support, genuine alpha trans…

장점

+Lossless — every pixel preserved with zero compression artifacts

+Full 8-bit alpha channel for smooth, semi-transparent edges

+Ideal for text, logos, and graphics where sharpness is non-negotiable

+Unlimited re-saves without any quality degradation whatsoever

단점

−3–5× larger than JPG for photographic content

−No native animation support in standard PNG

−Slower to load than WebP for equivalent image content

−Not practical for very high-resolution photographs at web scale

Logos, icons, and brand marks placed over any background colorScreenshots where text must remain perfectly sharpImages edited in multiple passes (keep as the master file)Web UI elements, buttons, icons, and interface assets

Format

JPG

Standardized in 1992 by the Joint Photographic Experts Group, JPEG became the internet's dominant image format through the 1990s. Its DCT compression made digital photography practical for early web a…

장점

+Smallest file sizes for photographs (10:1 to 20:1 compression ratio)

+Universal compatibility across every device, software, and platform

+Embeds EXIF metadata (GPS, camera settings, date/time)

+Adjustable quality/size trade-off at save time

단점

−Lossy — permanently discards image data with every save

−No transparency — backgrounds are always solid

−Visible block artifacts on sharp edges, text, and high-contrast areas

−Quality degrades with each re-save (generational quality loss)

Sharing photographs on social media, email, or blogsCamera images where file size matters more than pixel perfectionWeb page photos where page load speed is the priorityAny context requiring maximum cross-device and software compatibility

PNG에서 JPG: 알아야 할 것

PNG는 그래픽에 이상적인 무손실 형식이지만 웹사이트와 응용 프로그램을 느리게 하는 큰 파일을 생성합니다. PNG를 JPG로 변환하면 사진 콘텐츠에서 눈에 띄는 품질 손실을 최소화하면서 파일 크기를 60-80% 줄이는 지능적인 압축이 적용됩니다.

왜 PNG을 JPG로 변환하나요?

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더 빠른 웹사이트

JPG 파일은 사진의 경우 PNG보다 훨씬 빠르게 로드되어 사이트 성능 점수를 향상시킵니다.

저장 효율성

5MB PNG 사진이 JPG로 500KB로 압축되어 저장 공간의 90%를 절약할 수 있습니다.

💾

📷

사진 표준

DSLR 카메라, 스톡 포토 사이트, 사진 서비스는 모두 JPG를 기본 배포 형식으로 사용합니다.

인쇄 호환성

사진 현상소와 주문형 인쇄 서비스는 모든 인쇄 작업에 JPG를 보편적으로 수락합니다.

🖨️

PNG

파일 확장자.png
설명PNG (Portable Network Graphics) is a lossless raster image format that supports transparency. Ideal for graphics, logos, icons, and images that require a transparent background.
관련 프로그램Adobe Photoshop, GIMP, Microsoft Paint, Preview (Mac)
개발사PNG Development Group
MIME 유형image/png

JPG

파일 확장자.jpg
설명JPEG (Joint Photographic Experts Group) is the most widely used lossy image compression format, ideal for photographs and complex images with many colors. JPEG achieves small file sizes by discarding some image data, making it perfect for web use and sharing.
관련 프로그램Adobe Photoshop, GIMP, Windows Photo Viewer, Preview (Mac)
개발사Joint Photographic Experts Group
MIME 유형image/jpeg