1단계: 파일을 업로드하세요 JPG 위 버튼을 사용하거나 드래그 앤 드롭으로 파일을 이동하세요.
2단계: '변환' 버튼을 클릭하여 변환을 시작하세요.
3단계: 변환된 파일을 다운로드하세요 PNG 파일
JPG 에 PNG 변환 FAQ
{# Per-pair FAQ synthesizer (png/faq_synth.py).
Branches on raster/vector, lossy/lossless, alpha-channel,
animation, and codec family so 831 conversion pairs ship
substantively different FAQ content. Documented in
~/seo/playbook/02-faq-synthesizer-pattern.md. #}
What does the JPG to PNG converter do?
+
JPG is already lossy-compressed, so converting to PNG does not magically restore detail — it just stores the existing pixels without further loss. PNG is a good choice when you plan to edit the image further and want each save to preserve quality.
Will my PNG have a transparent background?
+
JPG files have no alpha channel, so the result will have a solid background. To get transparency in PNG, use the Remove Background tool on the PNG output.
Is the JPG to PNG conversion reversible?
+
You can convert the PNG back to JPG on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
Will the PNG be larger than the JPG?
+
Yes — lossless containers store every byte. Expect the PNG to be 3-8x the size of the JPG. The benefit is no further quality loss on editing or re-encoding.
Is there a file-size limit when converting JPG to PNG?
+
Anonymous uploads are capped at a generous default; signed-in free accounts get a higher cap, and Pro accounts have no per-file limit. Browser memory is usually the practical constraint long before our server-side limits kick in.
Can I batch-convert several JPG files to PNG at once?
+
Yes. Drop or pick multiple JPG files in one upload — the converter processes them in parallel and returns a ZIP of the PNG results. There is no need to repeat the upload step per file.
What happens to my JPG files after the conversion?
+
Uploaded files and PNG outputs are auto-deleted after a short retention window. We do not inspect, share, or train on user files. Direct download links are time-limited and tied to your session.
Where can I open a PNG file?
+
PNG opens natively in every modern browser, every image viewer, and every photo-editing app. No additional software is needed.
Do I need to install software to convert JPG to PNG?
+
No. The converter runs entirely in your browser plus our cloud — no plugin, no install, no admin rights. It works on Windows, macOS, Linux, ChromeOS, iOS, and Android.
Do I need an account to convert JPG to PNG?
+
No. JPG to PNG conversion is free and works without an account. Signing in unlocks higher file-size caps, batch history, and API access.
Is there an API for JPG to PNG conversion?
+
Yes. Every conversion this site offers is also exposed via a JSON API — see /api/ for endpoints, authentication, and rate limits. JPG to PNG is one of the supported pairs.
What if my JPG fails to convert to PNG?
+
Failures are usually caused by corrupted source files or unsupported JPG variants. Re-export from the original app and try again; if it still fails, the contact page forwards the file to support so we can diagnose.