MiniPNG

PNG to JPG Converter

Convert your PNG images to JPG online — free, fast, and a much smaller file size.

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Convert PNG to JPG online, free

A photograph saved as a PNG is almost always far larger than it needs to be. PNG stores every pixel exactly, which is the right choice for a logo or a screenshot and the wrong one for a photo — and it is why a picture that arrives as a PNG can be many times the size of the same picture as a JPG with no visible difference. Converting to JPG is usually the single fastest way to make an image small enough to email, upload, or put on a page.

Choosing a quality level

Three levels cover the decision without making you guess at a number. Best quality stays as close to the source as JPEG allows, for archiving or anything headed to print. Recommended is the default and shows no visible loss on a normal photograph — it is the right answer unless you have a reason to move. Smallest file trades a little sharpness for the smallest result, which is what you want for email attachments and web pages where every kilobyte counts.

What happens to transparency

This is the one real catch, and it is worth understanding before you convert. JPEG has no alpha channel at all — the format simply cannot store a transparent pixel. Transparent areas in your PNG are filled with white here. That matters most for logos, stickers, and screenshots with rounded corners: if the design assumed a transparent background, the JPG will show white where the background used to be. If you need the transparency to survive, JPG is the wrong destination and there is a better one below.

Colours that stay consistent

The colour profile in your PNG is kept by default rather than discarded, so the JPG looks like the file you uploaded instead of drifting. If the image is going on the web, switch to Convert to sRGB and it will render the same way in every browser rather than depending on how each one interprets an unfamiliar profile.

Converting a folder at a time

Upload up to 100 PNGs at once from your device, Google Drive, or a direct URL. Original filenames are kept so a batch comes back organised. Files are deleted from the servers within an hour, and you can delete any of them yourself immediately.

What you get

  • A dramatically smaller file than the PNG you uploaded
  • Three clear quality levels instead of an arbitrary number
  • Transparent areas filled with white rather than turned black or rejected
  • Your colour profile kept, or converted cleanly to sRGB for the web
  • Up to 100 files per batch with original filenames preserved
  • No account, no watermark, and files deleted within an hour

What's next?

If the transparency mattered after all, Convert PNG to WebP shrinks the file while keeping the alpha channel intact. Need to go back the other way for a lossless master? Convert JPG to PNG does that. And if the JPG is still larger than you need, Compress JPG takes it down further without changing format.

常见问题

For a photograph, dramatically smaller — PNG was never built for photos, and JPEG is. The exact drop depends on the image and the level you pick, with Smallest file giving the biggest reduction and Best quality the smallest.

They are filled with white. JPEG has no alpha channel, so transparency cannot be carried across in any form. That is better than the common alternatives — some converters error out on a transparent PNG, others silently paste it onto black — but if the transparency is load-bearing, convert to WebP instead.

Recommended, unless you have a reason not to. It shows no visible loss on a normal photograph. Move to Best quality for archiving or print, and to Smallest file when the image is going in an email or on a page where size matters more than the last few percent of sharpness.

It works, but JPEG's compression is built for photographs and shows more artifacting around sharp edges and flat blocks of colour. Text and hard edges stay cleaner at the Best quality level. For that kind of image, WebP or keeping the PNG is usually the better answer.

No. The colour profile is preserved by default, so the JPG matches the PNG you uploaded. Choose Convert to sRGB if the image is headed for the web and you want it identical in every browser.

Yes, up to 100 images per batch, from your device, Google Drive, or a direct URL, and your original filenames are kept.

使用 PNG to JPG 快速又简单:从您的设备、Google Drive 或直接链接上传最多 100 个文件(.png),根据需要调整设置,然后点击“PNG to JPG”按钮。您的文件将在几秒钟内处理完成,可立即下载。

当然。您的文件通过安全加密连接(HTTPS)上传并自动处理——没有任何人会查看它们。所有文件将在 1 小时内自动从我们的服务器删除,您也可以随时通过垃圾桶图标立即手动删除任何文件。

是的!PNG to JPG 完全免费。无需注册、无需邮箱、没有隐藏费用——只需上传文件并下载结果即可。

无需下载或安装任何软件。MiniPNG 完全在浏览器中在线运行,可在任何设备上使用——Windows、Mac、Linux、Android 或 iOS。

每个文件最大可上传 200MB。此限制可确保所有用户都能获得快速可靠的处理体验。

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