All tools
JPG to PNG
Convert a JPG image to lossless PNG with no upload.
Select an image
Click to choose, or drop a file here
Related PDF tools
PNG to JPGConvert a PNG to a smaller JPG — transparency is flattened onto white.JPG to WebPConvert a JPG to the smaller, modern WebP format.Compress ImageShrink a JPG, PNG or WebP to a smaller file — by quality or a target size.Resize ImageScale an image to a percentage or an exact pixel width, right in your browser.
JPG to PNG — frequently asked questions
Will converting JPG to PNG improve quality?+
No. PNG is lossless, so it won't add back detail the JPG already discarded — but it won't lose any more, which helps if you plan to edit further.
Why is the PNG bigger than the JPG?+
PNG stores every pixel exactly, with no lossy compression, so photos are typically 2–5× larger than the JPG.
你们会把我的文件上传到服务器吗？+
不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。
有文件大小限制吗？+
我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。
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