JPG转PNG转换器
免费在线将JPG文件转换为PNG格式。100%私密 - 文件永远不会离开您的设备。
100%私密
所有处理都在浏览器中进行。文件永远不会离开您的设备。
闪电般快速
无需上传意味着即时处理。处理任意大小的文件。
随处可用
在任何具有现代浏览器的设备上使用。无需安装。
立即转换您的文件
将文件拖放到此处或点击浏览
支持:.jpg, .jpeg(最大 50.0 MB)
为什么将JPG转换为PNG?
PNG supports transparency, perfect for logos and graphics
Lossless compression preserves image quality
Better for images with text or sharp edges
Widely supported across all platforms and browsers
Ideal for web graphics, icons, and screenshots
No quality loss during multiple editing cycles
如何将JPG转换为PNG
上传文件
选择或拖动您的JPG文件
配置
如需要,调整设置
转换
点击转换按钮
下载
保存您的PNG文件
非常适合
Web Designers
Create transparent images for websites that blend seamlessly with any background
Logo Creation
Convert photos to PNG for transparent logo overlays and watermarks
Digital Artists
Maintain quality in artwork with lossless PNG compression
Documentation
Screenshots and diagrams look sharper in PNG format with crisp edges
常见问题
Will converting JPG to PNG improve image quality?
Converting won't add quality lost in the original JPG compression. However, PNG prevents further quality loss in future edits since it uses lossless compression.
Why are PNG files larger than JPG?
PNG uses lossless compression which preserves all image data, resulting in larger files. JPG uses lossy compression that discards some data to achieve smaller sizes.
Can I add transparency after converting to PNG?
Yes! Once in PNG format, you can use image editing software to add transparency to specific areas of your image.
如何将JPG转换为PNG?
上传您的JPG文件,如需要调整设置,点击转换,然后下载您的PNG文件。就是这么简单!
这个转换器免费吗?
是的,我们的基本转换工具完全免费。专业版用户可获得无限次转换和附加功能。
我的文件会上传到服务器吗?
不会!所有处理都直接在浏览器中进行。您的文件永远不会离开设备,确保100%隐私。