Image Conversion
Convert PNG to JXL Online — Free
Fast, free PNG to JXL converter. No registration required.
或从以下导入
200万+文件已转换
数千用户的信赖之选
安全传输
HTTPS 加密上传
隐私优先
文件处理后自动删除
无需注册
即刻开始转换
随处可用
任何浏览器，任何设备
如何转换
1
Upload your .png file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .jxl file when it's ready.
什么是 PNG？
PNG is a lossless image format that supports transparency. It's ideal for graphics, logos, and images requiring sharp edges or transparent backgrounds.
格式详情
- 全称
- Portable Network Graphics
- 扩展名
- .png
主要特点
- Lossless quality
- Transparency support
- Sharp edges
- Web optimized
什么是 JXL？
JPEG XL is a next-generation image codec offering superior compression and quality. Supports both lossy and lossless compression.
格式详情
- 全称
- JPEG XL
- 扩展名
- .jxl
主要特点
- Next-gen compression
- Lossy and lossless
- HDR support
- Progressive decode
PNG 与 JXL 对比
| 特性 | PNG | JXL |
|---|---|---|
| 全称 | Portable Network Graphics | JPEG XL |
| 扩展名 | .png | .jxl |
| 最适合 | Lossless quality | Next-gen compression |
常见问题
Converting between lossless formats (PNG, BMP, TIFF) preserves perfect quality. For lossy formats like JPG and WebP, you can adjust the quality slider to control compression. Default settings prioritize visual quality.
Transparency is preserved when converting to formats that support it (PNG, WebP, TIFF, GIF). If the target format doesn't support transparency, a white background is applied.
Yes. Upload your HEIC files and convert to JPG, PNG, or WebP instantly. Perfect for making iPhone photos compatible with any device or platform.
No resolution limit. We handle images of any size — from small icons to high-resolution photos and print-ready images.
Pro users can batch convert multiple images at once. Free users can convert one image at a time. All conversions are processed on our servers, so even large files convert quickly.