How do I convert X3F to PNG?

Upload your X3F file above. It is converted to PNG automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.

Does converting X3F to PNG lose quality?

No. Both formats are lossless, so every pixel is kept exactly.

X3F or PNG: which should I use?

Use X3F for adjusting exposure and white balance with maximum latitude. Use PNG for screenshots, logos, text graphics and cut-outs. Keep in mind the main drawback of PNG: large files for photographs.

什么是 X3F 文件？

X3F is the RAW format of Sigma cameras with Foveon sensors, from the SD and DP series to the Quattro models. It stores the unprocessed sensor data for maximum editing latitude, so most apps can't show it as a normal picture.

Can I convert X3F to PNG without Photoshop or Lightroom?

可以。X3F 文件在我们的服务器上打开，因此您无需安装 Photoshop 或 Lightroom 或任何其他软件。上传文件，然后下载转换好的 PNG。

Is the X3F to PNG converter free?

Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

Convert X3F to PNG — Free Online X3F Converter

Convert X3F to PNG online at full resolution. Open camera RAW files without Photoshop or Lightroom; preview one free or batch-convert with Premium.

Drop your X3F file or click to browse

Why convert X3F to PNG?

PNG is supported far more widely than X3F, so the file is easier to open, share and upload.
PNG is made for screenshots, logos, text graphics and cut-outs.
No Photoshop or Lightroom needed: the file is opened on our servers and you download a ready-to-use PNG.

What to expect when converting X3F to PNG

RAW 文件会按您相机的白平衡以全分辨率显影。请保留原始 X3F，以便日后重新调整曝光。
您原来的 X3F 文件不会被更改：您下载的是一份新的 PNG 副本。

X3F 与 PNG 对比

功能	X3F	PNG
全名	适马相机 RAW	便携式网络图形
来源	由适马相机生成	Published as a W3C standard in 1996
压缩	未经处理的传感器数据	无损
透明度	否	Yes — smooth, partial transparency
动画	否	否
颜色	12 to 16 bits per channel from the sensor	每通道最高 16 位
可用什么打开	RAW editors such as Lightroom; not browsers or most apps	All browsers, phones, computers and image editors
最适合	adjusting exposure and white balance with maximum latitude	screenshots, logos, text graphics and cut-outs
主要缺点	文件非常大，多数应用都打不开	large files for photographs

In short: choose X3F for adjusting exposure and white balance with maximum latitude; choose PNG for screenshots, logos, text graphics and cut-outs.

Frequently asked questions

How do I convert X3F to PNG?: Upload your X3F file above. It is converted to PNG automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
Does converting X3F to PNG lose quality?: No. Both formats are lossless, so every pixel is kept exactly.
X3F or PNG: which should I use?: Use X3F for adjusting exposure and white balance with maximum latitude. Use PNG for screenshots, logos, text graphics and cut-outs. Keep in mind the main drawback of PNG: large files for photographs.
什么是 X3F 文件？: X3F is the RAW format of Sigma cameras with Foveon sensors, from the SD and DP series to the Quattro models. It stores the unprocessed sensor data for maximum editing latitude, so most apps can't show it as a normal picture.
Can I convert X3F to PNG without Photoshop or Lightroom?: 可以。X3F 文件在我们的服务器上打开，因此您无需安装 Photoshop 或 Lightroom 或任何其他软件。上传文件，然后下载转换好的 PNG。
Is the X3F to PNG converter free?: Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

使用 X3F 转 PNG 可以做什么

在开始之前查看主要功能。

将 Sigma X3F RAW 文件转换为 PNG
无损 PNG 输出，保持完整画质
无需专用软件即可打开 RAW 照片
成批转换多个 X3F 文件
随时随地分享和编辑 RAW 照片

使用这个工具

设置参考

X3F 转 PNG 的可用控件。

设置

输出格式下拉框: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.选项: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
质量滑块范围: 20–100 · 默认: 90: For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
无损模式开／关: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
背景填充取色器: 适用于无法存储透明度的 JPG、BMP 和图片转 PDF 输出：用于填充透明区域的颜色（默认为白色）。