How do I convert MOS to PNG?

Upload your MOS 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 MOS to PNG lose quality?

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

MOS or PNG: which should I use?

Use MOS 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.

MOS is the RAW format of Leaf medium-format digital backs. It stores the unprocessed sensor data for maximum editing latitude, so most apps can’t show it as a normal picture.

Can I convert MOS to PNG without Photoshop or Lightroom?

Yes. The MOS file is opened on our servers, so you don’t need Photoshop or Lightroom or any other software installed. Upload the file, then download the finished PNG.

Is the MOS 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 MOS to PNG — Free Online MOS Converter

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

Drop your MOS file or click to browse

Why convert MOS to PNG?

PNG is supported far more widely than MOS, 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 MOS to PNG

The RAW file is developed at full resolution with your camera’s white balance. Keep the original MOS to re-edit exposure later.
Your original MOS file isn’t changed: you download a new PNG copy.

MOS vs PNG

功能	MOS	PNG
全名	Leaf camera RAW	Portable Network Graphics
Origin	Written by Leaf cameras	Published as a W3C standard in 1996
压缩	Unprocessed sensor data	Lossless
Transparency	否	Yes — smooth, partial transparency
动画	否	否
颜色	12 to 16 bits per channel from the sensor	Up to 16 bits per channel
Where it opens	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
Main drawback	very large files that most apps can’t open	large files for photographs

In short: choose MOS 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 MOS to PNG?: Upload your MOS 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 MOS to PNG lose quality?: No. Both formats are lossless, so every pixel is kept exactly.
MOS or PNG: which should I use?: Use MOS 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.
What is a MOS file?: MOS is the RAW format of Leaf medium-format digital backs. It stores the unprocessed sensor data for maximum editing latitude, so most apps can’t show it as a normal picture.
Can I convert MOS to PNG without Photoshop or Lightroom?: Yes. The MOS file is opened on our servers, so you don’t need Photoshop or Lightroom or any other software installed. Upload the file, then download the finished PNG.
Is the MOS 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 MOS 转 PNG 可以做什么

在开始之前查看主要功能。

将 Leaf MOS RAW 文件转换为无损 PNG
保留原始拍摄的每一处细节
获取随时随地都能查看的标准 PNG 图片
一次转换多个 MOS 文件
在任意编辑器中打开影楼 RAW 照片

使用这个工具

设置参考

MOS 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: For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).