Can I convert MOS to ICO on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert MOS to ICO on your phone or computer without installing an app.

Is there a free MOS to ICO converter with no sign-up?

Yes, this one. Converting MOS to ICO on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert MOS to ICO without losing quality?

Yes. ICO is a lossless format, so your converted file is pixel-for-pixel the same as the MOS. (It can't add back detail the original never had.)

Can I batch convert MOS to ICO?

Yes. Add up to 30 MOS files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload MOS files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

MOS to ICO Converter

Convert MOS images to ICO online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your MOS files onto the converter
2
Press Convert to turn them into ICO
3
Download your ICO images one by one or as a ZIP

MOS to ICO

Why convert MOS to ICO?

The main difference: MOS is an unprocessed sensor data format, while ICO is a lossless format. ICO can have a transparent background, MOS can't.

Develop RAW into a ready-to-use photo

A MOS file holds the raw readings from the camera sensor, not a finished picture. Converting it to ICO applies the camera's colors and gives you a normal photo you can share, print or post right away.

Supports transparent backgrounds

ICO can hold a transparent background. Convert your image first, then cut out the background or place it on top of other designs.

Create a favicon or app icon

ICO is the icon format every browser and Windows understands. Convert a square MOS to get a favicon for your site or an icon for a desktop shortcut.

MOS vs ICO: what's the difference?

Property	MOS	ICO
Compression type	Unprocessed sensor data	Lossless (exact pixels, larger files)
Transparent background	No	Yes
Animation	No	No
Where it opens	None (needs a RAW editor)	All browsers as a site icon
Used for	Straight-from-camera photos for editing	Website favicons and Windows icons

What is an MOS (camera RAW) file?

MOS is the camera RAW format of Leaf - Leaf medium-format digital backs. Instead of a finished photo, a RAW file stores the unprocessed data straight from the camera's sensor.

That gives photographers maximum room to adjust exposure, white balance and color afterwards, but RAW files are large (often 20-60 MB) and need special software to view. Converting to JPG produces a normal photo you can share right away.

How to open an MOS (camera RAW) file

Capture One opens MOS files, and Adobe Lightroom, Photoshop (Camera Raw), Capture One, darktable and RawTherapee support them too. Mac Photos and Preview open most RAW formats; on Windows, the free Raw Image Extension adds support to the Photos app. Without any of these, convert MOS to JPG online.

Extension: .mos
Made by: Leaf cameras
Contains: Unprocessed sensor data
Best for: Editing straight-from-camera photos

What is an ICO file?

ICO is the icon format of Microsoft Windows and the classic format for website favicons - the little image in a browser tab. One ICO file can hold several sizes (16 × 16, 32 × 32, 48 × 48 and more), so the icon looks sharp everywhere.

ICO supports transparency, so icons can have rounded or irregular shapes. Modern sites often add PNG and SVG favicons too, but favicon.ico is still the universal fallback.

How to open an ICO file

Windows shows ICO files in File Explorer and opens them in Photos; Mac Preview opens them too. GIMP and online editors can edit them. To make one, convert a square PNG - or use the Favicon Generator for a complete set.

Extension: .ico
Sizes: Several in one file (16-256 px)
Transparency: Yes
Best for: Favicons, Windows icons