How do I convert MOS to JPG?

Upload your MOS file above. It is converted to JPG 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 JPG lose quality?

JPG is lossy, so some fine detail is discarded to make the file smaller. Raise the quality in Settings for a closer copy.

MOS or JPG: which should I use?

Use MOS for adjusting exposure and white balance with maximum latitude. Use JPG for photos you share, email, print or upload. Keep in mind the main drawback of JPG: no transparency, and every re-save loses a little more detail.

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 JPG 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 JPG.

Is the MOS to JPG 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 JPG — Free Online MOS Converter

Convert MOS to JPG 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 JPG?

JPG is supported far more widely than MOS, so the file is easier to open, share and upload.
JPG is made for photos you share, email, print or upload.
No Photoshop or Lightroom needed: the file is opened on our servers and you download a ready-to-use JPG.

What to expect when converting MOS to JPG

JPG uses lossy compression; raise the quality in Settings for a closer copy of the original.
The RAW file is developed at full resolution with your camera’s white balance. Keep the original MOS to re-edit exposure later.

MOS vs JPG

機能	MOS	JPG
氏名	Leaf camera RAW	JPEG (Joint Photographic Experts Group)
Origin	Written by Leaf cameras	Standardised in 1992
圧縮	Unprocessed sensor data	Lossy, adjustable quality
Transparency	いいえ	いいえ
アニメーション	いいえ	いいえ
色	12 to 16 bits per channel from the sensor	16.7 million colours (8 bits per channel)
Where it opens	RAW editors such as Lightroom; not browsers or most apps	All browsers, phones, computers and photo apps
こんな方に最適	adjusting exposure and white balance with maximum latitude	photos you share, email, print or upload
Main drawback	very large files that most apps can’t open	no transparency, and every re-save loses a little more detail

In short: choose MOS for adjusting exposure and white balance with maximum latitude; choose JPG for photos you share, email, print or upload.

Frequently asked questions

How do I convert MOS to JPG?: Upload your MOS file above. It is converted to JPG 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 JPG lose quality?: JPG is lossy, so some fine detail is discarded to make the file smaller. Raise the quality in Settings for a closer copy.
MOS or JPG: which should I use?: Use MOS for adjusting exposure and white balance with maximum latitude. Use JPG for photos you share, email, print or upload. Keep in mind the main drawback of JPG: no transparency, and every re-save loses a little more detail.
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 JPG 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 JPG.
Is the MOS to JPG 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.

MOSからJPGへでできること

始める前に、主な機能を確認してください。

Leaf MOS RAW ファイルを共有可能な JPG に変換する
生のセンサーデータを日常の写真に変える
JPG の品質を調整してファイルサイズを小さくする
透明な領域を選択した色で塗りつぶします
複数の MOS ファイルをバッチでまとめて変換します
JPG を投稿、電子メール、印刷できるように準備します

このツールを使用する

設定リファレンス

MOSからJPGへで使用可能なコントロール。

設定

出力形式ドロップダウン: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.オプション: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
品質スライダーレンジ: 20–100 · デフォルト: 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.
ロスレスモードオン/オフ: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
背景の塗りつぶしカラーピッカー: For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).