How do I convert X3F to JPG?

Upload your X3F 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 X3F 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.

X3F or JPG: which should I use?

Use X3F 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.

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 JPG without Photoshop or Lightroom?

Yes. The X3F 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 X3F 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 X3F to JPG — Free Online X3F Converter

Convert X3F to JPG 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 JPG?

JPG is supported far more widely than X3F, 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 X3F 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 X3F to re-edit exposure later.

X3F vs JPG

機能	X3F	JPG
氏名	Sigma camera RAW	JPEG (Joint Photographic Experts Group)
Origin	Written by Sigma 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 X3F 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 X3F to JPG?: Upload your X3F 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 X3F 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.
X3F or JPG: which should I use?: Use X3F 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 X3F file?: 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 JPG without Photoshop or Lightroom?: Yes. The X3F 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 X3F 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.

X3FからJPG でできること

始める前に、主な機能を確認してください。

Sigma X3F RAW ファイルを JPG に変換する
生のセンサーショットを標準写真に変換する
JPG 品質を設定してファイルサイズを制御する
JPG の背景の塗りつぶし色を選択します
複数の X3F ファイルを一度にバッチ変換します
RAW 画像から広くサポートされている JPG を作成する

このツールを使用する

設定リファレンス

X3FからJPG 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).