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.

X3Fファイルとは？

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?

はい。X3Fファイルは当社のサーバーで開かれるため、PhotoshopまたはLightroomやその他のソフトをインストールする必要はありません。ファイルをアップロードして、完成したPNGをダウンロードしてください。

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ファイルはカメラのホワイトバランスでフル解像度で現像されます。後で露出を編集し直せるよう、元のX3Fは保管しておいてください。
元のX3Fファイルは変更されません。新しいPNGのコピーをダウンロードします。

X3FとPNGの比較

機能	X3F	PNG
氏名	SigmaカメラのRAW	Portable Network Graphics
由来	Sigmaカメラで記録	Published as a W3C standard in 1996
圧縮	未処理のセンサーデータ	ロスレス
透過	いいえ	Yes — smooth, partial transparency
アニメーション	いいえ	いいえ
色	12 to 16 bits per channel from the sensor	チャンネルあたり最大16ビット
開けるアプリ	RAW editors such as Lightroom; not browsers or most apps	All browsers, phones, computers and image editors
こんな方に最適	adjusting exposure and white balance with maximum latitude	screenshots, logos, text graphics and cut-outs
主な欠点	ほとんどのアプリで開けない非常に大きなファイル	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.
X3Fファイルとは？: 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?: はい。X3Fファイルは当社のサーバーで開かれるため、PhotoshopまたはLightroomやその他のソフトをインストールする必要はありません。ファイルをアップロードして、完成したPNGをダウンロードしてください。
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.

X3FからPNG 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 PNG に変換
ロスレス PNG 出力で最高の品質を維持
特別なソフトウェアを使用せずに RAW 写真を開く
多数の X3F ファイルをまとめてバッチ変換します
RAW ショットをどこでも共有および編集

このツールを使用する

設定リファレンス

X3FからPNG 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: 透過を保存できないJPG、BMP、画像からPDFへの出力用：透明な部分を塗りつぶす色（既定は白）。