How do I convert JFIF to BMP?

Upload your JFIF file above. It is converted to BMP 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 JFIF to BMP lose quality?

新たな劣化は生じません。BMPは画像をそのままの状態で保存します。JFIFの圧縮で以前に失われたディテールは復元できません。

JFIFファイルとは？

A .jfif file is a JPEG with an unusual extension; Windows and some browsers save web images this way. The picture is identical to a .jpg, but many sites and apps refuse the .jfif name.

Is the JFIF to BMP 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 JFIF to BMP — Uncompressed Bitmaps

Convert JFIF to BMP online for an uncompressed bitmap that older apps can read. No software to install. Preview one free or batch-convert with Premium.

Drop your JFIF file or click to browse

Why convert JFIF to BMP?

BMP is lossless, so the converted image loses no further detail when you edit and save it again.
BMP is made for older Windows programs, embedded devices and tools that need raw pixels.

What to expect when converting JFIF to BMP

JFIFの圧縮ですでに失われたディテールは、変換しても戻りません。BMPは現在の画像をそのまま正確にコピーしたもので、通常はファイルサイズが大きくなります。
元のJFIFファイルは変更されません。新しいBMPのコピーをダウンロードします。

JFIFとBMPの比較

機能	JFIF	BMP
氏名	JPEG File Interchange Format	Windowsビットマップ
由来	Defined in 1992 as the standard JPEG file layout	Created by Microsoft for Windows
圧縮	非可逆（中身はJPEG）	非圧縮
透過	いいえ	No (in the 24-bit BMPs most apps read)
アニメーション	いいえ	いいえ
色	1,670万色（チャンネルあたり8ビット）	1,670万色（24ビット）
開けるアプリ	Most image viewers, but many upload forms reject the .jfif extension	Windows and macOS apps, older software and browsers
こんな方に最適	JPGにできないことは何もない — 同じ画像データを保持している	older Windows programs, embedded devices and tools that need raw pixels
主な欠点	upload forms and some apps reject the .jfif extension	very large files and no transparency

In short: choose JFIF for nothing a JPG can't do — it holds the same image data; choose BMP for older Windows programs, embedded devices and tools that need raw pixels.

Frequently asked questions

How do I convert JFIF to BMP?: Upload your JFIF file above. It is converted to BMP 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 JFIF to BMP lose quality?: 新たな劣化は生じません。BMPは画像をそのままの状態で保存します。JFIFの圧縮で以前に失われたディテールは復元できません。
JFIF or BMP: which should I use?: Use JFIF for nothing a JPG can't do — it holds the same image data. Use BMP for older Windows programs, embedded devices and tools that need raw pixels. Keep in mind the main drawback of BMP: very large files and no transparency.
JFIFファイルとは？: A .jfif file is a JPEG with an unusual extension; Windows and some browsers save web images this way. The picture is identical to a .jpg, but many sites and apps refuse the .jfif name.
Is the JFIF to BMP 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.

JFIFからBMP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。

Convert JFIF files to BMP online
透明な部分を好きな背景色で塗りつぶします
Switch to any other output format in Settings
Batch-convert many JFIF files into one ZIP
Preview the result before you download

このツールを使用する

設定リファレンス

JFIFからBMP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: 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）。