jpg

.jpg — JPEG Image

Joint Photographic Experts Group · 1992

開発者

Joint Photographic Experts Group

カテゴリ

画像

MIMEタイプ

image/jpeg

初回リリース

1992

オープンフォーマット

はい

ファイルシグネチャ

FF D8 FF

.jpgファイルとは？

JPEG (Joint Photographic Experts Group) is the most widely used image format on the internet and in digital photography. It uses lossy compression to dramatically reduce file sizes while maintaining acceptable visual quality. JPEG is ideal for photographs and complex images with smooth color transitions. However, each time you save a JPEG, it loses some quality due to re-compression, making it unsuitable for images requiring frequent editing.

.jpgファイルを開くプログラム

プラットフォーム	プログラム
Windows	Windows Photos	無料	公式
	Adobe Photoshop	有料
	GIMP	無料
macOS	Preview	無料	公式
	Adobe Photoshop	有料

.jpgファイルのよくある問題

⚠️ Cannot open .jpg file

Install one of the recommended programs listed above. For a free option, try the first free program in the list.

⚠️ .jpg file is corrupted

Try re-downloading the file. If the file was transferred, ensure the transfer completed without errors.

よくある質問

What program opens .jpg files?▼

.jpg files can be opened with several programs. Windows Photos is one of the most popular choices.

Is .jpg a safe file format?▼

Generally yes, .jpg files are safe to open with appropriate software.

Can I convert .jpg to another format?▼

Yes, there are many online and offline tools available to convert .jpg files. Check the conversion section above for specific methods.

技術詳細

JPEG Image files use the image/jpeg MIME type and were first introduced in 1992 by Joint Photographic Experts Group. The file can be identified by its signature: FF D8 FF.

豆知識

JPEG Image was first released in 1992 by Joint Photographic Experts Group

セキュリティ情報

.jpg files are generally safe to open. However, always ensure your software is up to date to protect against potential vulnerabilities.