Compare JPEG Image and Tagged Image File Format formats — understand the key differences and when to use each
JPEG Image
JPG (also known as JPEG — Joint Photographic Experts Group) is the world's most popular image format for photographs and web images, first standardized in 1992. JPG uses DCT-based lossy compression to reduce file sizes by 90% or more while maintaining visual quality that's often indistinguishable from the original. The format supports up to 16.7 million colors (24-bit color depth), making it ideal for photographs, gradients, and complex imagery. JPG compression levels are adjustable: higher compression means smaller files but more artifacts, while lower compression preserves quality at larger sizes. JPG does not support transparency or animation. It's the default photo format for digital cameras, smartphones, and web browsers. Common use cases include website images, email attachments, social media posts, and print materials. For web optimization, JPG images should typically be compressed to 60-85% quality.
Tagged Image File Format
TIFF (Tagged Image File Format) is a versatile, high-quality image format widely used in professional photography, publishing, printing, and document archiving. Created by Aldus (now Adobe) in 1986, TIFF supports multiple compression methods including LZW (lossless), ZIP, and JPEG, as well as uncompressed storage. TIFF can store images in various color spaces (RGB, CMYK, LAB, grayscale) and bit depths (8-bit, 16-bit, 32-bit float), making it essential for color-critical workflows. The format supports multiple pages/layers in a single file, alpha channels, clipping paths, and extensive metadata (EXIF, IPTC, XMP). TIFF/IT is used for prepress data exchange, and GeoTIFF embeds geospatial data for mapping applications. While TIFF files are larger than JPG or PNG, they're the preferred archival format for preserving maximum image quality and metadata.
| Feature | JPG | TIFF |
|---|---|---|
| Full Name | JPEG Image | Tagged Image File Format |
| File Extension | .jpg | .tiff |
| Category | image | image |
| Free to Convert | ✓ Yes | ✓ Yes |
| Browser Support | ✓ All Browsers | ✓ All Browsers |
| Convert to Each Other | ✓ Yes | ✓ Yes |
またはファイルをここにドラッグ＆ドロップ
最大ファイルサイズ：2GB