Compress JFIF to 100KB

1. Upload your JFIF (up to 50 MB).
2. The compressor automatically targets 100 KB or under.
3. Download the compressed JFIF — ready to upload or send.

100 KB is the most common web upload cap. JFIF uses the same compression as JPG, so the results are identical — sharp on screens, small enough for fast uploads.

100 KB is the most common upload cap across the web — WordPress, Shopify, email clients, and countless forms. JFIF uses the same JPEG compression as JPG, so compressing to 100 KB produces identical results. At 100 KB, a JFIF is typically 800-1200px wide with quality 75-85% — visually indistinguishable from the original on most screens.

The compressor decodes the JFIF image and re-encodes it using libjpeg-turbo starting at quality 85%. If the output exceeds 100 KB, it reduces quality and re-encodes until the file is 100 KB or smaller. At 100 KB, a JFIF is typically 800-1200px wide with quality 75-85% — sharp on screens.

• Website JFIF upload with a 100 KB cap.
• Email attachment (fast sending).
• Marketplace JFIF image upload.
• Blog post image optimization.
• Reducing JFIF library size.
• Preparing JFIF photos for web forms.
• Any platform with a 100 KB limit accepting .jfif.

100 KB is a good balance — the image looks sharp on screens at normal viewing sizes. Expect 800-1200px wide with quality 75-85%. Fine for web, email, and marketplaces.

• 100 KB limits resolution — typically 800-1200px wide.
• JFIF has no transparency — transparency becomes white.
• Not ideal for large-format print.
• Very detailed images may show slight softening at 100% zoom.
• For higher quality, use the 200 KB variant.

• Output opens in most modern image viewers and browsers.
• Treated as JPG by most software.
• Accepted by WordPress, Shopify, Squarespace, Wix, Ghost.
• Accepted by Gmail, Outlook, Yahoo (email attachment).
• Standard JFIF — no special software needed.

• 100 KB is the sweet spot for web and email.
• Same compression as JPG — consider converting to .jpg for wider platform support.
• Resize to the target display size before uploading.
• If quality is too low, use the 200 KB variant.
• Metadata is preserved — useful if the platform requires it.

Need to hit an exact size? Use our dedicated target-size tools:

Output is still slightly over 100 KB

Crop or resize the image smaller first, or use the 200 KB variant.

Image looks soft at 100 KB

Resize to the actual display size before uploading — very large originals lose more quality.

Platform doesn't accept .jfif

Convert JFIF to JPG first — the pixels are identical, only the extension differs.

• ITU-T T.81 — JPEG specification
• JFIF — Official Specification