I built a new "JFIF to JPG Convertor", a super lightweight web tool that converts .jfif images to .jpg directly in your browser — instantly and privately, without uploading anything to a server.

If you’ve ever downloaded images from the web or social media only to find them in the annoying .jfif format, this fixes that with a single click. Everything runs locally in JavaScript, so it’s fast and secure.

Features:

100% client-side (no uploads, no tracking, no cookies)

Instant conversion, even for large batches

Privacy-friendly — your files never leave your device

Minimalist design, mobile-friendly

Works offline once loaded

The goal was to make a clean, open, and privacy-respecting alternative to heavy online converters full of ads and analytics scripts.

Would love your feedback on performance, UI simplicity, or ideas for future improvements (e.g., drag-and-drop batch processing, EXIF handling, or direct rename support).

Try it here: https://jfif-to-jpg.com