JPG to MIFF Converter
Convert JPG into ImageMagick's lossless native MIFF working format. Drop a JPG file below — conversion happens locally on your device, so the file never leaves your computer.
Drop files, or click to browse
JPG files only — any size, any number of files
Frequently asked questions
Is this JPG to MIFF converter really free?+
Yes. There's no file limit, no watermark, and no account required. Because the conversion runs in your browser instead of on a server, there's no processing queue to pay for.
Is my file uploaded anywhere?+
No. Orbfile decodes and re-encodes the image locally using ImageMagick compiled to WebAssembly, running entirely inside your browser tab. The bytes never leave your device.
Will converting to MIFF lose quality?+
There's a quality slider so you can balance file size against visual quality. At high quality settings the difference is usually invisible.
Can I convert more than one file at once?+
Yes — drop as many files as you like and download them individually or as a single ZIP.
Is there a maximum file size?+
There's no fixed upload limit — Orbfile isn't uploading anything. The practical ceiling is your device's own memory, which comfortably handles even large, high-resolution photos.
How do I convert JPG to MIFF?+
Drop your JPG file into the box above — it's automatically converted to MIFF and a download link appears in seconds. No settings are required, though you can adjust quality if the tool offers a slider.
About JPG and MIFF
What is JPG?
JPG (or JPEG) is the format most cameras and phones save photos in by default — it uses lossy compression tuned for photographic detail.
Full JPG format guide →What is MIFF?
MIFF (Magick Image File Format) is ImageMagick's own native format, built to losslessly preserve every image attribute ImageMagick knows about.
Full MIFF format guide →People usually reach for this conversion because MIFF offers preserves every image attribute and metadata field losslessly, sidestepping a real JPG weak spot: no transparency. It's especially useful for a lossless intermediate step in an ImageMagick-based batch or scripted workflow.
How it works
- 1
Drop your file in
Drag your image onto the box above, or click it to browse — there's no account to create and no upload to wait on.
- 2
Pick your settings
The output format is already set for this page — just adjust any extra options shown, if there are any.
- 3
Download the result
Your browser processes everything locally and hands you a download link the moment it's done — nothing was ever sent to a server.
Is it private?
Everything happens locally, inside this browser tab. Your image is read from disk, processed with WebAssembly running on your own device, and handed back to you as a download — it's never transmitted anywhere, so there's nothing to intercept and nothing stored on a server.
Common use cases
- A lossless intermediate step in an ImageMagick-based batch or scripted workflow
- Preparing images for a website or online store
- Attaching a photo to an email with a size limit
- Getting a screenshot ready to share or document
Supported formats
This is one of many pairings the image toolkit handles. In total it covers:
Related conversions
Format details
About JPG files+
JPG (or JPEG) is the format most cameras and phones save photos in by default — it uses lossy compression tuned for photographic detail.
JPEG (Joint Photographic Experts Group) works by discarding image detail the human eye is least likely to notice, which is why it can shrink a photo to a fraction of its uncompressed size while still looking sharp at normal viewing sizes. That efficiency, combined with support baked into virtually every camera, phone, browser, and operating system since the early 1990s, made it the default photo format for the web and for personal photo libraries alike. The tradeoff is that JPEG is lossy: every time a file is re-saved, a little more detail is discarded, and it has no support for transparency, so it's a poor fit for logos or graphics that need to sit on any background.
How to open a JPG file
Opens readily in Any web browser, Your operating system's default photo viewer. For real editing, use Adobe Photoshop, GIMP, Affinity Photo.
Good for
- small file sizes for photos
- supported by literally every image viewer, browser, and app ever made
Watch out for
- no transparency
- visible artifacts if compressed too aggressively
- re-saving repeatedly degrades quality
About MIFF files+
MIFF (Magick Image File Format) is ImageMagick's own native format, built to losslessly preserve every image attribute ImageMagick knows about.
John Cristy created MIFF alongside ImageMagick itself in 1999 as a platform-independent way to save an image mid-workflow without losing anything to a lossy or metadata-limited format. A MIFF file is a plain-text header of keyword=value pairs — color profile, comments, compression, class — followed by the raw pixel data, so unlike JPG or even PNG, it can round-trip every piece of state ImageMagick tracks internally. That makes it a solid choice as a lossless intermediate file in an ImageMagick-based pipeline, though outside that ecosystem almost nothing else can open it.
How to open a MIFF file
Opens readily in For real editing, use ImageMagick, GraphicsMagick.
MIFF is ImageMagick's internal working format — general-purpose photo viewers and editors won't recognize it.
Good for
- preserves every image attribute and metadata field losslessly
- simple, well-documented text-plus-binary structure
Watch out for
- essentially unsupported outside ImageMagick/GraphicsMagick
Need a different format? Try the full Image Converter, or explore all image tools.