Is JPEG different from JPG?

JPEG and JPG are the same format - the difference is purely the file extension. The JPEG (Joint Photographic Experts Group) standard was finalised in 1992, and early MS-DOS and Windows 3.1 limited filenames to three-character extensions, which is why .jpg dominates on PCs while macOS, Linux, and camera exports often keep the four-letter .jpeg. Whichever extension your files carry, converting JPEG to HEIC re-encodes the 1992-era compression into modern HEVC, typically cutting file size 40-50% at the same visual quality.

The classic use case is reclaiming storage from large photo collections. A decade of 3-4MB JPEG photos re-encoded as HEIC becomes a library of 1.5-2MB files that look identical on screen - across tens of thousands of images, that's the difference between paying for the next iCloud or Google One tier and not. HEIC is Apple's native photo format (default on iPhone since iOS 11), so converted files integrate seamlessly with Photos, AirDrop, and iCloud, and Google Photos indexes them too. EXIF, GPS, and colour-profile metadata carry through the conversion intact.

Two honest caveats. First, JPEG-to-HEIC is lossy-to-lossy: the conversion adds a small generation of loss on top of the source's existing artefacts, so convert once at high quality and keep true masters if the images are irreplaceable. Second, compatibility narrows: old Android phones, Windows machines without the HEVC codec, most email clients, and many upload forms reject HEIC - the reverse trip via HEIC to JPG exists precisely because of this. HEIC is the right call for storage and Apple-side living; JPEG remains the right call for maximum reach.

Reasons to convert JPEG to HEIC usually come down to compatibility, file-size, or specific feature requirements. Common situations:

• An app or platform only accepts HEIC uploads.
• You need a feature unique to HEIC (e.g. transparency, vector scaling, animation, multi-page pages, etc.) that JPEG doesn't provide.
• You're optimising file size — modern formats often produce smaller files than the older format you started with.
• You need a single archival format across a project so files behave consistently in the same viewer.

1. Open the JPEG → HEIC tool on heic.now.
2. Drag your JPEG file onto the drop zone, or click Select files. You can drop a whole folder of files at once.
3. The output is fixed to HEIC. If the format supports extra options (page size, transparency background, quality, EXIF stripping), tweak them in the right-hand panel.
4. Click Convert. The job runs on our server and finishes in a few seconds for typical photos.
5. Download the result. Files stay in storage for 24 hours and are then permanently deleted.

The entire flow is free for the first 10 jobs per day with no signup required. A free account doubles that quota; a premium plan removes the limit entirely.

• Use a high quality setting - the point is storage savings from smarter compression, not from visible quality reduction.
• Convert once and stop - each JPEG-to-HEIC-to-JPEG round trip adds a generation of loss from two different codecs.
• Already-tiny JPEGs (heavily compressed web saves) gain little - HEIC shines on lightly compressed camera-original JPEGs of 2MB and up.
• Metadata carries over: EXIF timestamps, GPS, and camera data survive, so your photo library's date-sorting and map features keep working after conversion.
• Keep a JPG export path handy for sharing - upload forms, older Android recipients, and email clients still routinely reject HEIC.