I wasted an afternoon once exporting a whole trip folder as PNG “for quality,” then could not fit the ZIP on a normal USB stick. The photos were fine; my format choice was wrong.
This guide is the settings cheat sheet I wish I had before that — HEIC to JPG (and when not to).
Does HEIC → JPG lose quality?
Yes, technically. JPG is lossy. In practice, at 80–90% quality, I cannot tell on a phone or laptop for normal candids. Below ~60% you may see banding in blue skies and soft skin tones.
HEIC → PNG is lossless but much larger. Browser converters ignore quality sliders on PNG — that is normal.
HEIC → WebP also uses lossy compression but often looks as good as JPG at a smaller byte size. Not every old app opens WebP.
Recommended settings (what I actually use)
| Use case | Format | Quality / notes |
|---|---|---|
| Texting family | JPG | 80–85% |
| JPG | 75–85% | |
| Print shop (few hero shots) | JPG 90%+ or PNG | Ask the shop |
| Website you control | WebP or JPG | 75–85% |
| Heavy editing in Photoshop | PNG | Lossless export |
Test one representative photo before converting two hundred. White dresses and night skies lie.
JPG vs PNG vs WebP — quick pick
- JPG when anyone, anywhere must open the file.
- PNG when you need lossless edits or sharp text in the image.
- WebP when you run the site and control delivery.
Searching “heic to jpeg” vs “heic to jpg”? Same output — see JPEG vs JPG.
Batch conversion habits
- One format per folder so you are not mixing PNG giants with JPG shares.
- Same quality for an entire event — looks consistent if someone flips through.
- ZIP download when the tool offers it; unzip into a new folder, keep HEIC originals elsewhere.
Large batches: batch convert hundreds of HEIC files.
Common mistakes (photo workflow, not code)
- Renaming
.heicto.jpgwithout converting — the file is still HEIC inside; apps break. - Dragging quality to 50% to “save space” — you will notice later.
- Expecting PNG to respect a quality slider — it will not.
- Live Photos — most tools export the still frame only, not the motion.
- Mixing outputs in one folder —
IMG_0001.jpgfrom Monday overwritesIMG_0001.jpgfrom Tuesday; use subfolders.
When conversion fails
- File might be corrupted — re-copy from the phone.
- Extension might be wrong (not a real HEIC).
- Browser ran out of memory — close tabs, convert fewer files, try Chrome or Edge.
- Weird export from a third-party app — open on iPhone once; if it fails there too, the source file is bad.
After you convert
Spot-check the first, last, and a random middle file. If skin tones look waxy, bump quality up five points and redo one test file before redoing the batch.
Apply settings in the tool: HEIC to JPG converter.