Convert HEIC to JPG offline, without the internet
On a plane with a folder of iPhone photos the form won't take? This keeps working.
GigAI's HEIC converter decodes iPhone photos in your browser - after your first visit it works with the internet off, because the site installs as an offline-capable app. Your photos are never uploaded either way. In our benchmark a 2.3 MB HEIC converted in 5.7 seconds.
3 tools for this
Each one is free, private and runs in your browser. No sign-up, no watermark.
HEIC to JPG
Convert iPhone HEIC photos to JPG (or PNG) in your browser, so they open everywhere. Free, private and instant; nothing is uploaded.
Image Compressor
Shrink JPG, PNG and WebP images without a visible quality drop. Set the quality yourself, or compress to an exact target size like 100 KB. Free, entirely in your browser.
Remove Metadata
See the hidden data inside a photo or PDF (GPS location, your device, author, dates) and download a clean copy with it stripped. Private, in your browser.
How to fix it
Follow these steps and you'll have it sorted in a couple of minutes.
- 1
Visit once online
The converter and its HEIC decoder cache locally via the service worker.
- 2
Convert - connected or not
Decoding runs in WebAssembly on your device; the network isn't part of the pipeline.
- 3
Compress if size matters
JPG is usually larger than HEIC at the same quality - run the result through the compressor if you need it small.
- Emailing HEIC files to yourself to convert them on a PC - the photo makes two internet round-trips for a job your browser does locally.
- Expecting the JPG to be smaller: HEIC compresses better, so converting is about compatibility, not size.
Frequently asked questions
More problems we solve
Ran into one of these too? Here's the fix.
- My iPhone photo is a HEIC that won't openThat '.heic' file isn't broken: it's just a format non-Apple devices don't recognise. Convert it to JPG and it opens anywhere.
- My image file is too largePhone photos are often 3–8MB. Compress (and if needed resize) to hit a 100KB or 50KB upload limit while still looking clean.
- Resize an image without a watermarkA watermark on your own photo is a ransom note. Skip the sites that hold images hostage.
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Problems we solve
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Ready? Start with HEIC to JPG
Free, private and instant: everything runs in your browser.