How to Bulk Convert HEIC to JPG on Windows (No Upload)
Your iPhone saves photos as HEIC. Windows can barely open them, and most online converters silently upload your pictures to a stranger's server. Here's how to convert a whole folder of HEIC files to JPG on Windows — in your browser, in seconds, without installing anything or uploading a single byte.
Morphix HEIC → JPG Converter
Drop HEIC files, get JPGs back. 100% local, batch supported, no signup.
Why HEIC is a pain on Windows
Since iOS 11, iPhones save photos in HEIC (High Efficiency Image Container) by default. It stores roughly the same quality as JPG at half the file size — great on the phone, awkward on Windows. Out of the box, Windows 10 and 11 can't show a HEIC preview in File Explorer, and double-clicking one prompts you to install Microsoft's HEIF Image Extensions plus the paid HEVC Video Extensions ($0.99). Most people skip the paid step and just convert to JPG instead.
The 4-step bulk conversion
Select your HEIC files in File Explorer
Open File Explorer and navigate to your iPhone photos folder. Hold Ctrl and click every .heic file you want to convert — select as many as you need.
Drag them into the Morphix converter
Open /convert/heic-to-jpg in Edge, Chrome, or Firefox. Drag the selected files from File Explorer straight onto the drop zone. No upload starts — files stay on your PC.
Drop HEIC files here
or click to browse from File Explorer
Watch the local conversion happen
Morphix decodes each HEIC in your browser via WebAssembly and re-encodes it as a high-quality JPG. Open DevTools → Network tab if you want to verify: zero upload requests.
Download your JPG batch
Save each JPG individually or grab the whole batch. They open instantly in Windows Photos, Word, web uploaders, print shops — anything that speaks JPG.
Why local conversion matters
Popular online converters like CloudConvert, TinyWow, and Zamzar upload your photos to a remote server, convert them there, and email or stream them back. Even when the operator promises to delete files, your pictures have touched a stranger's disk — logs, backups, and operator access are all on the table. For vacation snaps this is fine. For ID photos, medical paperwork, screenshots of messages, or anything personal, it's a real risk.
Morphix uses the same browser engine that decodes images for every website you visit, plus a WebAssembly HEIC decoder, to do the entire conversion inside the tab. The Network tab in DevTools shows zero outbound requests during conversion. Your photos do not leave your PC.
FAQ
Can I convert hundreds of HEIC files at once?
Yes. Morphix has no batch limit. Drag a whole folder of .heic files from File Explorer into the converter. Because everything runs locally in your browser, the only limit is your computer's memory.
Are my photos uploaded to a server?
No. Morphix uses a WebAssembly HEIC decoder that runs entirely inside your browser tab. Open DevTools → Network and you will see zero upload requests. Your photos never leave your PC, making this safe for ID scans, medical images, and personal screenshots.
Why do my HEIC photos show a gray box or error in Windows Photos?
The default Windows Photos app lacks the HEVC codec needed to decode iPhone HEIC files. Microsoft offers a paid HEVC extension in the Store. Converting HEIC to JPG with Morphix sidesteps the codec issue entirely — JPG opens instantly in Photos, Word, and any other Windows app.
Can I convert HEIC to JPG on a work laptop with no admin rights?
Yes. Morphix is a website, not a desktop program. It does not install software, modify the registry, or require admin privileges. It works on locked-down corporate laptops and school computers.
Will I lose quality converting HEIC to JPG?
JPG is a lossy format, but Morphix exports at high quality (~92). The visual difference is negligible for sharing, printing, uploading to social media, or sending to a print shop.
Does the converter work offline after the first visit?
Yes. Once the page and its WebAssembly decoder have loaded, you can disconnect from the internet and continue converting files locally with no network connection at all.
Can Windows open HEIC files natively?
Windows 10 and 11 need the free HEIF Image Extensions and the paid HEVC Video Extensions from the Microsoft Store. Most users skip the paid extension and convert to JPG instead, which works everywhere on Windows with zero setup.