Bulk Converter
Bulk HEIC to JPG Converter
Convert an entire folder of iPhone HEIC photos to JPG at once. Drop up to hundreds of files and download them all in a single ZIP.
Drop all your HEIC files here
or click to select multiple files
Free: up to 10 files, 20 MB each
Convert unlimited files — upgrade to Pro
Free plan: 10 files per session. Pro: unlimited files, 200 MB each, ZIP download.
Free
$0
forever
- 10 files per session
- 20 MB per file
- JPG download
Pro Monthly
$9
per month
- Unlimited files
- 200 MB per file
- ZIP bulk download
- No ads
Pro Lifetime
$29
one-time
- Everything in Pro Monthly
- Pay once, use forever
Files stay on your device. Bulk conversion runs entirely in your browser — no server, no upload.
How to batch convert HEIC to JPG
Transferring photos from iPhone to Windows or sharing a large photo library? Here's the fastest workflow.
The bulk conversion workflow
If you've taken hundreds of photos on your iPhone, converting them one by one is impractical. ConvertStack's bulk converter processes your entire library:
- Transfer HEIC files from your iPhone to your computer (USB, AirDrop, iCloud, or Google Photos)
- Select all HEIC files and drag them into the drop zone above
- The converter processes 2 files simultaneously for speed without memory issues
- Once done, click "Download All as ZIP" to get all JPGs in a single archive
Why does it process 2 files at a time?
HEIC decoding uses WebAssembly workers that consume significant memory per file. Processing too many simultaneously can crash your browser tab. ConvertStack is tuned to run 2 concurrent conversions — fast enough to feel instant, safe enough to handle large batches without issues.
ZIP download tips
After conversion, click Download All as ZIP to get a single archive containing all your JPG files. The ZIP uses STORE compression (no re-compression) since JPEGs are already compressed — this makes ZIP creation faster and keeps file sizes unchanged.
Files in the ZIP are named identically to your original HEIC files, just with the .jpg extension — so your original filenames and sort order are preserved.