Batch conversion

How to batch convert HEIC files to JPG

If you have a whole folder of iPhone photos from an event, product shoot, shared album, or iCloud export, batch conversion is the least annoying way to get matching JPG copies in one go.

Best workflow for multiple HEIC photos

Start by putting the HEIC files in one folder, so they do not get mixed with random photos later.
Select all needed .heic or .heif files in the converter.
Set JPG quality around 90%. The images stay clear, and the files do not get ridiculous.
Wait for every row to show Converted.
Use Download all as ZIP to keep the JPG copies together.

Prepare a batch before you upload

Group files first

Put the HEIC files for one task in a dedicated folder so you do not mix originals from different projects.

Remove obvious duplicates

Delete burst shots or accidental screenshots before conversion if you do not need them as JPG.

Check destination rules

Look for accepted file types, maximum file size, image dimensions, and upload count limits.

Test one file

If the upload site is strict about quality or size, convert one representative image first and test it before doing the whole folder.

When to split a large batch

Browser-based conversion uses your own device memory. If the folder is huge, do not select hundreds of high-resolution photos at once. That is how you end up with a frozen tab halfway through the job. Split the work into smaller groups, and if something fails, you only have to retry that smaller group.

Batch size	Recommended approach	Why
1-10 photos	Convert them together.	This is small enough to review quickly, whether you download one by one or as ZIP.
10-50 photos	Convert together if your browser remains responsive.	Works well for event sets, product photos, and shared folders.
50+ large photos	Split into smaller groups.	Large iPhone photos can put pressure on browser memory and downloads.
Mixed source folders	Sort by task before converting.	It is easier to retry, rename, and upload clean groups.

Keep filenames organized

Converted files keep the original base name and replace the HEIC or HEIF extension with the selected output extension. For example, IMG_1234.HEIC becomes IMG_1234.jpg. If you download a ZIP, the converted files stay together in one archive instead of scattering across your Downloads folder.

Quality settings for batches

Everyday sharing

Use 85-90% when the JPGs are for email, messages, forms, and general uploads.

Listings and portfolios

Use 90-95% when images need to look sharp on marketplaces or client previews.

Archive copies

Use 95-100% and keep the original HEIC files as the long-term source.

Strict upload limits

Lower quality gradually and test one image first if small text or faces matter.

Troubleshooting batch conversion

Problem	Likely cause	What to do
One file fails while others convert.	The file may be damaged, incomplete, or a different format with a HEIC-like name.	Retry that file alone and keep the original for another export attempt.
The page feels slow.	The selected batch is too large for the current browser session.	Clear the page, split the folder, and convert smaller groups.
ZIP download takes time.	The browser is packaging many output files into one archive.	Wait for the ZIP to finish, or download smaller groups if the batch is very large.
Uploaded JPGs are rejected.	The destination may have file-size, dimension, or naming restrictions.	Check the portal rules and adjust quality or filenames before retrying.

Batch conversion checklist

Keep the HEIC originals until the upload works or the client says the JPG files are fine.
Use consistent quality across one batch so image appearance and file size are predictable.
Download as ZIP when you need to move the converted photos to another computer.
Convert another batch only after the current batch finishes and downloads correctly.

Related guides

Batch convert HEIC photos

Select multiple HEIC files and download the converted JPGs individually or as one ZIP.

Open HEIC to JPG converter