How to Batch Convert HEIC Files: Complete Guide

Online: Batch Convert in Browser (Easiest)

Our batch converter runs entirely in your browser — no installation, no uploads, no file size limits. Just drag and drop as many HEIC files as you need, select your output format (JPEG, PNG, WebP, or BMP), and click download. Files are processed with 2 concurrent workers for smooth performance. When all files are done, download them individually or as a single ZIP archive. Works on Windows, Mac, Linux, iOS, and Android with any modern browser.

Windows: Batch Conversion Methods

Windows users have several options for batch HEIC conversion:

• Our web converter — works entirely in browser, no installation needed
• IrfanView with HEIC plugin — select multiple files, batch convert in one step
• CopyTrans HEIC — adds HEIC support to Windows, then batch convert in Photos app
• PowerShell script using libheif — for advanced users comfortable with command line

Mac: Batch Conversion Methods

On macOS, HEIC files open natively in Preview and Photos, but batch conversion requires additional tools:

• Our browser converter — drag multiple files from Finder
• Automator workflow — create a Quick Action to convert selected HEIC files to JPEG
• sips command line — macOS built-in image processing: `sips -s format jpeg *.heic --out output/`
• ImageMagick with libheif — `magick convert *.heic output_%%d.jpg`

iOS: Batch Conversion on iPhone

For converting HEIC photos directly on iPhone: use our Safari-based converter to select multiple photos from your library, or create an iOS Shortcut that batch converts selected photos to JPEG format and saves them back to your photo library (see our dedicated guide for step-by-step instructions).

Tips for Large Batches

For best performance when converting large numbers of HEIC files: close unused browser tabs to free memory; convert in groups of 20-30 files if you have very large files (over 20 MB each); use a power source if on laptop (conversion uses CPU which drains battery faster); and have enough free disk space for the output files (PNG files are significantly larger than HEIC).