How to Reduce HEIC Image Size Without Losing Quality

HEIC files are already significantly smaller than JPGs, but sometimes you need to squeeze them down further — for email attachments, website uploads, or just saving more storage space. Here's how to reduce the size of your HEIC images without noticeably affecting quality.

Understanding HEIC Compression

HEIC uses HEVC (High Efficiency Video Coding) to compress images. This is the same technology used for 4K video, and it's remarkably efficient. But you can still adjust the compression level.

Adjust HEIC Quality Settings on iPhone

Your iPhone lets you choose between two quality settings:

• High Efficiency — Smaller files using HEIC format (default)
• Most Compatible — Larger JPG files

For smaller HEIC files, make sure High Efficiency is selected in Camera Settings.

Convert to a More Efficient Format

If you need files smaller than HEIC, consider converting to WEBP or AVIF. Both formats offer better compression and can significantly reduce file size while maintaining quality. Our HEIC to WEBP converter is a great option for this.

Browser-Based Compression

Some browser-based tools offer compression options during conversion. You can adjust quality settings to find the sweet spot between file size and visual quality.

Final Tip

The best way to keep HEIC files small is to preserve the original HEIC format. Converting to other formats may increase file size (JPG) or decrease it (WEBP, AVIF) depending on your settings.