# Understanding HEIC vs JPEG: iPhone Photo Conversion Guide
If you take photos on an iPhone, you have likely encountered the .HEIC file format. Learn how to convert HEIC photos to JPG format 100% offline with zero quality degradation.
Since iOS 11, Apple devices default to the High Efficiency Image Container (HEIC) format for capturing photos. While HEIC offers modern compression benefits, compatibility hurdles remain widespread across Windows PCs, Linux environments, and online application portals.
1. Why Apple Adopted HEIC Format
HEIC is based on the HEVC (H.265) video compression standard and offers significant advantages over legacy JPEG:
- 50% Smaller File Size: HEIC stores high-resolution photos at roughly half the file size of an equivalent quality JPEG.
- 16-Bit Color Depth: Supports 16-bit color channels compared to JPEG's 8-bit limit, delivering smoother gradients and better shadow details.
- Live Photos & Burst Stacks: Encodes multiple frames, depth maps, and alpha transparency channels inside a single container file.
2. The Compatibility Dilemma
Despite its technological superiority, HEIC is frequently rejected by government job portals, university portals, and legacy image viewers. Users encountering *"File type not supported"* errors require fast conversion to universal JPEG.
3. How to Convert HEIC to JPG Privately
Instead of uploading personal photos to random online converters, use the Image Converter on Resizer Tools. The converter utilizes client-side decoding libraries to transform HEIC files into high-quality JPEG or PNG files directly in your web browser.