HEIC vs JPG vs PNG vs WEBP vs AVIF — Full Format Comparison Guide

Choosing the right image format matters. Whether you're a photographer, web developer, or just someone who takes lots of photos with their phone, the format you use affects file size, quality, and who can actually open your images. Let's compare the five most popular image formats head to head.

The Contenders

• HEIC — Apple's modern format, great compression
• JPG — The universal standard, been around forever
• PNG — Lossless quality with transparency support
• WEBP — Google's web-optimized format
• AVIF — The next-gen format backed by major tech companies

File Size Comparison

At equivalent visual quality, here's how they stack up:

AVIF produces the smallest files, roughly 50% smaller than JPG at the same quality. HEIC comes in second, about 40-50% smaller than JPG. WEBP is close behind HEIC. JPG is the baseline. PNG produces the largest files since it's lossless.

If storage space or bandwidth is your main concern, AVIF or HEIC are your best bets.

Image Quality

All modern formats (HEIC, WEBP, AVIF) offer excellent quality that's comparable to or better than JPG at equivalent file sizes. PNG is unique here because it's lossless — every pixel is preserved exactly. This makes it ideal for screenshots, graphics, and text-heavy images where every detail matters. AVIF and HEIC both support HDR and wide color gamuts, giving them an edge for high-end photography work.

Compatibility

This is where things get interesting:

• JPG — 100% compatibility. Every device, every platform, every piece of software.
• PNG — Near universal support, just behind JPG.
• WEBP — Supported by all major browsers (96%+ global support).
• HEIC — Native on Apple devices. Limited elsewhere without conversion.
• AVIF — Growing fast but still has less support than WEBP.

Best Use Cases

When to Use HEIC

You're in the Apple ecosystem and want to save storage space on your iPhone or iPad. HEIC is perfect for personal photo libraries within Apple's walled garden.

When to Use JPG

You need to share photos with people who might be using any device, operating system, or software. JPG is the safest choice for universal compatibility.

When to Use PNG

You need transparency, lossless quality, or are working with screenshots, logos, or graphics. PNG is the gold standard for these use cases.

When to Use WEBP

You're building a website and want fast load times. WEBP offers excellent compression with broad browser support and transparency options.

When to Use AVIF

You want the absolute best compression and are targeting modern browsers. AVIF is the most efficient format available today.

Our Recommendation

If you need to ask which format to use, JPG is always the safe answer. But the smart approach is to pick the right format for your specific need and convert when necessary. Tools like heic2.tools make converting between formats effortless, so you don't have to commit to just one.