HEIC to AVIF Converter
Convert HEIC images to AVIF format with optional quality and resizing.
100% Client-Side Processing
Most formats convert in your browser. HEIC/HEIF requires server-side conversion; those files are uploaded temporarily for processing and then deleted.
Input format: HEIC/HEIF. Recommended: up to 20MB per image. Maximum: ~50MB. Maximum image size: 4096×4096 pixels
Table of Contents
What is HEIC to AVIF conversion?
This conversion transforms a HEIC image into AVIF.
AVIF is a great choice when you need modern compression and better web performance.
How it Works
- Upload a HEIC image.
- Adjust options (quality and/or resize, depending on output).
- Convert and download your AVIF image.
Conversion Settings
Quality (JPG/WebP/AVIF)
Higher quality preserves more detail but increases file size. For most web photos, 70–85% is a great range.
Maximum width
Resize while keeping aspect ratio to reduce file size.
Which Format Should I Use?
JPG/JPEG
Best for photos and images with lots of colors
- Universal compatibility (works everywhere)
- Great compression for photos
- No transparency support
- Lossy: loses quality with each save
PNG
Best for graphics, logos, and images needing transparency
- Supports transparency
- Lossless (no quality loss)
- Larger file sizes than JPG
- Not ideal for photos
WebP
Best for modern websites (great balance)
- 25-35% smaller than JPG at same quality
- Supports transparency
- Good for both photos and graphics
- Not supported in very old browsers (IE11)
AVIF
Best for cutting-edge web performance
- 30-50% smaller than JPG at same quality
- Supports transparency
- Next-generation format
- Limited browser support (2020+)
Quality Settings Guide
90-100% — Maximum quality, large files
- Use for: Print, archival, professional work
- File size: Largest
70-85% — Recommended for web (sweet spot)
- Use for: Websites, social media, most photos
- File size: Balanced
- Quality: Visually identical to original for most people
50-70% — High compression
- Use for: Thumbnails, email attachments
- File size: Small
- Quality: Noticeable but acceptable
Below 50% — Maximum compression
- Use for: When file size is critical
- File size: Smallest
- Quality: Visible compression artifacts
Common Use Cases
- Compatibility: convert to AVIF for apps and platforms that expect it.
- Web performance: reduce image payloads with modern formats (WebP/AVIF).
- Editing workflows: use PNG when you need lossless output.
Frequently Asked Questions
Not always. Lossless formats like PNG can be larger than JPEG/WebP. Try WebP/AVIF, lower quality, and/or resize if file size is the priority.
Most formats convert in your browser. HEIC/HEIF requires server-side conversion and is uploaded temporarily for processing and then deleted.