Convert HEIC to AVIF — Free Online
Convert your HEIC files to AVIF format instantly, right in your browser. The output is often up to 50% smaller. No signup, no watermark, 100% free.
Last updated: June 26, 2026
Need to convert HEIC to AVIF? Snap2Format is a free online HEIC to AVIF converter that turns your HEIC images into high-quality AVIF files in seconds. It also works as a quick image to AVIF tool — upload any photo or picture and get a AVIF back. There is nothing to download and no account to create — just upload your file above, click convert, and download the result. Below you will find everything you need to know about the HEIC and AVIF formats, why people convert between them, and how to get the best possible result.
What is HEIC?
HEIC (High Efficiency Image Container) is the default photo format on modern iPhones and iPads. Built on the HEIF standard, it stores high-quality photos at roughly half the size of JPG. While HEIC saves storage on Apple devices, it has limited support on Windows, Android, and the web — which is exactly why converting HEIC to a universal format such as JPG or PNG is so popular.
What is AVIF?
AVIF (AV1 Image File Format) is a next-generation image format based on the AV1 video codec. It offers up to 50% better compression than JPG while supporting HDR, wide colour gamut, transparency, and both lossy and lossless modes. AVIF produces some of the smallest high-quality images available today, making it ideal for modern, performance-focused websites and apps.
Why Convert HEIC to AVIF?
Converting HEIC to AVIF is one of the most common image tasks, and there are several good reasons to do it. AVIF delivers the smallest possible files at excellent quality, ideal for high-performance, modern websites. Because HEIC files often will not open on Windows, Android, or the web, converting them makes your iPhone photos viewable everywhere. Whatever your reason, Snap2Format handles the HEIC to AVIF conversion in seconds — right in your browser, with no quality loss you would notice and no software to install.
HEIC vs AVIF: Quick Comparison
Here is how the HEIC and AVIF formats compare at a glance, so you can be sure AVIF is the right output for your needs:
| Feature | HEIC | AVIF |
|---|---|---|
| Compression | Lossy | Lossy or lossless |
| Transparency | ❌ No | ✅ Yes |
| Animation | ❌ No | ✅ Yes |
| Best for | efficient photo storage on iPhone and iPad | cutting-edge web images with maximum compression |
Benefits of the AVIF Format
- Up to 50% smaller than JPG
- HDR and wide-gamut colour support
- Transparency plus a true lossless mode
Things to Keep in Mind
- Slower to encode than older formats
- Not yet supported in some legacy browsers and apps
How to Convert HEIC to AVIF Online
Converting HEIC to AVIF with Snap2Format takes just a few seconds and works on any device — Windows, Mac, Linux, Android, or iPhone:
- Drag and drop your HEIC file onto the converter above, or click to browse and select it.
- AVIF is already pre-selected as the output format for this page.
- Choose your preferred quality level — High is recommended for the best results.
- Click the "Convert HEIC to AVIF" button and wait a moment while we process your image.
- Download your new AVIF file instantly, or switch to Batch Mode to convert up to 20 files at once.
Tips for the Best HEIC to AVIF Conversion
Choose the High quality setting for the best-looking AVIF result. Lower quality levels create even smaller files when size matters more than fine detail.
Is Snap2Format the Right HEIC to AVIF Converter?
Snap2Format was built to make converting HEIC to AVIF as fast, private, and painless as possible. Here is what you get:
- 100% free: Convert HEIC to AVIF online with no signup, no watermark, and no hidden limits.
- Private and secure: Your files are processed securely and automatically deleted within 2 hours — we never store or share your images.
- Batch conversion: Convert up to 20 HEIC files to AVIF at once and download them together as a ZIP.
- Works everywhere: A browser-based HEIC to AVIF converter that runs on any device, with nothing to install.
- High quality & fast: Adjustable quality settings give you the perfect balance of file size and image clarity.
Frequently Asked Questions
Upload your HEIC file to Snap2Format, select AVIF as the output format, choose your quality level, and click Convert. Your AVIF file will be ready to download in seconds — no signup or software required.
Yes, Snap2Format is 100% free. There is no signup, no watermark, and no usage limit. Convert as many HEIC files to AVIF as you need.
At the High quality setting the difference is virtually undetectable to the human eye. Choose High for the best visual quality, or a lower setting for a smaller file.
Yes. Switch to Batch Mode and upload up to 20 HEIC files at once. They will all be converted to AVIF and can be downloaded individually or together as a single ZIP file.
Absolutely. Your files are processed securely and automatically deleted from our servers within 2 hours. We never share, sell, or permanently store your images.
No. Snap2Format runs entirely in your web browser, so you can convert HEIC to AVIF online on Windows, Mac, Linux, Android, or iPhone without downloading or installing anything.
You can convert HEIC files up to 100MB each, and up to 20 files at a time in Batch Mode — more than enough for high-resolution photos and graphics.
Related HEIC & AVIF Conversions
Looking for a different conversion? Try one of these popular related tools:
New to these formats? Learn more about the HEIC format and the AVIF format.