HEIC to AVIF Converter Free, Private, Instant
Drag & drop HEIC files here
or click to browse — .heic and .heif accepted
How to Convert HEIC to AVIF
- Drag and drop your HEIC files into the converter above, or click to browse.
- The converter automatically outputs AVIF format. Adjust quality if needed.
- Click download to save your converted AVIF files. For multiple files, use "Download All as ZIP."
What is AVIF?
AVIF (AV1 Image File Format) is a cutting-edge image format based on the royalty-free AV1 video codec, developed by the Alliance for Open Media (AOMedia) — a consortium including Google, Mozilla, Apple, Microsoft, Netflix, and Amazon. Standardized in 2019, AVIF achieves remarkable compression: 50% smaller than JPEG and up to 90% smaller in certain scenarios, while maintaining equal or superior visual quality. The format supports HDR (High Dynamic Range) with 10-bit and 12-bit color depth, wide color gamuts (BT.2020), alpha transparency, and both lossy and lossless compression. As of 2024, AVIF enjoys approximately 94% global browser support, with Chrome, Firefox, Safari (16.4+), Edge, and Opera all providing native rendering. AVIF represents the current state of the art in image compression technology.
What is a HEIC File?
HEIC (High Efficiency Image Container) is an image format used by Apple devices running iOS 11 and later. It uses the HEVC (H.265) codec for compression, producing files roughly half the size of equivalent JPEGs while maintaining the same visual quality. Despite its advantages, HEIC files are not universally supported across all platforms and applications, which is why conversion tools like this one exist.
HEIC vs AVIF
HEIC and AVIF are the two most advanced image formats available today, and they share surprising similarities. Both are derived from modern video codecs — HEIC from HEVC (H.265) and AVIF from AV1. At equivalent visual quality, HEIC and AVIF produce similarly sized files, with AVIF sometimes edging ahead by 5-15% in compression efficiency depending on image content. The critical difference is licensing: HEVC requires patent royalties, which limits HEIC adoption outside Apple's ecosystem. AV1 is completely royalty-free, which has driven rapid browser adoption — 94% of browsers support AVIF. AVIF also supports HDR and wide color gamuts more broadly. Converting HEIC to AVIF preserves the excellent compression while gaining compatibility with the broader web ecosystem.
Why Convert HEIC to AVIF?
- Best-in-class compression — AVIF files are 50% smaller than JPEG and competitive with HEIC, delivering the smallest files with the best visual quality.
- Royalty-free format — Unlike HEIC (built on patent-encumbered HEVC), AVIF is based on the royalty-free AV1 codec, ensuring long-term availability and support.
- Growing browser support — With 94% global browser coverage including Chrome, Firefox, Safari 16.4+, and Edge, AVIF is rapidly becoming the web standard.
- HDR and wide color gamut — AVIF supports 10-bit and 12-bit color depth with BT.2020 wide color, preserving the full dynamic range of modern camera sensors.
- Future-proof choice — As the newest and most efficient format backed by every major tech company, AVIF is the clear direction for web image optimization.
Frequently Asked Questions
Do all browsers support AVIF images?
As of 2024, approximately 94% of browsers globally support AVIF. Chrome (85+), Firefox (93+), Safari (16.4+), and Edge (121+) all render AVIF natively. The main gaps are older browser versions and some mobile browsers. If broad compatibility is critical for your use case, WebP (97% support) or JPG (100% support) may be safer choices, though the gap is closing rapidly.
Why is AVIF encoding slower than other formats?
AV1, the codec behind AVIF, uses more sophisticated compression algorithms than JPEG or WebP. This results in better compression ratios but requires more computational effort during encoding. In our browser-based converter, AVIF encoding may take 2-5x longer than JPEG encoding for the same image. However, the resulting files are significantly smaller, which saves bandwidth for anyone who views the image. The decoding speed (viewing the image) is fast across all browsers.
What quality setting produces the best results for HEIC to AVIF?
The default quality of 80 is our recommended starting point. AVIF's compression is so efficient that quality 80 produces images that look as good as JPEG at quality 92-95. For web optimization, 60-70 still produces excellent visual results with remarkably small files. For archival or high-quality use, 85-90 is more than sufficient. Going above 90 rapidly increases file size with diminishing visual returns.
How does AVIF compare to HEIC in terms of quality and file size?
AVIF and HEIC produce very similar file sizes at equivalent visual quality — they are the two most efficient image formats available today. AVIF sometimes achieves 5-15% better compression depending on image content. The key advantage of converting HEIC to AVIF is compatibility: AVIF works in 94% of browsers and is royalty-free, while HEIC requires specific platform support. You get virtually the same compression efficiency with much broader compatibility.