HEIC to AVIF conversion is the process of decoding images stored in the HEIC (High Efficiency Image Container) format and re-encoding them into AVIF (AV1 Image File Format). This conversion preserves image content while changing container, codec, and compression characteristics to take advantage of AVIF's modern AV1-based compression and feature set.
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Read guide →Drag your .HEIC file from your computer or use the browse function.
Confirm .avif as the selected destination format.
Click "Convert" and download your converted .AVIF file once ready.
HEIC files typically use the MIME type image/heic and are encoded using HEVC (High Efficiency Video Coding). AVIF files use the MIME type image/avif and rely on the AV1 codec, which offers superior compression. HEIC is mainly used for storing photos on Apple devices, while AVIF is designed for efficient web image delivery with support for HDR and alpha transparency.
The AVIF (.AVIF) format is commonly used for image. Understanding its characteristics can be helpful when converting to or from other formats like HEIC.
While specific technical details aren't available here, AVIF files generally serve the purpose of storing image effectively within their domain.
Convert your HEIC images to AVIF quickly and effortlessly using our online converter. Perfect for users seeking high compression and superior image quality, our tool provides a seamless experience without software installation.
HEIC is a modern image format commonly used by Apple devices, offering efficient compression and support for multiple images in one file. AVIF, based on the AV1 codec, provides even better compression efficiency and broader compatibility with web technologies. While HEIC is ideal for Apple ecosystems, AVIF is preferred for web use due to its open standards and smaller file sizes.
Keep target AVIF quality between 60–80 (or equivalent CRF) to preserve detail while gaining compression; very low quality (<40) will show visible artifacts.
For typical photos, aim for output files roughly 30–60% smaller than HEIC while visually matching quality; test a few images to set the best preset.
Use lossless AVIF only when exact pixel preservation is required (e.g., graphics); note lossless files can be larger and slower to encode.
Batch convert images with a queue or command-line tool to preserve metadata consistently, but watch memory/CPU use—large parallel batches can slow or fail on limited systems.
This HEIC to AVIF converter made my workflow so much easier and faster.
Emma R.
Photographer
The quality and compression balance of AVIF after conversion is outstanding.
Liam S.
Web Developer
Finally, a simple tool that converts HEIC images to AVIF without losing detail.
Olivia M.
Graphic Designer
Start your free HEIC to AVIF conversion now.
Drag your file here to to upload.
Up to 250MB
Format limitations: some older decoders/OSes may not support AVIF or AVIF alpha; transcoding animated HEIC sequences to animated AVIF may require specialized tools and more processing time.