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  1. Convert Online
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  3. HEIC to AVIF

Convert HEIC to AVIF

This HEIC to AVIF converter lets you easily convert one or more images online. Upload images, fine-tune settings like quality and background color, and convert them to AVIF instantly — all using a fast and interactive interface. No installation or signup required.


or
drop your
HEIC files here

Converted Files

Disclaimer:Please be aware that due to limited server storage, converted files will be automatically purged over time for optimal server performance.

Conversion Settings

80
102030405060708090100
Higher quality looks better but creates larger files. Lower quality reduces size but may cause visible artifacts.
Higher quality looks better but creates larger files. Lower quality reduces size but may cause visible artifacts.
4
Controls how much CPU time is spent compressing. 0 is fastest, 9 is slowest but may yield smaller files.
Controls how much CPU time is spent compressing. 0 is fastest, 9 is slowest but may yield smaller files.
4:2:0
Standard reduces file size slightly; Maximum preserves the most color detail, which is better for graphics and text.
Standard reduces file size slightly; Maximum preserves the most color detail, which is better for graphics and text.
Lossless Compression
No
When enabled, no quality is lost during compression. File sizes will be larger.
When enabled, no quality is lost during compression. File sizes will be larger.
px
Resize the image to a specific width in pixels. Leave blank to keep original.
Resize the image to a specific width in pixels. Leave blank to keep original.
px
Resize the image to a specific height in pixels. Leave blank to keep original.
Resize the image to a specific height in pixels. Leave blank to keep original.
cover
Determines how the image should be adjusted when resizing.
Determines how the image should be adjusted when resizing.
centre
Which part of the image to prioritize if cropping is required.
Which part of the image to prioritize if cropping is required.
Prevent Enlarging Small Images
Yes
Avoids stretching small images bigger, which can reduce sharpness.
Avoids stretching small images bigger, which can reduce sharpness.
Fix Orientation
Yes
Rotates the image automatically if it contains orientation information from the camera.
Rotates the image automatically if it contains orientation information from the camera.

How to use this HEIC to AVIF Converter?

  1. Choose Files: Click 👆 on the Choose Files button and choose input HEIC files, or you may drag and drop HEIC files to the drop area. You may choose one or more image files. The chosen files are displayed with size information in the same drop area.
  2. Conversion Settings: You may change the conversion parameters like quality 🎛, background color, etc., using the sliders, or color input buttons.
  3. Conversion: Now you can click on the Convert button. This is where the ⛄ magic happens. Your HEIC files are sent to the server for conversion. This all happens in a lightening speed ⚡.
  4. Output: Once the HEICs are converted ✅ to AVIFs, they appear in the download section.
  5. Download Files: You may click 👆 on the big Download button to download ↓ all your converted AVIFs, or you may download individual AVIF by clicking on the respective download button.
  6. Options: There is also a link 🔗 which you can Copy and share it using which you can download the converted AVIF files.

HEIC vs AVIF :— Comparison Table

Comparison between HEIC and AVIF
HEIC AVIF
Format HEIC AVIF
Full name High Efficiency Image File Format AV1 Image File Format
Type image image
Compression lossy or lossless lossy/lossless
Extensions
  • .heic
  • .heif
  • .avif
MIME type image/heic image/avif
Common MIME types
  • image/heic
  • image/heif
  • image/avif
Developer Moving Picture Experts Group (MPEG) and Apple Inc. Alliance for Open Media (AOMedia)
Introduced 2015 2019
Open standard Yes Yes
Specification https://mpeg.chiariglione.org/standards/mpeg-h/high-efficiency-image-file-format https://aomediacodec.github.io/av1-avif/
Description HEIC (High Efficiency Image Coding) is an image container format based on the HEIF (High Efficiency Image File Format) standard, typically using HEVC (H.265) compression. It is designed to store high-quality images and sequences of images in smaller file sizes compared to JPEG, without sacrificing visual fidelity. HEIC supports advanced features such as multiple images per file, transparency, HDR (High Dynamic Range), and rich metadata. It is the default format for photos taken on many Apple devices running iOS 11 or later. AVIF (AV1 Image File Format) is a modern image format that uses the AV1 video codec for compression, packaged within the HEIF container. It offers exceptional compression efficiency, producing significantly smaller files than JPEG or PNG at equivalent visual quality, and supports advanced features like HDR, wide color gamut, alpha transparency, and both lossy and lossless modes. AVIF is designed for the web and mobile era, reducing bandwidth usage while maintaining visual fidelity.
Typical usage
  • Storing high-quality photos with reduced file sizes on smartphones and tablets
  • Capturing and storing HDR images on mobile devices
  • Organizing multiple related images in a single file (e.g., Live Photos, bursts)
  • Archiving photos where storage space is limited but quality matters
  • Web images optimized for speed and low bandwidth usage
  • High-quality photography with smaller file sizes than JPEG
  • Graphics and UI elements with alpha transparency
  • HDR images for next-generation displays
Typical use cases
  • Mobile photography on Apple devices where efficient storage is essential
  • Distributing images with both standard and HDR versions in the same container
  • Maintaining sequences of shots (e.g., photo bursts) without separate files
  • Archiving professional-quality images with metadata in compact form
  • Replacing JPEG for high-resolution product photos in e-commerce sites to improve load times.
  • Serving responsive images in web apps with smaller bandwidth costs.
  • Distributing HDR wallpapers and artwork that retain detail and dynamic range.
  • Reducing storage costs for large-scale image hosting platforms.
Widely supported by
  • Apple devices (macOS High Sierra+, iOS 11+)
  • Windows 10/11 with HEIF Image Extensions installed
  • Image editors such as Affinity Photo, Pixelmator, Adobe Lightroom (latest versions)
  • Modern browsers (Chrome, Firefox, Safari with some limitations, Edge)
  • Image processing tools like libavif, ImageMagick (with AVIF support compiled)
  • Operating systems with native support (Android 12+, macOS Ventura+, Windows 10 21H2+)
Tooling Read: libheif, ImageMagick (with HEIF support), Photos app on iOS/macOS | Write: libheif, Apple Photos app, Professional camera apps with HEVC support Read: libavif, ImageMagick, Sharp, Squoosh | Write: libavif, ImageMagick, Sharp
Related formats
  • JPEG
  • WebP
  • AVIF
  • WebP
  • JPEG XL
  • HEIF
Popularity medium growing
Aliases
  • HEIF
  • High Efficiency Image File Format
  • High Efficiency Image Coding
  • AV1 Image File Format
Magic bytes 00 00 00 ?? 66 74 79 70 68 65 69 63 00 00 00 ?? 66 74 79 70 61 76 69 66
Bit depths
  • 8
  • 10
  • 12
  • 8
  • 10
  • 12
Color models
  • YCbCr
  • RGB
  • YCbCr
  • RGB
Alpha support optional optional
Transparent color Yes Yes
Animation support Yes — HEIC can store multiple frames, enabling animations or sequences similar to GIF but at much smaller sizes. Yes — AVIF supports animated sequences similar to animated WebP or GIF, using AV1 video encoding for each frame.
ICC profile Yes Yes
Metadata
  • EXIF
  • XMP
  • IPTC
  • EXIF
  • XMP
  • ICC profiles
Compression method HEVC (H.265) for lossy, optional lossless coding in HEIF standard AV1 intra-frame coding within HEIF container
Interlacing none not applicable
Advantages
  • Produces significantly smaller files than JPEG at equivalent visual quality.
  • Supports advanced features such as HDR, wide color gamut, transparency, and multiple images per file.
  • Capable of storing animations or image sequences efficiently.
  • Designed for modern devices and workflows with high-resolution photography.
  • Achieves much smaller file sizes than JPEG, PNG, or even WebP at similar or higher visual quality.
  • Supports HDR (High Dynamic Range), wide color gamut, and deep bit depths (10–12 bits).
  • Offers both lossy and lossless compression in the same format.
  • Supports transparency, making it a viable PNG/WebP replacement in many workflows.
  • Can store animations efficiently with better compression than GIF or WebP.
Disadvantages
  • Limited compatibility outside modern operating systems and updated software.
  • Encoding and decoding require more processing power compared to JPEG or PNG.
  • Not natively supported in older browsers or devices without additional codecs or extensions.
  • Encoding is significantly slower than JPEG or WebP due to the complexity of AV1 compression.
  • Browser and software support, while growing, is not yet universal, which can require fallbacks.
  • Not all tools fully support advanced features like HDR metadata or animation.
  • Older devices and OS versions may be unable to display AVIF without updates or additional libraries.
Max size note File size varies greatly depending on compression settings, bit depth, and inclusion of multiple images; generally much smaller than PNG or JPEG for similar quality. File sizes can be extremely small for photos and graphics, but encoding time grows sharply for very high resolutions or complex animations.