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  1. Convert Online
  2. Image Converters
  3. HEIF to AVIF

Convert HEIF to AVIF

This HEIF 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
HEIF 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 makes a larger file. Lower quality reduces file size at the cost of image detail.
Higher quality looks better but makes a larger file. Lower quality reduces file size at the cost of image detail.
4
Higher effort values take longer to encode but can make smaller files.
Higher effort values take longer to encode but can make smaller files.
4:2:0
Standard slightly reduces file size; Maximum keeps the best color accuracy for graphics or text.
Standard slightly reduces file size; Maximum keeps the best color accuracy for graphics or text.
Lossless Compression
No
Encode without quality loss. Produces larger files but preserves exact original data.
Encode without quality loss. Produces larger files but preserves exact original data.
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 is resized to match new dimensions.
Determines how the image is resized to match new dimensions.
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 make them look blurry.
Avoids stretching small images bigger, which can make them look blurry.
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 HEIF to AVIF Converter?

  1. Choose Files: Click 👆 on the Choose Files button and choose input HEIF files, or you may drag and drop HEIF 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 HEIF files are sent to the server for conversion. This all happens in a lightening speed ⚡.
  4. Output: Once the HEIFs 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.

HEIF vs AVIF :— Comparison Table

Comparison between HEIF and AVIF
HEIF AVIF
Format HEIF AVIF
Full name High Efficiency Image File Format AV1 Image File Format
Type image image
Compression lossy or lossless (HEVC-based) lossy/lossless
Extensions
  • .heif
  • .heic
  • .avif
MIME type image/heif image/avif
Common MIME types
  • image/heif
  • image/heic
  • image/avif
Developer Moving Picture Experts Group (MPEG) Alliance for Open Media (AOMedia)
Introduced 2015 2019
Open standard Yes Yes
Specification https://www.iso.org/standard/66067.html https://aomediacodec.github.io/av1-avif/
Description HEIF (High Efficiency Image File Format) is a modern container format for individual images and image sequences. It typically uses the HEVC (High Efficiency Video Coding, also known as H.265) codec for compression, allowing it to store images at a much smaller file size than JPEG while maintaining equal or better visual quality. HEIF supports advanced features like multiple images in a single file, image sequences, transparency, high dynamic range (HDR), depth maps, and rich metadata. 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 on smartphones while minimizing storage space
  • Capturing live photos or short bursts with minimal file size increase
  • Archiving images with embedded depth data for portrait mode editing
  • Delivering high-quality visuals in bandwidth-constrained environments
  • 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
  • iOS and macOS devices use HEIC by default for camera images to save space while retaining quality
  • Cloud storage providers optimizing bandwidth by storing HEIF instead of JPEG
  • Professional photographers capturing HDR images in a compact file size
  • Social media platforms testing HEIF to reduce upload times without sacrificing quality
  • 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 iOS 11 and later
  • macOS High Sierra and later
  • Windows 10 (with HEIF Image Extensions)
  • Android 9 (Pie) and later (device-dependent)
  • Image viewers and editors like Photoshop, GIMP (with plugins), and Preview
  • 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, Sharp (with libvips HEIF support) | Write: libheif, ImageMagick (HEIC enabled) Read: libavif, ImageMagick, Sharp, Squoosh | Write: libavif, ImageMagick, Sharp
Related formats
  • JPEG
  • WebP
  • AVIF
  • WebP
  • JPEG XL
  • HEIF
Popularity medium-high growing
Aliases
  • High Efficiency Image File Format
  • HEIC
  • 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
  • Monochrome
  • YCbCr
  • RGB
Alpha support optional optional
Transparent color Yes Yes
Animation support Yes — HEIF supports image sequences for animation, similar to animated GIFs or APNGs, but with far greater compression efficiency and quality. 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
  • Depth maps
  • Auxiliary images
  • EXIF
  • XMP
  • ICC profiles
Compression method HEVC (H.265) intra-frame compression AV1 intra-frame coding within HEIF container
Interlacing none not applicable
Advantages
  • Much smaller file sizes than JPEG for equivalent quality, thanks to HEVC compression.
  • Supports features JPEG cannot, such as HDR, transparency, animations, and multiple images per file.
  • Enables storage of auxiliary data like depth maps for advanced editing features.
  • Suitable for both lossy and lossless image storage.
  • 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
  • Not as universally supported as JPEG or PNG, especially on older devices and browsers.
  • Requires more processing power to encode/decode due to HEVC compression.
  • Patent/licensing restrictions on HEVC can limit adoption in open-source projects.
  • Some software still lacks full support for advanced HEIF features.
  • 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 While HEIF is efficient, very high-resolution or HDR images with multiple embedded sequences can still create large files; decoding them may be intensive for low-power devices. File sizes can be extremely small for photos and graphics, but encoding time grows sharply for very high resolutions or complex animations.