HEIF to AVIF Converter

Convert HEIF to AVIF online for free. Fast, secure, and high-quality HEIF to AVIF conversion.

File Converter Pro – Advanced Processing

ads_code

📤

Choose files to convert

Professional conversion with advanced processing • Supports 2000+ file formats • Drag & drop any file here

📎 Add More Files

Add additional files to your conversion queue

🔗 Add File from URL

File URL:

📁 0 files selected

🚀 Bulk Conversion

💡 Smart bulk conversion applies to all files except those with custom individual settings

Format:

Quality:

⚙️ Bulk Advanced Image Processing

💡 Professional image processing algorithms – Apply advanced settings to all image files at once

⚙️ Bulk Advanced Image Processing Options

Resize Output Image

Compression Level

Image Quality

Make Color Transparent

Transparent Color

Auto Orient

Strip Metadata

🎉 All files converted successfully!

⚙️ Advanced Options (Optional)

File name: sample.jpg (671.00 B)

Image Options

Resize Output Image

Choose a method if you want to resize the output image.

Compression Level

Choose a compression level to reduce output file size. Lossy method reduces file size at the expense of image quality

Image Quality

100

Lower values give better compression (at the cost of image quality)

Choose a color to make transparent?

Yes

Use this option to make a transparent background in your PNG output.

Choose a color to make transparent

Choose a color using the color picker or enter a hex color value. (eg. #FFFFFF)

Auto Orient – Correctly orient the image using the gravity sensor data stored in EXIF

Strip Metadata – Strip the image of any profiles, EXIF, and comments to reduce size

Understanding HEIF and AVIF File Formats

What is HEIF File Format

HEIF (High Efficiency Image Format) is a modern image container format commonly used for storing individual images and image sequences with efficient compression using HEVC. It supports features like 16-bit color depth, transparency, and multiple images per file, widely used in smartphones and digital cameras.

What is AVIF File Format

AVIF (AV1 Image File Format) is a newer, open-source image format based on the AV1 video codec, providing superior compression efficiency and quality compared to older formats. AVIF supports both lossy and lossless compression, HDR, wide color gamut, and transparency, making it ideal for web and application graphics.

Why Convert HEIF to AVIF?

Better Compression: AVIF generally achieves smaller file sizes than HEIF while maintaining the same or better visual quality.
Open and Royalty-Free: AVIF is free from patent restrictions, unlike HEIF’s reliance on HEVC licensing.
Advanced Features: AVIF supports HDR, animation, wide color gamut, and alpha transparency.
Improved Web Support: AVIF is increasingly supported by modern browsers, enhancing web performance.
Future-Proof Format: AVIF’s versatile features make it ideal for next-generation imaging needs.
High Quality for Streaming and Storage: Combines efficient compression with high image fidelity.

When Should You Convert HEIF Files to AVIF?

When optimizing images for faster web loading and reduced bandwidth.
For cross-platform compatibility beyond HEIF-supporting devices.
When working with HDR content and wide color gamuts.
For professional and personal use where advanced image features are needed.
When archiving images with efficient, open-source compression.

HEIF to AVIF File Comparison

Feature	HEIF (High Efficiency Image File)	AVIF (AV1 Image File Format)	Winner
File Size	Very compact; supports lossy/lossless HEVC, HDR, alpha, animation	Even smaller for same quality; superior compression at low bitrates	AVIF
Compression	HEVC/H.265; up to 16-bit, wide color/HDR, alpha, sequences	AV1 codec; up to 12-bit+, wide color/HDR, alpha, multi-image/animation	AVIF
Web & App Support	Limited to Apple and some third-party apps/platforms	Universal browser support (Chrome, Firefox, Edge); rapid adoption in web/app ecosystems	AVIF
Quality & Bit Depth	Up to 16-bit/channel, full HDR, alpha channels, sequences/animations	Up to 12‑bit/channel (most implementations), HDR, alpha, advanced anti-banding	Depends
Transparency	Full alpha channel; overlays, masks; up to 16-bit/channel	Full alpha channel in lossy/lossless, 10–12 bit depth	Tie
Animation	Multi-image, short animation (Live Photos, bursts)	Animated AVIF, multi-frame, efficient with excellent quality	AVIF
Licensing	HEVC is patent-encumbered, licensing needed for full encode/decode stack	AV1 is open, royalty-free, Alliance for Open Media standard	AVIF
Editing & Workflow	Flexible for editing, non-destructive edits, live metadata	Future-focused: advanced tools, easy transcode from JPEG, layer/animation support	AVIF

How to Convert HEIF to AVIF Online free in 3 Easy Steps

Click the “Choose Files” button to upload your files
Select your preferred File format from the “Convert To” drop-down list
Now press the Orange Button “Convert” to start the conversion

First: Upload Your Files

Simply drag and drop images or click “Upload” button. Also, convert up to 20 files at once to save time, making large jobs effortless.

Second: Select Quality Settings

Choose from multiple File Format to start the conversions. For most needs, “Standard (85)” delivers amazing results with tiny file sizes. For photo editing, consider “High Quality.” Although high-quality settings retain more visual detail, standard settings offer smaller files for web use.mazing results with tiny file sizes.

Third: Download Instantly

After conversion, simply download your optimized files. Furthermore, we delete your uploads automatically after 1 hour, so your data stays private.

Benefits of HEIF to AVIF Converter Online

Fast and User-Friendly: Instant HEIF to AVIF conversion without software installations.
Batch Processing: Convert multiple images at once saving time and effort.
Secure and Private: Encrypted uploads and automatic file deletion protect user data.
No Account Required: Free to use, no watermarks, and no sign-up needed.
Cross-Platform: Works across Windows, Mac, Linux, Android, and iOS devices.

Features of Our HEIF to AVIF Converter

Supports uploads from local devices, URLs, and cloud storage.
Customizable output quality and compression settings.
Maintains image metadata, alpha transparency, and color profiles.
Fast processing with instant downloads available.
Designed for both beginners and professional users.

Before & After Example

Before Conversion (HEIF):
HEIF offers excellent image compression with HEVC technology and supports advanced features like multiple frames and transparency.

After Conversion (AVIF):
Converting to AVIF enhances compression efficiency, reducing file size further while supporting HDR, wide color, and animation. AVIF files provide excellent compatibility with modern web standards and offer a robust future for high-quality image storage and delivery.

HEIF to Other File Converter

Whenever you want smooth, secure file handling, FreeFastConverter.com stands out. Since time is valuable, why wait? Try our HEIF to Other file converter now and notice the difference in speed, space, and peace of mind.

HEIF to BMP HEIF to BPG HEIF to DDS HEIF to DPX HEIF to EPS HEIF to FLIF HEIF to GIF HEIF to ICO HEIF to JPEG HEIF to JPG HEIF to JXL HEIF to PDF HEIF to PNG HEIF to PS HEIF to SVG HEIF to TGA HEIF to TIFF HEIF to WEBP

Other File Format to HEIF Converter

Whenever you want smooth, secure file handling, FreeFastConverter.com stands out. Since time is valuable, why wait? Try our Other file TO HEIF converter now and notice the difference in speed, space, and peace of mind.

Fast, Secure, and Trusted Conversion

At Free Fast Converter, your security and satisfaction are our highest priorities. We don’t just provide lightning-fast file conversions; we relentlessly protect your privacy throughout every step of the process. Using industry-leading encryption, all your uploads and downloads remain fully secure—shielded from unauthorized access from start to finish. Moreover, our servers automatically delete your files immediately after conversion, ensuring no data is stored longer than necessary. When you choose Free Fast Converter, you’re choosing a partner committed to delivering fast, reliable service without compromising your digital security.

Learn more about our commitment to security

SSL/TLS Encryption

Secured Data Centers

Access Control and Authentication

Valuable Image Tools

Here is a list of image tools to further edit your images.

Resize Image – Quick and easy way to resize an image to any size
Crop Image – Use this tool to crop unwanted areas from your image
Image Compressor – Reduce image files size by up to 80 to 90% using this tool
Color Picker – Quickly pick a color from the color wheel or from your image online
Enlarger Your Image – A fast way to make your images bigger
Collage Maker – Create a beautiful photo collage from your photos

Frequently Asked Questions

HEIF is a modern image format designed for high compression efficiency and excellent visual quality, supporting features like HDR and transparency for web and mobile use.

AVIF is one of the most widely supported image formats, compatible across almost all devices and applications. It offers simple, fast compression and is ideal for general photo sharing even though its compression is lossy.

Yes, AVIF uses lossy compression which can reduce image detail and quality depending on compression levels. However, it remains adequate for most casual and web uses, balancing size and quality.

Yes, batch conversion of HEIF files to AVIF is supported by many online and desktop tools, streamlining large image processing tasks.

Trusted converters use secure encryption during file upload and delete files automatically after conversion to ensure user privacy and data security.