What file formats do you support?

We support over 100 file formats including images (JPG, PNG, GIF, WebP, TIFF), documents (PDF, DOC, DOCX, TXT), videos (MP4, AVI, MOV), audio (MP3, WAV, FLAC), and many more specialized formats.

Yes, absolutely. We use enterprise-grade encryption for all file transfers. Your files are automatically deleted from our servers after conversion, and we never store or access your personal data.

What is the maximum file size?

The maximum file size for free users is 100MB per file. Premium users can convert files up to 1GB. For larger files, we recommend our batch processing feature.

How long does conversion take?

Most files convert in under 30 seconds. The exact time depends on file size and format complexity. Our advanced algorithms ensure the fastest possible conversion while maintaining quality.

Can I convert multiple files at once?

Yes! Our batch processing feature allows you to upload and convert up to 50 files simultaneously. This is perfect for bulk conversions and saves significant time.

Do I need to create an account?

No account is required for basic conversions. However, creating a free account gives you access to batch processing, file history, and priority support.

HEIC to AVIF

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

HEIC (Max. 10MB) • Up to 5 files in guest mode

Choose Files

Or upload from:

Temporary file processingFiles are uploaded for processing and are not retained as permanent storage. Read our File Processing & Retention Policy.

2. Conversion Settings

Convert From

Convert To

Image options

Width (px)

Height (px)

Strip image metadata (EXIF, etc.)

Advanced Options

Quality

Instant download after conversion

Why Choose Our Converter?

Fast, accurate HEIC to AVIF conversions tailored for photographers and designers seeking modern web-ready images.

Fast Multi-Threaded Conversion

Browser-based processing uses multiple CPU cores to convert HEIC photos to AVIF quickly without uploads.

High Fidelity Output

AVIF preserves visible detail with modern compression while maintaining perceptual quality from HEIC sources.

Browser & Platform Ready

Generate AVIF files optimized for web delivery that work on supported browsers and CMS platforms.

Client-Side Privacy

Files are processed in-memory in your browser; nothing is sent to external servers during conversion.

Batch Processing

Convert dozens of HEIC images in one session with predictable per-image timing and ZIP export option.

Smaller File Sizes

AVIF typically delivers smaller files than HEIC at equal perceptual quality, reducing bandwidth for galleries.

Frequently Asked Questions

Find answers to common questions about our file conversion service

Still have questions?

Can't find the answer you're looking for? Our support team is here to help.

Performance Estimates

Estimated conversion times based on typical hardware.

Conversion Speed Benchmarks

1-3 seconds

12 MP image processing

12 MP, 4000x3000

Fast

3-6 seconds

24 MP image processing

24 MP, 6000x4000

Moderate

8-15 seconds

48 MP image processing

48 MP, 8000x6000

Slow

Batch Conversion Estimates

Batch Size	Total Time	Avg per Image	Efficiency
10 images (12 MP each)	20-40 seconds	2-4 seconds	High
50 images (12 MP each)	1.5-3 minutes	1.8-3.6 seconds	High
100 images (12 MP each)	3-6 minutes	1.8-3.6 seconds	Moderate
200 images (12 MP each)	6-12 minutes	1.8-3.6 seconds	Moderate

Browser Compatibility

Format support across all major browsers

Support Across Browsers

Chrome

Supported

Full Support

Firefox

Supported

Full Support

Safari

Supported

Full Support

Edge

Supported

Full Support

Advanced Format Features Support

Features	Chrome	Firefox	Safari	Edge
Alpha Channel
ICC Profiles
EXIF Metadata
16-bit Depth

Device Compatibility

Seamless conversion across desktop, mobile and tablet

Desktop

Fast multi-core processing
Batch upload support

Mobile

Responsive mobile browser workflow
Instant photo conversion

Tablet

Full tablet browser support
Touch-friendly interface

Source vs Target Format

Key technical differences between formats

Feature	Source Format	Target Format
Compression	High efficiency	Uncompressed
File Size	Small	Large
Quality	High (compressed)	Lossless
Transparency	Supported	Supported
Metadata	EXIF, ICC	EXIF, ICC
Primary Use	Mobile capture & efficient storage	Web delivery & modern compression

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your HEIC source files.

Adjust Settings

Choose resolution, bit depth or alpha options if available.

Convert

Click convert to process files locally in browser.

Download Result

Save your AVIF files or download a ZIP archive.

Ready to Convert Your Files?

Use our high-speed converter to process your images now.

Start Converting Now

Tips and Best Practices

Optimize your conversion workflow with technical recommendations.

Prepare HEIC Masters

Verify HEIC embedded EXIF and XMP tags before conversion to ensure capture metadata is intact
Flatten or export HEIC edits from your camera app if you need a consistent rendered baseline
Check HEIC alpha presence in source files and note where transparency must be preserved
For multi-frame HEICs, extract desired frame first because this converter flattens sequences
Keep original HEIC masters archived for future retouching or print workflows

Configure AVIF Targets

Choose higher AVIF bit depth if source HEIC uses 10-bit to retain color gradation when supported
Enable alpha output when source HEIC includes transparency to preserve compositing layers
Select appropriate AVIF quality/compression to balance file size and visible detail
If web delivery is primary, prefer perceptual compression settings to reduce bandwidth while keeping look
Use ZIP packaging for batches to maintain original filename mapping and metadata bundles

Validate Visual Output

Compare source HEIC and AVIF at 100% zoom to inspect banding and highlight rolloff after conversion
Open AVIF outputs in target browsers and your editing app to confirm color profile rendering
Check for clipped shadows or highlights especially when bit depth is reduced during conversion
Verify alpha compositing by placing AVIF over representative backgrounds to ensure correct transparency
Spot-check EXIF tags such as timestamp and GPS in a metadata inspector after export

Workflow & Performance

Process HEIC batches in groups of 20–50 to minimize browser memory pressure and maintain throughput
Close heavy background applications before large conversions to free CPU and RAM
Keep originals locally; do not rely on AVIF as a master format when planning further edits
Test AVIF decoding performance on target client devices to ensure acceptable playback and load times
Download and back up converted AVIFs immediately to avoid data loss from browser crashes

Fast Processing

Close unused tabs for maximum throughput.

Client-Side Privacy

No media leaves your device.

Broad Compatibility

Output files work across all operating systems.

Pro Tip

For batch conversions, process in groups of 20-50 files to optimize memory usage and avoid browser slowdowns.

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