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Image Tool
HEIC to AVIF Converter
Turn iPhone HEIC photos into AVIF for modern websites.
Free to use
No account required
Stays on your device
Nothing uploaded
What this converter does
Browsers generally cannot display HEIC, but modern ones support AVIF. Converting lets you publish iPhone photos on the web in an efficient format. It cannot restore Apple-specific extras or original camera data beyond the decoded pixels.
Use this when building pages that accept AVIF and your originals are HEIC from an iPhone.
Related tools: HEIC to JPG · HEIC to WEBP
How to convert HEIC to AVIF
- Upload your HEIC file. Drop one or more .heic or .heif photos into the upload area (max 200 MB each). A preview is generated in the browser so you can confirm the photo.
- Set AVIF quality. AVIF is re-encoded with the quality slider (default 90%). Encoding can take longer than JPEG or WEBP. Lower values usually mean a smaller file. This does not restore quality already lost in the source.
- Convert to AVIF. Press Convert to AVIF. Processing runs in your browser — the file is not uploaded to ImgTask's server.
- Download the result. Download the converted AVIF file when it is ready. Conversion stayed on your device.
HEIC to AVIF for the web
The conversion exists because browsers do not show HEIC. AVIF is a publishable format, not a way to improve the iPhone original.
Formats, limits, and privacy
Upload limit: 200 MB per image, up to 20 files at once. Images above about 100 megapixels may fail in the browser. Conversion re-encodes pixels and strips EXIF, GPS, XMP, ICC, and DPI metadata; orientation is applied visually first.
Limitations: Confirm AVIF support in your CMS or CDN. Quality settings affect size and detail. Apple-specific HEIC features may not carry over. Metadata is stripped.
Privacy: Your image is processed locally in your browser and is not uploaded to ImgTask's server. Image files never leave your device. No account is needed and results carry no watermark.
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Frequently Asked Questions
Use JPEG when the recipient or form may not open AVIF. Use AVIF when you control the website and have tested support.
Not always. HEIC is already efficient. Compare the output instead of assuming a saving.
You can convert images up to 200 MB each, and up to 20 files at once. Very large pixel dimensions may still fail in the browser even when the file is under the upload limit.
Conversion runs in your browser. Your image is processed locally in your browser and is not uploaded to ImgTask's server. Image files never leave your device. If the browser cannot process the file, you will see an error and nothing is uploaded.
No. Conversion re-encodes pixels and strips EXIF, GPS, XMP, ICC, and DPI metadata. EXIF orientation is applied visually first so portrait photos stay upright. Live Photos, depth maps, and similar extras are not stored in the output.
Animation is not preserved. Animated GIFs (and animated WEBP/AVIF when the browser decodes only a still) use the first frame.
AVIF can keep an alpha channel when the source has one. Conversion cannot invent transparency that is not in the source pixels.
Blog
Guides and tips from the blog
Short, practical articles to get more out of ImgTask and your image or PDF workflow.
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