HEIC to AVIF Converter
Convert HEIC images to AVIF and reduce file sizes without visible quality loss. Free, instant, and 100% private.
Want the smallest possible file from your iPhone photos without sacrificing quality? Converting HEIC straight to AVIF skips JPG entirely and gives you a next-gen image roughly 50% smaller than JPG at the same visual fidelity, ready for modern web delivery. You will most often encounter HEIC files as photos shot on iPhone or iPad, images exported from Apple Photos or iCloud, screenshots taken on macOS Ventura and later, and AVIF is the obvious destination when your goal is high-traffic websites. Converter.Plus runs the whole HEIC→AVIF conversion locally in your browser — there is no upload, no signup, no watermark, and no per-file size cap. Drop a single file or a whole batch and grab the results as individual downloads or a single ZIP.
Drop HEIC files here
or click to select from your device
Drag up to 50 files·or a .zip of images
How to convert HEIC to AVIF
- Open the HEIC to AVIF converter: Go to converter.plus/heic-to-avif in any modern browser on your computer or phone.
- Add your HEIC files: Drag and drop your HEIC files onto the upload area, or click it to browse your device and select them.
- Choose output format and quality: Select your preferred quality setting. The default is optimized for a great balance of file size and visual quality.
- Click Convert: Click the Convert button. Converter.Plus processes all files instantly in your browser — no upload or waiting required.
- Download your AVIF files: Download each converted image individually, or click Download All to save a ZIP archive containing all converted files.
Why use this HEIC to AVIF converter
- ✓100% private — your HEIC files are converted in your browser and never uploaded to a server.
- ✓Free with no signup, no watermark, no per-file size limit, and no daily quota.
- ✓AVIF output is typically 25–50% smaller than JPG at the same visual quality, ideal for fast websites and lower bandwidth.
- ✓Batch ready: drop dozens of HEIC files at once and download them individually or as a single ZIP.
- ✓Works offline once the page has loaded — the conversion code is cached as a Progressive Web App.
- ✓No tracking pixels and no ad-personalisation cookies on the conversion result page.
About HEIC → AVIF conversion
Want the smallest possible file from your iPhone photos without sacrificing quality? Converting HEIC straight to AVIF skips JPG entirely and gives you a next-gen image roughly 50% smaller than JPG at the same visual fidelity, ready for modern web delivery.
High Efficiency Image Container (HEIC) was introduced by Apple in 2017 with iOS 11 as the default iPhone camera format. HEIC is built on the HEIF standard from MPEG and uses the HEVC (H.265) codec to deliver roughly 50% smaller files than JPG at the same quality. Apple chose it so iPhones could double effective storage without sacrificing photo fidelity. You will most often encounter HEIC files as photos shot on iPhone or iPad, images exported from Apple Photos or iCloud, screenshots taken on macOS Ventura and later.
Windows, Android, and older versions of Photoshop, Lightroom, and most online services do not open HEIC reliably. Users frequently see blank thumbnails or "unsupported format" errors. That is the friction this converter removes — by producing a clean AVIF you can drop into any AVIF workflow without surprises.
About HEIC to AVIF Conversion
Want the smallest possible file from your iPhone photos without sacrificing quality? Converting HEIC straight to AVIF skips JPG entirely and gives you a next-gen image roughly 50% smaller than JPG at the same visual fidelity, ready for modern web delivery.
High Efficiency Image Container (HEIC) was introduced by Apple in 2017 with iOS 11 as the default iPhone camera format. HEIC is built on the HEIF standard from MPEG and uses the HEVC (H.265) codec to deliver roughly 50% smaller files than JPG at the same quality. Apple chose it so iPhones could double effective storage without sacrificing photo fidelity. You will most often encounter HEIC files as photos shot on iPhone or iPad, images exported from Apple Photos or iCloud, screenshots taken on macOS Ventura and later.
Windows, Android, and older versions of Photoshop, Lightroom, and most online services do not open HEIC reliably. Users frequently see blank thumbnails or "unsupported format" errors. That is the friction this converter removes — by producing a clean AVIF you can drop into any AVIF workflow without surprises.
AVIF is the AV1-based image format standardized in 2019. AVIF achieves up to 50% smaller files than JPG at the same visual quality and is supported natively in Chrome, Firefox, Safari, and Edge — covering over 90% of global web traffic. It is the obvious destination when your goal is high-traffic websites and image optimization at scale.
Keep quality at 90–95% for editing workflows; 85% is plenty for sharing on social platforms. Use AVIF for production web delivery where bandwidth and Core Web Vitals matter most. Converter.Plus handles the entire HEIC→AVIF pipeline locally in your browser using modern WebAssembly and Canvas APIs — your files never leave your device, there is no signup, no watermark, and no per-file size cap. Drop a single image or a whole batch and grab the results as individual downloads or a single ZIP.
Frequently Asked Questions
What is HEIC?
Apple's default photo format used by iPhone and iPad, offering excellent compression but limited compatibility outside Apple devices.
Why convert HEIC to AVIF?
AVIF offers significantly better compression than JPG and PNG at the same visual quality — making files smaller and websites faster. It is widely supported in all modern browsers.
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Privacy & trust
- •Your HEIC stays on your device. Conversion runs locally via the browser's Canvas, WebAssembly, and image-decoding APIs.
- •No account, no email, no payment information collected — Converter.Plus is free for personal and commercial use.
- •No watermarks, no upsells inside the converted AVIF, and no compression caps on the output file.
- •Open-source build pipeline — every release is reproducible from the public source and pinned dependencies.