HEIC to AVIF Converter
Processing entirely on your device — large files may take a moment.
HEIC (High Efficiency Image Container) is the default photo format of iPhones. It stores photos in roughly half the space of JPG, but many programs and older systems still cannot open it directly. AVIF delivers the smallest files at top visual quality for modern websites — it is supported by all current browsers.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How to convert HEIC to AVIF
- 1
Select your files
Drag & drop your HEIC files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to AVIF". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted AVIF file individually, or grab everything at once as a ZIP archive.
Frequently asked questions
Is this HEIC to AVIF converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Will converting HEIC to AVIF reduce quality?
AVIF uses lossy compression, so a small amount of recompression is unavoidable. The quality slider lets you choose between maximum fidelity and smallest file size — the default is visually indistinguishable for photos.