Drop your images below and convert them to AVIF — the modern format that's up to 50% smaller than JPG. Bulk conversion, works on any device, and everything happens locally in your browser: your files are never uploaded.
AVIF (AV1 Image File Format) is the same format this site's other tools convert from — but it exists for a reason: it compresses photos roughly 50% smaller than JPG at the same visual quality. If you run a website, ship images to clients, or just want your photo library to take less space, AVIF is the modern choice. It also supports 10-bit color, HDR and transparency — things JPG never could.
JPG to AVIF typically saves 30–50% at equivalent quality. PNG to AVIF is even more dramatic: lossless AVIF can be 80–90% smaller than lossless PNG, which is why so many websites replaced their PNG assets with AVIF. The exact savings depend on the image — photos compress best, flat graphics slightly less.
All modern browsers — Chrome, Edge, Firefox, and Safari 16.4+ on desktop and iOS — open AVIF natively, and recent versions of Windows, macOS and Android do too. Some older apps, editors and devices are still catching up. For maximum compatibility with old software, keep the original file or use our AVIF to JPG converter in the other direction.
Yes. Conversion happens entirely in your browser using WebAssembly — your images are never uploaded to any server. We don't require an account, don't add watermarks, and don't share your files with anyone. The first conversion downloads a small encoder module (about 3 MB) once, then everything runs locally.
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