TIFF to AVIF Converter — Free, Online, No Upload

TIFF files come from professional environments: scanners, print workflows, archival systems, medical imaging, and scientific instruments. They're large by design — a single high-resolution TIFF from a flatbed scanner or print-ready layout can be 50–200 MB. Moving TIFF images to the web or into modern applications requires converting to something far more compact.

AVIF is the most efficient option for taking high-quality TIFF content to the web. A 100 MB TIFF can become a 2–5 MB AVIF at high quality settings — and the AVIF will often look indistinguishable from the TIFF on screen, even though it's 20–50× smaller. All modern browsers support AVIF, and platforms like Cloudflare Images, imgix, and Shopify CDN serve AVIF by default when supported. For photographers, archivists, and designers who need to share print-quality images online, AVIF is the format that closes the gap between professional quality and web practicality.

Because TIFF is lossless, the AVIF encoder starts from a perfect source. The converter uses quality 85, which produces visually excellent results for most web use. If the TIFF uses 16-bit color depth, note that AVIF encodes in 8-bit or 10-bit by default, so some dynamic range may be mapped down.

Typical sizes (12MP photo): TIFF 20–70 MB → AVIF 0.8–2 MB.

On the free tier, AVIF output has a repeating formatdrop.com watermark; Pro output doesn't.

AVIF output is encoded at quality 85 — a small file with no visible difference for most photos.