Skip to main content
Toolzum

Image format · .avif

AVIF: what it’s for

AVIF (built on the AV1 video codec) is the current efficiency champion for still images: dramatically smaller files than JPG or WebP at the same visual quality, with HDR, wide color, and transparency. It is the best choice for modern web delivery where every kilobyte counts.

Strengths

  • Best-in-class compression — often half the size of JPG at the same quality
  • HDR and wide-gamut color for future-proof photography
  • Alpha transparency plus animation support in one format
  • Our AVIF exports use quality 0.9 for near-transparent fidelity

Honest limits

  • AVIF encoding only works in Chromium browsers (Chrome, Edge) — Firefox and Safari show a clear error, so pick WebP there instead
  • Encoding is noticeably slower than JPG/WebP on large photos
  • Many desktop editors and social platforms cannot open AVIF yet — convert to JPG/PNG for sharing
  • Decoding fails on older browsers and OS versions; test your audience before committing

Free AVIF tools

Every tool runs in your browser — files never leave your device. Badges say exactly what each tool does with AVIF.

AVIF FAQs

Why does AVIF conversion fail in my browser?

AVIF encoding currently requires a Chromium browser (Chrome or Edge). Other browsers lack a canvas AVIF encoder, so the tool refuses upfront and suggests WebP instead of failing mysteriously.

AVIF vs. WebP — which should I use?

AVIF for maximum compression on modern audiences; WebP for universal compatibility today. Both beat JPG — the choice is efficiency versus reach.

Can I share AVIF photos on social media?

Most social apps reject AVIF uploads. Convert AVIF to JPG first for sharing — the file grows, but it will actually post.

Does AVIF conversion upload my images?

No. Encoding happens in your browser via canvas; nothing leaves your device.