Convert PNG to AVIF — Maximum Compression with Transparency

Which Browsers Display AVIF?

AVIF (AV1 Image File Format) was introduced in 2019 by the Alliance for Open Media — a coalition of Google, Mozilla, Netflix, Apple, Microsoft, and others. Browser adoption took four years to reach broad coverage:

• Chrome 85+ (August 2020): initial support, then stable throughout.
• Firefox 113+ (May 2023): after Mozilla revised its initial 86–112 implementation multiple times.
• Safari 16.4+ (March 2023): initial support on macOS and iOS.
• Edge 121+, Opera 71+: caught up, available everywhere now.

Global reach in early 2026: around 95 percent. The remaining 5 percent are mainly older Android devices on pre-2022 versions and Safari iOS below 16.4. For that audience, the <picture> element with a fallback chain is the clean path:

<picture>
  <source srcset="logo.avif" type="image/avif" />
  <source srcset="logo.webp" type="image/webp" />
  <img src="logo.png" alt="Logo" width="320" height="120" />
</picture>

Modern browsers get AVIF (smallest file), mid-tier browsers get WebP (good reach), legacy gets PNG (universal). The picture element costs no lookup tax — the browser decides at parse time.

When Should I Pick AVIF Over WebP?

Both formats win against PNG. The more interesting question: AVIF or WebP?

Pick AVIF when:

• Hero images dominate Largest Contentful Paint — the additional 20–30% savings over WebP show up in LCP and bandwidth.
• Bandwidth-critical markets, especially mobile-first delivery in emerging markets where every kilobyte counts.
• A <picture> setup is already planned — AVIF is the first source with no risk.
• HDR or 12-bit color depth are required — WebP doesn’t support that.

Stick with WebP when:

• Standard web images without extreme size constraints.
• Server-side encoding speed is critical — AVIF encoding is significantly slower than WebP encoding (you don’t notice this in this tool because it runs in the user’s browser, not on a CDN).
• Legacy devices are in your audience — 97% WebP reach vs 95% AVIF reach.

Does AVIF Keep Transparency?

Yes, fully. AVIF supports a full alpha channel — lossless or lossy — and reproduces transparency with the same accuracy as WebP or PNG. Logos, icons, and cut-out subjects lose no edge detail.

On top of that, AVIF can do what PNG and WebP can’t:

• HDR (High Dynamic Range): real 10- or 12-bit color depth per channel, relevant for Display-P3 content on modern screens.
• Wide color gamut: Display-P3 and Rec. 2020 color spaces are natively supported.
• Chroma subsampling options: 4:4:4, 4:2:2, 4:2:0 selectable — for maximum quality in photography workflows.

These features especially benefit photographer portfolios where color fidelity matters beyond the last 5 percent bandwidth saving.

Is My File Uploaded or Tracked?

Conversion runs entirely in your browser. Your PNG files are never sent to, stored on, or analyzed by a server. No tracking, no cookie banner, no sign-up. After the first load, the tool also works offline — the browser APIs needed have shipped in all current browsers since 2018.

Which Image Tools Are Related?

When your workflow knows other source or target formats:

• Image Format Converter — hub with format comparison and all four format pairs.
• PNG to WebP — when broader browser compatibility matters.
• JPG to AVIF — when your sources are photos, not logos or screenshots.
• Background Remover — ML-based subject extraction as preparation for transparent AVIF export.