Convert PNG to AVIF Online

Free and fast PNG to AVIF converter with excellent compression and full transparency support. Works instantly on any device — no signup required.

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Why Convert PNG to AVIF?

AVIF (AV1 Image File Format) is a next-gen format with outstanding efficiency:

  • Superior compression: Often 30–50% smaller than PNG at similar quality.
  • Modern codec: Based on the AV1 standard.
  • High fidelity: Great detail retention at lower sizes.
  • Web performance: Smaller images = faster pages and better Core Web Vitals.

How to Convert PNG to AVIF Online

  1. Click Upload PNG and select your file.
  2. Wait for processing and optimization.
  3. Click Download AVIF to save your image.

The converter auto-balances quality and size for common web use.

AVIF vs PNG Comparison

  • File size: AVIF is typically 30–50% smaller than PNG.
  • Quality: AVIF maintains strong quality at lower bitrates.
  • Transparency: Both support alpha transparency.
  • Browser support: AVIF works in modern browsers (provide fallback if needed).

Supported Limits & Formats

  • Accepted input: PNG (image/png)
  • Maximum file size: up to 16 MB per file
  • Output: AVIF (.avif, MIME image/avif)
  • Encoding: Quality ≈ 80, speed 4, 4:4:4 subsampling to keep edges clean

Troubleshooting

  • Older browsers: Use the <picture> element with PNG/WebP fallback.
  • Halo on edges: 4:4:4 helps; if still visible, start from higher-res PNG or refine the alpha.
  • Need lossless: Consider PNG for pixel-perfect needs, or set AVIF to lossless in advanced workflows.
  • Upload fails: Ensure the file is PNG and ≤ 16 MB.

Use Cases: When to Convert PNG to AVIF

  • Web optimization: Reduce payload for icons, UI, and graphics with transparency.
  • Mobile apps: Lower bandwidth and storage usage.
  • Large libraries: Save disk space without obvious quality loss.

  • Yes, the converter is completely free with no hidden charges or subscriptions.
  • AVIF is supported by modern browsers (Chrome, Firefox, Safari, Edge). Provide PNG/WebP fallbacks for older ones.
  • Typically 30–50% smaller at similar perceived quality, depending on the image.
  • You can upload images up to 16&nbsp;MB per file.
  • Files are processed automatically and not retained longer than necessary for conversion.
  • This page converts one file at a time. For bulk needs, repeat the process or use a batch tool.
  • Often yes for smaller file sizes with good quality; for strict lossless or special cases, PNG may still be preferable.

For maximum compatibility, serve AVIF with a PNG/WebP fallback using the <picture> element.