PNG to AVIF Converter

1. Upload one or more PNG files (up to 50 MB total).
2. Click 'Convert to AVIF' — finishes in under 4 seconds per image.
3. Download AVIF files individually, or grab all as a ZIP.

AVIF is 50% smaller than JPG and typically 5-10x smaller than PNG for photographs — while preserving transparency. Converting PNG to AVIF keeps alpha channels intact while dramatically reducing file size.

PNG is lossless and supports transparency — great for logos and design assets, but wasteful for photos and screenshots. AVIF is the newest format, based on AV1 codec, and typically produces files 5-10x smaller than PNG for photographs while still preserving alpha channels. If you're delivering images over the web, converting PNG to AVIF dramatically reduces bandwidth costs and improves page load times without sacrificing quality or transparency.

The converter decodes the PNG image and re-encodes it as AVIF using libavif at 85% quality. AV1-based compression is much more efficient than PNG's lossless DEFLATE, producing files 5-10x smaller for photos. PNG's 8-bit alpha channel is preserved as AVIF's alpha channel, so transparency survives the conversion.

• Converting PNG photos to a smaller modern format for web.
• Reducing bandwidth costs for image-heavy websites.
• Preserving PNG transparency while gaining 90% compression.
• Optimizing hero images and design assets for Core Web Vitals.
• Converting large PNG libraries to a modern efficient format.
• Preparing images for CDN delivery with automatic AVIF optimization.
• Reclaiming storage on a large PNG archive.

AVIF output uses 85% quality — visually indistinguishable from the source PNG at normal viewing distances. For photographs, the compression is dramatic (5-10x smaller). For screenshots and text-heavy images, compression is more modest and slight softening may occur. Transparency is fully preserved, making AVIF excellent for logos and UI assets.

• Very old browsers (pre-2020) cannot display AVIF.
• Some CMS platforms may not accept AVIF uploads without plugins.
• AVIF encoding is slower than PNG (2-4 sec per image).
• Screenshots with fine text may show slight softening.
• AVIF is not supported by Photoshop versions before 23.2.

• AVIF opens natively in every browser released since 2020.
• Native support in Windows 11, macOS Big Sur+, iOS 16+, Android 12+.
• Supported by modern CMS (WordPress via plugin, Ghost, Next.js).
• Native import in Photoshop 23.2+, GIMP 2.10.22+, Affinity Photo 2+.
• Supported by modern CDNs (Cloudflare, CloudFront, Akamai).

• AVIF is supported by every browser since 2024 — safe for modern sites.
• For the oldest browsers, serve AVIF with PNG fallback.
• AVIF preserves PNG transparency — good for logos and UI.
• For screenshots with text, consider WebP or keep PNG.
• Batch-convert up to 50 MB of PNG files at once.

AVIF conversion is slow

AV1 encoding is CPU-intensive. Typical conversion is 2-4 seconds per image. This is the trade-off for 5-10x smaller files.

AVIF won't open in old software

AVIF requires software from 2020+. For legacy support, keep PNG or convert to JPG.

Screenshot text looks slightly fuzzy

AVIF's lossy compression softens sharp edges. For screenshots with fine text, use WebP (lossless mode) or keep PNG.

• Alliance for Open Media — AVIF
• W3C — PNG Specification