What's the difference between PNG and AVIF?

PNG is a lossless raster format that supports transparency. AVIF is the newest mainstream image format, built on top of the AV1 video codec.

Will I lose quality converting from PNG to AVIF?

Yes — AVIF discards some image detail in exchange for much smaller files. At quality 80 or above the difference is usually invisible to the eye. For maximum quality, use quality 90+. For maximum compression, drop to quality 70 (still acceptable for most photos).

What quality should I pick?

For AVIF, quality 75-85 is the sweet spot — small files with no visible difference from the original. Lower than 60 starts to show artifacts. Higher than 90 mostly just makes the file bigger.

Why convert away from PNG?

PNG is a lossless raster format that supports transparency. Where it falls down: photographs and large naturalistic images (file size is huge); anywhere bandwidth or page-weight matters (use WebP or AVIF instead). AVIF addresses that for most workflows.

When is AVIF the right format?

AVIF is a good choice for: hero images and other content where every byte matters; build-time image pipelines that can absorb the encoding cost; photos with smooth gradients (the AV1 codec excels here). It is a poor choice when on-the-fly conversion where the user is waiting (slow encode).

Anything surprising about PNG or AVIF?

PNG-8 uses a palette of up to 256 colors and is much smaller than PNG-24, but loses gradient fidelity. And on the AVIF side: AVIF encoding is single-threaded by default — large images can take 5–10 seconds in browser.

Does this work on mobile?

Yes. The drop zone falls back to your phone's file picker, and conversions run on-device just like desktop. Large files may be slower on mobile due to CPU and memory constraints, but the workflow is identical.

What's the maximum file size?

No hard limit — the browser handles it. Files under 50MB convert in a few seconds. Larger files work but may take longer as the browser allocates memory. If you hit issues, batch in smaller groups.

Convert PNG to AVIF

Convert PNG to AVIF, typically the smallest of the modern web formats. PNG's transparency is preserved. Free, in your browser.

Drop images to convert

PNG, JPG, WebP, AVIF, JPEG XL, TIFF, BMP, GIF, SVG, HDR, ICO — any combination

Files stay on your device. Open DevTools' Network tab to verify.

Output format

AVIF

Quality82%

Overview

Why convert PNG to AVIF

AVIF files are typically much smaller than PNG at equivalent quality — usually the main reason to make this conversion. Smaller files mean faster page loads, smaller email attachments, and less storage. PNG's transparency is preserved.

Comparison

PNG vs AVIF: what actually differs

PNG compared with AVIF across encoding, fidelity, file size and support.
Attribute	PNG	AVIF
Compression	Lossless	Lossy
Transparency	Yes	Yes
Animation	No	Yes
Typical file size	Very large	Small
Browser support	Universally supported in every browser since the late 1990s.	Supported in Chrome, Firefox, Safari 16+, and Edge. Pre-2022 devices may not decode it.

How to

How to convert PNG to AVIF

01
Drop your PNG files
Drag one or more PNG files onto the dropzone above, or click to browse. Files stay on your device — nothing uploads.
02
Convert in your browser
convert.now decodes each PNG and re-encodes it as AVIF via WebAssembly. The conversion runs in a Web Worker so the page stays responsive.
03
Download the result
Download a single AVIF file or, for batch conversions, a zip of all converted files. Filenames preserve the originals.

Why here

Why convert.now

Private
Files stay in your browser. No upload step. Nothing for anyone to see.
Fast
No queue, no upload wait. Conversion starts the moment you drop a file.
Free
No ads. No file-count limit. No sign-up wall. Just the converter.

FAQ

PNG to AVIF: common questions

No. The conversion from PNG to AVIF runs entirely in your browser using WebAssembly. Files never leave your device. Open DevTools' Network tab if you'd like to verify — there are no network requests with file contents.

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Last updated 27 August 2026

Why convert PNG to AVIF

PNG vs AVIF: what actually differs

How to convert PNG to AVIF

Drop your PNG files

Convert in your browser

Download the result

Why convert.now

PNG to AVIF: common questions

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