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.

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 files to AVIF in your browser. AVIF files are typically smaller than PNG. Note: converting from lossless PNG to lossy AVIF discards some detail in exchange for smaller files. Free, no upload, no signup.

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%

01 — 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.

02 — Comparison

PNG vs AVIF

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.

03 — How to

Three steps

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.

04 — Pillars

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.

05 — FAQ

Frequently asked

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.

06 — More

Why convert PNG to AVIF

PNG vs AVIF

Three steps

Drop your PNG files

Convert in your browser

Download the result

Why convert.now

Frequently asked

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