100% Free No Upload Bulk Conversion

Bulk PNG to AVIF Converter — Free, No Upload

Convert multiple PNG files to AVIF instantly — all in your browser. No file limits, no watermarks, and completely private.

PNG AVIF · ZIP

Bulk PNG → AVIF Converter

Select files, convert, download ZIP — all locally

Drop PNG files here or click to browse

Supports batch selection — convert hundreds of files

PNG → AVIF ZIP

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✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert PNG to AVIF?

Because PNG files use lossless compression and 48-bit, they are not ideal for Next-gen web images — superior compression. Converting them to AVIF (lossy/lossless, 12-bit HDR) solves this. Modern web formats like AVIF offer superior compression compared to PNG. Switching to AVIF can improve your Core Web Vitals and reduce bandwidth costs by 30–50%.

Technical comparison: PNG vs AVIF

Property	PNG	AVIF
Full name	Portable Network Graphics	AV1 Image File Format
Compression	Lossless	Lossy / Lossless
Color depth	48-bit	12-bit HDR
Transparency	Yes	Yes
Web support	Yes	Yes
Developed by	PNG Development Group (1996)	Alliance for Open Media (2019)
Best for	Web graphics with transparency	Next‑gen web images — superior compression

How to use — 3 simple steps

Select your PNG files

Drag & drop or click to choose multiple PNG images. No file size restrictions.

Start the conversion

Click "Convert to :to" — your files are processed locally using Canvas API. No upload, no waiting.

Download ZIP archive

All converted AVIF files are bundled into a single ZIP. One click, everything saved.

Popular use cases for PNG → AVIF

Make your PNG images viewable on any device – convert to AVIF

Stop dealing with 'unsupported format' errors – use AVIF instead of PNG

Batch rename and convert your PNG collection to AVIF for a unified library

Improve your website's Google PageSpeed score by serving AVIF images

💡 Pro tips

Use WebP/AVIF for web — they load 30-50% faster than JPEG/PNG
Use the ZIP download to get all converted files in a single click
All processing is private — files are never uploaded to any server

Frequently Asked Questions

AVIF uses lossy/lossless compression. If lossy, at 85-92% quality the loss is imperceptible. If lossless, every pixel is preserved.

No artificial limit. Browser memory is the only constraint. Files up to 500 MB work well.

Yes. The bulk converter processes all selected files sequentially. Hundreds of files possible.

Yes. Everything happens locally in your browser via WebAssembly. Files never uploaded.

Bulk PNG to AVIF Converter — Free, No Upload

Why convert PNG to AVIF?

Technical comparison: PNG vs AVIF

How to use — 3 simple steps

Popular use cases for PNG → AVIF

💡 Pro tips

Frequently Asked Questions

Does converting from PNG to AVIF lose image quality?

What's the maximum file size I can convert from PNG to AVIF?

Can I convert multiple PNG files to AVIF at once?

Is my data safe when using this online converter?

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