CleanorTools
AVIF

PNG to AVIF

Details

How to use PNG to AVIF

What the tool does, how to run it, and what to expect from the result.

How to convert a PNG to AVIF

To convert a PNG to AVIF, upload one PNG and set the AVIF quality, then export. The converter produces a single AVIF still image, aiming to keep the visual behavior of the original while shrinking the file where AVIF is supported.

When the runtime and destination support AVIF alpha, transparency is preserved in the export, so transparent PNGs can become transparent AVIF images. This makes PNG to AVIF a useful step for lightening web assets without losing their look.

All conversion happens locally in your browser, so the PNG stays on your device and nothing is sent to a server.

  • Upload one PNG
  • Set the AVIF quality
  • Export a smaller AVIF still

When PNG to AVIF is the right choice

AVIF can shrink still-image payloads significantly compared with PNG, which helps when you want lighter assets on the web and your audience's browsers support AVIF. The quality slider lets you trade a little detail for a smaller file when that tradeoff is acceptable.

This page focuses on one still-image conversion at a time rather than processing large photo libraries in bulk. Before deploying AVIF widely, confirm that the destinations where the image will appear support the format.

Tips

Getting a better result out of PNG to AVIF

Specific settings and thresholds, not general advice.

  • AVIF keeps a real alpha channel, so a transparent PNG stays transparent at a fraction of the size. That is the combination PNG cannot give you and JPG cannot give you at all.
  • For a photograph stored as PNG, this is the largest saving available anywhere: our benchmark put AVIF at 37% smaller than JPEG at matched quality, and PNG is lossless, so it is far heavier than either.
  • For flat graphics, logos and screenshots, compare before you commit. PNG is very efficient on large areas of identical colour, and a lossless PNG-8 can occasionally beat a lossy AVIF on the same asset.
  • AVIF encoding is slow on large images because it runs on your CPU. A 4000px photograph takes real seconds, and that is the cost of nothing being uploaded.
  • Keep the PNG as the master. AVIF is a delivery format, not an archive one, and re-encoding from the lossless original is always cleaner than re-encoding an AVIF.
Limits

What PNG to AVIF does not do

The honest boundary, so you do not lose time finding it yourself.

  • It does not work everywhere PNG does. Email clients and older software still reject AVIF.
  • Lossy AVIF is not reversible. Keep the PNG if you may need to edit again from a clean source.
  • It is slow on large images, because the encoding happens locally.
  • It converts a still image, not an animation.
Reference

Terms used on this page

Short, plain-language definitions for the formats and settings above.

Files & formatsAVIFAVIF (.avif) is a next-generation image format based on the AV1 video codec. It typically produces smaller files than JPEG or WebP at the same quality and supports transparency, HDR, and wide color — making it one of the most space-efficient formats available.GeneralEditing & toolsTransparent backgroundA transparent background means part of an image has no color at all, so whatever sits behind it shows through. It relies on an alpha channel and must be saved as a format that supports transparency — usually PNG or WebP — since JPEG cannot store it.General
At a glance

Who PNG to AVIF is for

A quick way to understand who this helps, what it solves, and where it connects next.

Best fit

People preparing transparent web graphics, icons, UI assets, and lightweight design exports.

Ideal for

Switching transparent or flat PNG assets into AVIF when the destination supports modern image formats.

FAQ

Common questions

Short answers for the questions people usually have before trying a utility like this.

Is the PNG to AVIF converter free?

Yes. This PNG to AVIF converter is free and runs entirely in your browser with no account required.

Will transparency survive the export?

Yes, when the runtime and destination support AVIF alpha as expected, transparency is preserved in the AVIF export.

Does this upload my PNG to a server?

No. The conversion happens locally in your browser, so the PNG never leaves your device.

Is this meant for large photo libraries?

No. This page is focused on one still-image conversion at a time rather than bulk processing.

Does it work on mobile?

Yes. The PNG to AVIF converter runs in any modern browser, including mobile, since all processing is done locally.

Does AVIF keep transparency from a PNG?

Yes, fully. AVIF carries a real alpha channel, so soft edges, feathering and drop shadows survive, at a fraction of the size the PNG was. That is the main reason to convert.

How much smaller will the AVIF be?

Substantially. Our format benchmark measured AVIF at 37% smaller than JPEG at matched quality, and PNG is lossless, so it stores everything and is far heavier than either. On a photograph the difference is dramatic.

Is AVIF always smaller than PNG?

Not always. PNG is very efficient on flat areas of identical colour, so for a simple logo or a screenshot with few colours, a well-quantized PNG-8 can occasionally beat a lossy AVIF. Compare before you commit.

Why is the conversion slow?

AVIF encoding is expensive and it runs on your CPU in the browser, not on a server. A large photograph takes real seconds, which is the price of the file never being uploaded.

Should I keep the original PNG?

Yes. PNG is lossless and makes the right master. AVIF is a delivery format: re-encoding from the PNG later is always cleaner than re-encoding an AVIF.

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