Finally a truly free unlimited converter! Convert unlimited images online – 100% free, no sign-up required
Menu
CZ | EN
Date published: April 17, 2026
Last update: April 17, 2026
Author: Marek Hovorka
Category: Image Conversion Guides
Tags: AVIF image format, convert png to avif, Image optimization, png to avif, transparent images
Learn when converting PNG to AVIF is the right move, what quality and transparency changes to expect, and how to create much smaller image files for web, app, and UI use.
PNG is one of the most dependable image formats on the web. It preserves detail, supports transparency, and works almost everywhere. The problem is size. PNG files can become heavy very quickly, especially for interface graphics, screenshots, illustrations, exported design assets, and transparent web images.
That is where AVIF becomes interesting. If you need to convert PNG to AVIF, you are usually trying to keep a clean-looking image while cutting file weight dramatically. In many cases, that is exactly what AVIF does well.
This guide explains when PNG to AVIF conversion is worth it, when it is not, what happens to quality and transparency, and how to get better results without guesswork. If your goal is faster pages, lighter assets, or more efficient image delivery, this is the practical path to follow.
Ready to try it now?
Use PixConverter to convert PNG to AVIF online in a few clicks. Upload your PNG, convert it, and download a much smaller file for websites, apps, or modern image workflows.
Most PNG to AVIF conversions happen for one reason: reducing file size without making an image look obviously worse.
PNG uses lossless compression. That is excellent for preserving exact pixel data, but it is not always efficient. A simple transparent icon may stay reasonably small, but screenshots, layered exports, gradients, UI assets, and detailed graphics can become much larger than they need to be for web delivery.
AVIF is designed differently. It aims for much better compression efficiency, which often means noticeably smaller files at similar visual quality. That can help with:
If your PNG exists mainly for viewing rather than intensive editing, AVIF is often a strong candidate.
AVIF is especially attractive because it combines modern compression with support for important image features many people associate only with PNG or WebP.
This is the main advantage. AVIF can often shrink image size substantially compared to PNG. The exact savings depend on the image, but the difference can be large enough to matter immediately for page speed and storage.
Many users assume that moving away from PNG means losing transparency. That is not true here. AVIF supports transparency, so logos, cutouts, overlays, interface elements, and graphics with transparent backgrounds can often be converted successfully.
AVIF can preserve a very clean look at lower file sizes, especially for many web-facing assets. It tends to perform well on images that would otherwise make PNG bulky.
For websites targeting newer browsers and performance-conscious delivery, AVIF is often used as a next-generation format. It can be an efficient choice in responsive image pipelines and optimization workflows.
| Feature | PNG | AVIF |
|---|---|---|
| Compression type | Lossless | Usually lossy, can also support lossless modes |
| File size | Often large | Usually much smaller |
| Transparency | Yes | Yes |
| Editing friendliness | Very good | Less ideal as a working format |
| Browser and app compatibility | Excellent | Good in modern environments, less universal than PNG |
| Best use cases | Master assets, editing, exact preservation | Web delivery, smaller transparent images, performance optimization |
Not every PNG should become an AVIF. The best results come when the image is being used for delivery, not as a master source file.
If you are publishing screenshots, illustrations, banners, UI graphics, product visuals, or transparent site elements, AVIF can reduce page weight considerably. That makes it useful for performance-focused websites, landing pages, blogs, ecommerce pages, and web apps.
Transparent PNG assets are common in design systems and front-end builds. If those files are making your pages heavy, converting them to AVIF can preserve transparency while cutting bytes.
Some screenshots stay in PNG because that is the default export. But if the screenshot is only being displayed online, AVIF can be a smarter delivery format.
If you manage many PNG files on a website or in a product catalog, converting them to AVIF can create meaningful savings at scale.
AVIF is powerful, but PNG still matters. In several workflows, PNG remains the better source format.
If the file will be edited repeatedly in design tools, retouched, composited, or passed between teams, PNG is usually more practical as the working file.
PNG opens nearly everywhere. If you are sending files to unknown platforms, legacy systems, or apps with limited AVIF support, keeping a PNG version is safer.
If your goal is storing a pixel-exact original, PNG is often the better archival format. Delivery formats and source formats do not always need to be the same.
Modern browsers handle AVIF well, but software support can still vary. If your file needs to move through many non-browser tools, PNG may cause fewer problems.
Sometimes yes, but not always in a way users notice.
PNG is typically lossless, while many AVIF exports are lossy to achieve stronger compression. That means some image information may be discarded. The important question is whether the visible result still looks excellent for its intended use.
For many website graphics, the answer is yes. A well-encoded AVIF can look extremely close to the original while being far smaller. But results depend on the image itself.
In those cases, always compare the result before replacing the original.
Transparency is one of the biggest reasons people use PNG, so it is fair to ask what changes after conversion.
The good news is that AVIF supports transparency. In many common use cases, transparent backgrounds convert well. Logos, product cutouts, stickers, icons, and floating UI elements can remain transparent after conversion.
Still, you should inspect edges carefully. Fine anti-aliased edges, subtle fades, glow effects, and semi-transparent shadows may look slightly different depending on encoding choices. For most practical web use, this is not a problem. But for extremely sensitive design assets, visual checking is worth the extra minute.
If you want consistently strong results, use a simple decision process rather than converting everything blindly.
Ask whether the PNG is a source file or a delivery file.
If the image uses transparency and you need to preserve it, AVIF is still a valid option. Just confirm the converted edges look clean.
Open the original and the converted file side by side. Check:
If the visual difference is negligible but the file is dramatically smaller, the conversion probably makes sense.
For smart workflows, the PNG remains your editable backup while AVIF becomes the optimized output.
Fast workflow tip:
Keep your original PNG as the master asset, then generate AVIF as the web-ready version. With PixConverter, you can convert PNG to AVIF online without adding extra software to your workflow.
If your site uses many PNG screenshots, diagrams, or article visuals, AVIF can significantly reduce page weight while maintaining a clean appearance.
Transparent product cutouts and promotional graphics often start as PNGs. Converting them to AVIF may help pages load faster without abandoning transparency.
Dashboards, onboarding illustrations, help-center screenshots, badges, and UI assets are common PNG exports. AVIF is often a more efficient delivery format.
Marketing pages depend on speed. If your page uses transparent assets or graphical sections exported as PNG, AVIF can help lower load costs.
Support articles and tutorials often include many screenshots. Converting appropriate PNG screenshots to AVIF can reduce total page size meaningfully.
Do not overwrite the original PNG if it might need editing later. Treat AVIF as an output format, not necessarily your only stored version.
Some PNGs are already small enough, and some are better left untouched for compatibility or precision reasons.
Tiny text, fine lines, and crisp interface elements should be checked at normal viewing size after conversion.
If your audience uses systems with uneven AVIF support, consider whether you also need a PNG, WebP, or JPG alternative depending on the use case.
Sometimes AVIF is right. Sometimes another format fits better.
| Conversion | Best for | Main advantage | Main caution |
|---|---|---|---|
| PNG to AVIF | Modern web delivery with transparency | Very strong compression | Less universal compatibility than PNG |
| PNG to WebP | Web optimization with broad modern support | Smaller than PNG in many cases | May not compress as aggressively as AVIF |
| PNG to JPG | Photos or simple sharing where transparency is not needed | Excellent compatibility and small files | No transparency support |
If AVIF does not fit your target platform, another route may be better. For example, you can also use PNG to WebP for modern web delivery or PNG to JPG for highly compatible everyday sharing.
The fastest way is usually an online converter. You do not need a complex design app just to create a lighter delivery file.
PixConverter keeps this workflow simple. If your goal is speed, file size reduction, and easy format switching, it is built for exactly that job.
Convert now with PixConverter
Start your PNG to AVIF conversion here and create smaller, modern image files for websites, apps, and lightweight delivery.
It depends on the goal. For editing, exact preservation, and maximum compatibility, PNG is often better. For smaller file sizes and modern web delivery, AVIF is often the stronger choice.
Yes. AVIF supports transparency, which makes it useful for many PNG-style assets such as logos, overlays, and cutout graphics.
Very often yes, but not every single file will improve dramatically. The biggest gains usually appear with larger or more complex PNGs used for web display.
It can, especially if the AVIF export is lossy. In practice, many conversions still look excellent while becoming much smaller. Always compare the result if detail is critical.
Usually no. Keep the PNG if you may need to edit, re-export, or share the file in a universally compatible format later.
Yes. AVIF is widely used for performance-focused websites because it can deliver high visual quality at much smaller sizes than older formats.
If AVIF is not ideal for your use case, consider alternatives such as PNG to WebP or PNG to JPG, depending on whether you need transparency.
Converting PNG to AVIF is not about replacing PNG everywhere. It is about using a more efficient format when the image is meant for delivery rather than editing.
If you have transparent graphics, screenshots, UI exports, or web assets that are slowing down your pages or bloating storage, AVIF is often one of the smartest formats to test. It can preserve the look users care about while cutting file size enough to improve speed and efficiency.
The best workflow is simple: keep PNG as the source when necessary, generate AVIF for modern delivery, and review results where fine detail matters.
Need to switch formats quickly? PixConverter makes it easy to convert images online for web, design, sharing, and everyday file compatibility.
Convert PNG to AVIF
Convert PNG to JPG
Convert JPG to PNG
Convert WebP to PNG
Convert PNG to WebP
Convert HEIC to JPG
Choose the format that fits the job, then convert in seconds with PixConverter.
