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Date published: March 18, 2026
Last update: March 18, 2026
Author: Marek Hovorka
Category: Image Conversion Guides
Tags: AVIF image format, convert png to avif, Image optimization, Online image converter, png to avif
Learn when converting PNG to AVIF makes sense, how transparency and quality behave, what file size savings to expect, and the fastest way to convert PNG to AVIF online.
PNG is one of the most useful image formats on the web. It handles transparency well, keeps sharp edges clean, and works great for interface graphics, logos, icons, diagrams, and screenshots. The downside is file size. PNG files can become very large, especially when images contain transparency, flat colors, text, or exported design assets.
That is where AVIF becomes interesting. If you want smaller images without giving up modern visual quality, converting PNG to AVIF can be a smart move. For many web workflows, AVIF can reduce file size dramatically while still preserving transparency and delivering a polished result.
In this guide, you will learn when PNG to AVIF conversion makes sense, when it does not, what changes during conversion, how transparency behaves, and how to get the best result without wasting time. If you just want to convert right now, use PixConverter to quickly turn PNG files into AVIF online.
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The main reason is simple: PNG is often bigger than it needs to be.
PNG uses lossless compression. That is great for preserving exact pixel data, but it is not always the most efficient choice for delivery. AVIF was designed as a newer image format that can achieve much better compression than older web formats while still looking excellent.
Common reasons to convert PNG to AVIF include:
If your PNG files are adding weight to web pages, AVIF can be a strong alternative.
PNG and AVIF are not the same kind of format, so conversion can change more than just the extension.
| Feature | PNG | AVIF |
|---|---|---|
| Compression type | Lossless | Usually lossy, can also support lossless |
| File size | Often large | Usually much smaller |
| Transparency | Yes | Yes |
| Sharp text and edges | Excellent | Usually very good, depends on settings |
| Browser and app support | Near universal | Good modern support, but not universal everywhere |
| Best for | Editing, source assets, transparency-heavy graphics | Web delivery, performance-focused publishing |
The most important difference is that AVIF is often used with lossy compression. That means it can make files much smaller, but exact pixel information may change slightly. In many cases the visual difference is hard to notice, especially on normal screens.
No. AVIF is better for many delivery scenarios, but not every scenario.
A useful way to think about it is this: PNG is often better as a working format, while AVIF is often better as a delivery format.
If you use transparent PNGs for product cutouts, feature graphics, badges, overlays, or decorative elements, AVIF can often deliver a much smaller version while preserving the transparent background.
Buttons, interface illustrations, onboarding graphics, and lightweight visual assets often compress very well in AVIF. This can help reduce page or app payload size.
Many blog illustrations are exported as PNG because they contain text, diagrams, and clean edges. AVIF may cut file size significantly while keeping the image visually sharp enough for online reading.
If you use transparent product assets, promotional graphics, or branded visual components, AVIF can improve load speed without forcing you to remove transparency.
When a design tool exports a PNG by default, that does not always mean PNG is the best final publishing format. Converting that PNG to AVIF can be a smart extra optimization step.
There are cases where conversion is not ideal.
If the image is intended for print production, PNG to AVIF is usually not the workflow you want. AVIF is mainly a web and digital delivery format.
If you need to preserve every pixel exactly as exported, keep the original PNG. Even if you create an AVIF version for use online, store the PNG as your source.
Some older software, CMS workflows, plugins, or editing apps still handle PNG more predictably than AVIF. If compatibility matters more than size, keep the PNG.
Not every PNG produces dramatic savings. A very small icon or already-optimized asset may not shrink enough to matter.
One of the best reasons to convert PNG to AVIF is that AVIF supports transparency. That makes it a realistic modern replacement for many transparent PNG use cases.
Still, there are practical details worth knowing:
This matters most for logos, icons, UI graphics, cutout products, and images placed over colored backgrounds. If clean edges matter, preview the result before publishing broadly.
If transparency is your top priority and you are comparing modern formats, you may also want to create alternate versions using PNG to WebP to test which output fits your site and workflow best.
There is no single percentage that applies to every image, but AVIF often beats PNG by a large margin in web delivery scenarios.
You may see:
The exact result depends on:
The practical answer is to test your actual assets. Convert a few representative PNG files and compare visual quality against file size. That tells you more than generic averages.
The fastest approach is using a browser-based converter. With PixConverter, the workflow is simple:
This is usually the easiest option if you want to avoid installing desktop software or dealing with command-line tools.
Getting a good AVIF output is not just about shrinking the file as much as possible. The goal is efficient compression without obvious visual damage.
If the original PNG already has rough edges, noise, or export issues, AVIF will not magically fix it. Begin with the cleanest source available.
AVIF can preserve sharp graphics well, but very aggressive compression may soften small text, thin lines, or UI borders. If the image contains labels or interface details, inspect those areas closely.
A transparent image can look fine on white but show halos or artifacts on dark backgrounds. Test the AVIF file where it will actually appear.
Keep the original PNG as your source file. Use AVIF as a delivery copy, not as your only archive.
If you convert many PNG files at once, spot-check several outputs. A single preset may not suit every image equally well.
Image format choices can affect performance, and performance affects user experience. Faster image delivery can reduce page weight, improve perceived speed, and help support stronger engagement.
Converting suitable PNG images to AVIF can help with:
Format choice alone will not guarantee rankings, but smaller and faster images are part of a healthier technical SEO setup.
If you are optimizing a full image library, it can also help to compare other converter workflows, including PNG to JPG for non-transparent images and JPG to PNG when you need cleaner editing or transparency-ready assets.
AVIF can work well for website delivery, especially if the logo uses transparency. But keep an original PNG or vector source for brand management.
Screenshots often compress very efficiently in AVIF. This is one of the strongest use cases, especially for blog tutorials, app documentation, and support content.
Illustrations with flat colors and clean edges can do very well in AVIF, though you should inspect line sharpness carefully.
If the image uses transparency around a product, AVIF can be an excellent modern delivery format.
Keep PNG as the source. Convert to AVIF only for final publishing or preview use.
Yes, AVIF supports transparency, so transparent PNG files can usually be converted without flattening the background.
Possibly, depending on how the AVIF file is encoded. Many conversions use lossy compression to save space. In practice, the quality can still look excellent for web use.
Yes, but if the AVIF version was compressed lossily, converting it back to PNG will not restore the original lost detail. Keep your original PNG if quality matters.
Support is strong in modern web environments, but not universal across every app, platform, or older tool. Check your destination before replacing all PNGs blindly.
For many teams and creators, the smartest setup is not choosing one format forever. It is using both formats for different roles.
This approach gives you flexibility. You preserve a dependable original while still taking advantage of modern compression when publishing online.
Often yes, especially when reducing file size is a priority. AVIF can deliver much smaller files while still supporting transparency. PNG still remains useful as a source format and for maximum compatibility.
Yes. You can use an online tool like PixConverter to upload a PNG and download an AVIF version directly in your browser.
Yes, particularly for web delivery. Just keep the original source file as well, since logos may need exact master versions for print, brand kits, or future editing.
Not every file, but many will shrink substantially. Results vary based on the image content, size, and compression settings.
For many web use cases, yes. If you need smaller transparent images for modern browsers, AVIF is worth testing. If you need broad compatibility or source preservation, keep PNG too.
You can always convert other formats as needed. For example, PixConverter also supports WebP to PNG and HEIC to JPG for common compatibility workflows.
Converting PNG to AVIF is one of the most practical ways to modernize image delivery without giving up transparency. If your PNG files feel too heavy for web use, AVIF can often give you a better balance of size and visual quality.
The key is to use it selectively. Keep PNG as your source when you need editability and exact preservation. Use AVIF when your goal is faster delivery, smaller files, and more efficient web performance.
Convert your images in seconds and choose the format that fits your workflow.
If you want lighter images without a complicated workflow, PixConverter is a fast place to start.
