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Date published: May 16, 2026
Last update: May 16, 2026
Author: Marek Hovorka
Category: Image Conversion Guides
Tags: avif image optimization, convert png to avif, png to avif
Learn when converting PNG to AVIF makes sense, how much size you can save, what happens to transparency and quality, and the fastest way to create web-ready AVIF files online.
PNG is a dependable format, but it becomes expensive fast. Transparent UI assets, screenshots, overlays, logos, and export-heavy design files can stay visually clean while turning into surprisingly large files. If your goal is to reduce image weight without giving up alpha transparency, converting PNG to AVIF is often one of the most effective upgrades available.
AVIF was built for modern delivery. It can compress images far more efficiently than PNG in many real-world cases, especially when the source file contains large flat areas, gradients, interface elements, or photographic detail that does not need to remain strictly lossless. The result is usually a much smaller file that still looks excellent on websites, apps, and modern devices.
This guide explains when to convert PNG to AVIF, when not to, what happens to transparency, how quality tradeoffs work, and how to get a clean result quickly with PixConverter.
Fast tool: Need a quick result right now? Use the PNG to AVIF converter to upload, convert, and download optimized files in a few clicks.
The main reason is simple: size.
PNG uses lossless compression, which is great for preserving exact pixel data, but not always great for efficient delivery. AVIF is much better at producing compact files, and it can still support transparency. That makes it attractive for web teams, app builders, marketers, bloggers, and anyone managing image-heavy pages.
Common reasons to convert include:
For many web assets, PNG is used because it is familiar, not because it is the best delivery format. AVIF is often the better endpoint format once editing is finished.
Converting from PNG to AVIF can preserve the visual purpose of the image while changing how the file is encoded.
This is the big win. Depending on the image, AVIF can reduce file size by a small amount, a large amount, or sometimes dramatically. Transparent graphics and screenshots often shrink well. Photographic PNG exports can shrink even more if they were unnecessarily stored as PNG to begin with.
AVIF supports transparency, so you are not forced to add a background color. That makes it useful for logos, cutouts, interface assets, badges, stickers, and layered web graphics.
Unlike PNG, AVIF is often used with lossy compression. That means the file becomes smaller by discarding some image information in ways that are usually hard to notice visually. In many practical cases, the tradeoff is worth it. But if you need exact pixel preservation for archive or editing purposes, keep the original PNG too.
AVIF works in modern browsers and current ecosystems, but some older software or workflows still prefer PNG, JPG, or WebP. If you are publishing online, AVIF is increasingly practical. If you are handing files to mixed teams or legacy tools, you may want a backup format.
| Feature | PNG | AVIF |
|---|---|---|
| Compression type | Lossless | Usually lossy, can be efficient at high visual quality |
| Transparency support | Yes | Yes |
| Typical file size | Larger | Much smaller in many cases |
| Editing friendliness | Excellent | Better as a delivery format than an editing master |
| Browser support | Universal | Strong in modern browsers |
| Best use case | Master assets, lossless graphics, edit workflows | Web delivery, optimization, bandwidth savings |
Not every PNG should be converted automatically. The best results come from choosing the right situations.
If you have hero overlays, decorative elements, transparent product cutouts, logos used on colored sections, or UI components, AVIF is often a strong alternative to PNG. You keep the transparency while reducing transfer size.
Many screenshots are exported as PNG because text and interface lines stay sharp. But large screenshots can become heavy. AVIF can often reduce size substantially while keeping the image visually clean enough for web reading.
Designers commonly export PNG from Figma, Sketch, Photoshop, or similar tools. That is fine for handoff, but the final web asset may be better as AVIF. A good workflow is to keep PNG as the working or backup version and publish AVIF as the delivery version.
This is a common waste case. If a photo, gradient-heavy banner, or social visual was saved as PNG, it may be much larger than necessary. AVIF often provides a major efficiency gain here.
PNG still has a clear place in image workflows.
If you need an exact lossless master for editing, compositing, or archival work, keep the PNG. Conversion to AVIF can create an excellent web copy, but it should not necessarily replace your original source file.
Some older content systems, image editors, plugins, or enterprise workflows may not handle AVIF smoothly. If recipients are likely to open, edit, or re-export the file in mixed environments, PNG may remain the safer exchange format.
Very small PNGs are not always worth converting. If the file is already lightweight and performs well, the practical benefit may be negligible. The right decision is the one that simplifies delivery without adding unnecessary complexity.
There is no universal percentage because the result depends on the image itself.
In practice, size savings often depend on:
Large interface screenshots, layered graphics, exported product visuals, and photo-like PNGs often show strong reductions. Extremely simple graphics may show smaller gains.
The fastest way to know is to test the actual file. Convert it once, compare the visual output, and check the new size. For web use, that direct comparison is usually more useful than relying on generic percentages.
Try it on a real file: Upload one of your heavier images to the PixConverter PNG to AVIF tool and compare the downloaded AVIF against your original PNG side by side.
Yes. This is one of the biggest reasons PNG users move to AVIF.
If your original PNG has a transparent background, AVIF can preserve that transparency. This is useful for:
That said, transparency does not guarantee identical edge rendering at every setting. If your image has delicate anti-aliased edges, soft shadows, or subtle alpha transitions, inspect the converted version carefully. In most cases it will still look great, but high-contrast edges deserve a quick visual review.
Good conversion is not only about making the file smaller. It is about keeping the image appropriate for its final use.
If the PNG already contains export artifacts, scaling problems, or unnecessary empty canvas area, conversion will not fix those issues. Crop, resize, and clean the source first when possible.
Keep the original PNG if you may need to edit later. Use AVIF as the optimized version for publishing, embedding, or sending through performance-sensitive channels.
Screenshots, UI exports, diagrams, and images with tiny text should always be reviewed after conversion. AVIF can handle them well, but the right balance depends on how crisp the content must remain at normal viewing size.
A 3000-pixel-wide image displayed at 900 pixels on a page is wasting bytes no matter what format you choose. If your use case allows it, reduce dimensions first, then convert.
Do not judge the entire workflow from a single logo or one screenshot. Try different asset types from your real library and compare the outcomes. This reveals where AVIF helps most in your stack.
If you want a quick browser-based workflow, online conversion is usually the simplest route.
This approach works well when you need a fast result without opening desktop software or exporting through multiple steps. It is especially practical for content teams, developers, ecommerce managers, and site owners handling assets on the fly.
Heavy screenshots and transparent visual elements can slow article pages down. AVIF helps reduce page weight while keeping the layout intact.
Landing pages often use transparent illustrations, dashboard screenshots, and layered interface sections. Those assets are prime candidates for AVIF delivery.
Product cutouts with transparent backgrounds can often be served more efficiently in AVIF, especially on mobile-heavy storefronts where every kilobyte matters.
Visual quality matters here, but so does smooth browsing. AVIF can make galleries and project pages feel lighter without visibly harming presentation.
Some PNGs are fine as they are. Focus first on heavier assets and files that affect real page weight.
AVIF is usually better for final delivery than for long-term editing. Keep the PNG if you may need to revise it later.
If your audience includes older systems, consider whether a fallback format is needed in your publishing workflow.
If the asset is a standard photo without transparency, you may also want to compare AVIF against JPG or WebP workflows. Similarly, if you need universal compatibility, PNG or JPG may still be the practical choice.
Both AVIF and WebP are useful upgrade paths from PNG, but they are not identical.
AVIF usually pushes harder on compression efficiency and can produce smaller files at similar visual quality. WebP remains very practical and broadly supported, and some teams prefer it for workflow simplicity. If you want to compare options, PixConverter also offers a direct PNG to WebP converter.
If you later need to move assets back into a more editable or broadly accepted format, related tools can also help, including WebP to PNG and PNG to JPG.
For web delivery, often yes. AVIF is usually better when you want smaller files and can accept a modern compressed output. PNG is still better as a lossless editing or archive format.
It can, because AVIF is often used with lossy compression. However, the visual difference may be minimal or hard to notice at normal viewing sizes, especially compared with the file size savings.
Yes. AVIF supports transparency, which is why it is a strong replacement for many web-delivered PNGs.
Yes, often. It is especially useful for large screenshots used in articles, product pages, and documentation. Still, review small text and fine UI edges after conversion.
Usually no. Keep the PNG as the master or backup file, and use AVIF as the optimized output for delivery.
It works well in modern browsers and many current platforms, but not every older app or workflow handles it equally well. Compatibility needs should guide your publishing setup.
If compatibility is the top priority, consider converting to JPG or keeping PNG. For that, you can use PNG to JPG or JPG to PNG depending on the direction you need.
Converting PNG to AVIF is one of the most practical ways to modernize image delivery when file size is getting in the way. You can often keep transparency, preserve strong visual quality, and make pages lighter at the same time. The biggest wins usually come from screenshots, transparent web graphics, product cutouts, and design exports that were never meant to stay as heavy PNGs in production.
The key is to treat AVIF as an optimized delivery format, not as a replacement for every original asset. Keep your source file when needed, test a few representative images, and use the lighter output where performance matters most.
Use PixConverter to turn bulky PNG files into lighter, web-ready formats in a few clicks.
If your goal is faster pages, smaller uploads, and cleaner everyday image handling, start with the format that fits the final job best.
