Convert PNG to AVIF Online Free
PNG is a lossless raster format with full transparency support, ideal for graphics and screenshots. AVIF is a cutting-edge image format based on the AV1 video codec with excellent compression. FileConverter turns your PNG into AVIF online in seconds - free, privacy-first, and with no software to install or account to create.
Convert PNG to AVIF
AVIF is already selected. Add your PNG file to start.
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Add a PNG file above to start the conversion.
PNG to AVIF is a strong web-performance move for graphics with transparency, trading broad software support for significantly smaller downloads on modern browsers.
What changes when you convert PNG to AVIF
AVIF uses lossy compression, which shrinks the file by discarding fine detail your eye is unlikely to notice. That is ideal for sharing and web use; keep the original PNG if you need a pristine master for editing or print.
About the PNG format
PNG uses lossless compression, so it never discards pixel data, and it supports an 8-bit alpha channel for smooth transparency. That makes it the standard choice for logos, icons, UI screenshots, and any graphic with crisp edges or text. In everyday use, PNG is chosen for logos, icons, and UI elements, screenshots with text and sharp edges and graphics that need transparent backgrounds. It opens in all browsers, Windows Photos, macOS Preview, and every graphics editor.
About the AVIF format
AVIF often beats WebP and JPG on file size at the same visual quality, and it supports HDR, wide colour, and transparency. Browser support is now broad, though some older desktop apps still cannot open it. In everyday use, AVIF is chosen for high-efficiency web images, HDR and wide-gamut photography online and replacing large JPGs to cut bandwidth. It opens in modern browsers and recent operating systems.
PNG vs AVIF
PNG is best known for lossless quality with no compression artefacts, while AVIF stands out for best-in-class compression efficiency. Choosing between them comes down to where the file needs to go next.
Common use cases
People convert PNG to AVIF for jobs such as high-efficiency web images, HDR and wide-gamut photography online and replacing large JPGs to cut bandwidth. It is especially common when a PNG file arrives from one system but needs to work in another that standardises on AVIF.
When to convert PNG to AVIF
Reach for PNG to AVIF when your destination expects AVIF — for example high-efficiency web images, HDR and wide-gamut photography online and replacing large JPGs to cut bandwidth. It is the right move when you receive a PNG file but the app, website, or person you are working with cannot use it. Bear in mind that limited support in older software and print tools, so keep your original PNG if you might need it again.
How to convert PNG to AVIF
- Upload your PNG file to the converter at the top of this page - AVIF is already selected as the output.
- Check the size limit shown on this page, then drag and drop or browse for your file.
- Confirm AVIF is still the target format, or pick a different one from the grid.
- Start the conversion and download your AVIF file the moment it is ready.
Quality tips
Always start from the largest, highest-quality PNG you have. If AVIF still needs to fit a size or pixel budget, run the result through our Compress or Resize tools rather than re-saving repeatedly, which degrades quality.
Platform compatibility
The PNG to AVIF converter runs on Windows, macOS, Linux, Android, and iOS - anywhere with a modern browser, with no plugins or permissions required. Once exported, AVIF opens in modern browsers and recent operating systems.
File size limits
Images up to 200MB
Troubleshooting
- AVIF is lossy, so each re-save loses a little more detail. Convert from your original PNG rather than from an earlier AVIF export.
- If the file exceeds the limit shown below, compress images, trim video, or split archives before retrying.
- If conversion fails, confirm the extension matches the real format — renaming a file alone does not change its contents.
- SVG and HEIC inputs sometimes need a moment longer on the first conversion.
- Transparency does not survive every target format — use PNG or WebP if an alpha channel matters.
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