PNG to AVIF
PNG keeps your images crisp and your transparency intact — but the files are big. AVIF gives you the same sharp result and full transparency at a fraction of the size, using modern AV1 compression. Converting PNG to AVIF is the easy win for lighter web graphics and screenshots. FluidConvert does it in your browser, so the image never leaves your device.
Drop your file here, or browse
Accepts: image/png, .png · Max 1GB · always free
Your files are encrypted with TLS and automatically deleted after conversion.
Simply upload your .PNG file and we'll convert it to .AVIF format — fast, free, and secure.
Fast & Free
Convert files up to 1GB completely free. No account, no limits.
Secure
Files are encrypted and automatically deleted after conversion.
High Quality
Industry-leading conversion with no quality loss.
How to Convert PNG to AVIF
Upload Your File
Click the upload area above or drag and drop your .PNG file. We support files up to 1GB, completely free.
Choose Output Format
Select .AVIF as your target format. Adjust any conversion settings if needed.
Download Your File
Click Convert Now and wait a few seconds. Once complete, download your converted file instantly.
About PNG to AVIF
Last updated: August 2026
What is PNG?
PNG is a lossless image format prized for pixel-perfect graphics, screenshots, logos, and anything with transparency. Because it's lossless, it never degrades — but that also makes PNG files large, especially for detailed or photographic content, which is a problem for web performance and storage.
Why convert to AVIF?
AVIF supports full alpha transparency like PNG, but compresses far more efficiently using the AV1 codec. A PNG screenshot or graphic converted to AVIF is often a fraction of the original size while looking identical, transparency and all. For websites that means faster loads; for storage it means much smaller files. Every current major browser displays AVIF, including its transparency.
What to expect from the conversion
AVIF can encode losslessly or with high-quality lossy compression; FluidConvert targets visually lossless output, so PNG-to-AVIF keeps your image looking the same while cutting the size dramatically. Transparency is preserved. For flat-color graphics and logos the savings are large; for already-tiny PNGs the difference is smaller.
How FluidConvert handles it
The conversion runs entirely in your browser — your PNG is re-encoded to AVIF on your own device and never uploaded. Private by design, free, and no account required.
Common reasons to convert PNG to AVIF
- Shrinking transparent PNG graphics and logos for faster-loading web pages
- Compressing screenshots that need to stay sharp but weigh less
- Replacing heavy PNG UI assets with lightweight AVIF equivalents
- Reducing storage for a library of transparent images
- Serving modern, transparent images to browsers without the PNG file bloat
Frequently Asked Questions
Does AVIF keep PNG transparency?
Yes. AVIF supports a full alpha channel, so transparent areas in your PNG stay transparent in the AVIF — at a much smaller file size.
Will PNG to AVIF lose quality?
At the default visually-lossless setting, no perceptible loss — the AVIF looks like the PNG but weighs far less. AVIF also supports fully lossless mode if you need bit-exact output.
Is PNG to AVIF done in my browser?
Yes, entirely on your device. Nothing is uploaded, which makes it safe for screenshots or graphics you'd rather not send to a server.
Why is AVIF so much smaller than PNG?
PNG is lossless and stores a lot of data; AVIF's AV1 codec compresses the same image far more efficiently while keeping it visually identical, including transparency.
Can every browser open AVIF?
All current major browsers display AVIF, including transparency. For older software, keep a PNG copy for maximum compatibility.