PNG to AVIF Converter — Free, Private, No Upload
Convert PNGs into small AVIF images that keep transparency. Free, no sign-up, and your files never leave your device.
Free, with no sign-up and no watermark. The file is processed in your browser and never uploaded.
PNG is lossless and supports transparency, which makes it ideal for screenshots, logos and graphics — but photos stay large. AVIF is the newest web image format; it often beats WebP on size, but support in older software is limited.
AVIF supports transparency and usually makes PNGs dramatically smaller.
Step by step
- Add your images: Drop your PNG files on Upload PNG images, or click to browse. Other image types (PNG, JPG, HEIC, WebP, TIFF and more) are accepted too.
- Choose options: Set Quality — higher keeps fine edges sharper.
- Convert: Click Convert to AVIF. Each image is decoded and re-saved in your browser.
- Download: One image downloads straight away; several download together as a ZIP. You can also download any single result from the list underneath.
Handy for
Transparent web images
Much lighter logos and cut-outs.
Product images
Faster shop pages.
Illustrations
Smaller artwork for the web.
Format testing
See how much AVIF saves.
Good to know
Use Resize (optional) → Set width to shrink large photos at the same time — handy for email and upload limits.
Questions
Are my images uploaded anywhere?
No. The conversion runs entirely in your browser, so your images never leave your device, and it keeps working offline once the page has loaded.
Can I convert several images at once?
Yes. Add as many images as you like. A single result downloads straight away; several results download together as a ZIP, and each one also has its own Download link in the results list.
Further reading
- JPG vs PNG vs WebP vs AVIF: Which Image Format Should I Use? — Use JPG for photos and uploads, PNG for screenshots, logos and transparency, and WebP or AVIF for websites. See how they compare and how to convert.
More Image Converter tools
- JFIF to JPG — Rename-and-convert JFIF images into standard .jpg files that upload everywhere.
- PSD to JPG — Export a Photoshop PSD's flattened image as a JPG — no Photoshop needed.
- PSD to PNG — Export a Photoshop PSD's flattened image as a PNG with transparency.
- PNG to SVG — Trace a PNG logo or drawing into a scalable SVG vector.
- JPG to SVG — Trace a JPG image into a scalable SVG vector with adjustable detail.
- HEIC to PDF — Combine iPhone HEIC photos (or any images) into one PDF, in the order you choose.