How to Convert PNG to AVIF Online
Follow these three simple steps to convert PNG images to AVIF. No software installation required.
Add PNG Images
Select PNG photos, screenshots, or graphics from your device. You can also drag and drop multiple images or select an entire folder.
Convert PNG to AVIF
AVIF is selected by default. Adjust the quality if needed, then start the conversion.
Preview and Download
Review the converted AVIF images and their file sizes. Check fine details and transparent areas, then download selected images or the completed batch as a ZIP file.
How Does the PNG to AVIF Converter Work?
The CompressFly PNG to AVIF converter reads PNG images and converts them into AVIF files directly in your browser. Unlike online converters that require file uploads, CompressFly handles image conversion with modern browser technology. No files are sent to a server: everything is processed locally, individually or in bulk. Smart image conversion makes changing formats simple and free, with no signup required.
What "in your browser" means
- Your PNG files are not uploaded to a server
- Conversion runs locally on your device
- Converted AVIF images are downloaded directly from your browser
Bulk PNG to AVIF Converter
Convert 300+ PNG images to AVIF in one batch. Add photos, screenshots, and graphics, or select an entire folder. Apply the same AVIF quality setting to the batch, preview the results and file sizes, and download all completed images as a ZIP file.
Bulk PNG to AVIF conversion runs directly in your browser. No registration, credit card, or software installation is required.

Why Use CompressFly to Convert PNG to AVIF?
Fast PNG to AVIF Conversion
Convert PNG files to AVIF directly in your browser without waiting for files to upload to or download from a server.
Batch PNG to AVIF Conversion
Convert 300+ PNG files to AVIF at once, then download the completed batch as a ZIP file.
No Software Installation
Use the PNG to AVIF converter in your browser without installing desktop software or plugins.
Easy to Use
Convert PNG images to AVIF through a simple interface, without needing image-editing experience.
Preview Before Downloading
Review each converted AVIF image and its output file size before downloading it to your device.
Private & Secure
Your PNG files are processed locally in your browser and are not uploaded to a server.
Related PNG and AVIF Tools
PNG to AVIF Converter FAQ
How do I convert PNG to AVIF online?
Convert PNG images to AVIF in three steps: 1. Add your PNG images or select a folder. 2. Keep AVIF as the output format, adjust the quality if needed, and start the conversion. 3. Preview the results and download the AVIF files individually or together as a ZIP file.
Is the PNG to AVIF converter free?
Yes. The PNG to AVIF converter is free to use. No registration or credit card is required.
What is an AVIF file?
AVIF is an image format based on AV1 compression. It supports transparency and both lossy and lossless compression. Converting PNG to AVIF re-encodes the image; changing the filename extension alone does not convert the file.
Does AVIF support transparent PNG backgrounds?
Yes. AVIF supports transparency, including partially transparent areas. Review the converted image to check transparent edges and backgrounds. Converting to AVIF does not remove an existing solid background.
Can I use the converted AVIF images on my website?
Yes, if your website platform accepts AVIF. Current versions of major browsers support the format, but some website platforms and image editors may not. Check the requirements of the platform where you plan to use the converted images.
Can I convert multiple PNG images to AVIF at once?
Yes. Add multiple PNG images or select an entire folder, apply the same AVIF quality setting to the batch, and download the completed files together as a ZIP file.
How to convert PNG to AVIF without losing quality?
Choose the highest possible output quality setting.
Is there a file size limit, and are my PNG images uploaded?
Your PNG images are processed locally in your browser and are not uploaded to a server, so there is no server upload limit. The practical limit depends on your device's available memory and processing power, especially for very large images or batches.