PNG to AVIF Online Converter
Quickly convert PNG images to AVIF format. Supports batch conversion with adjustable quality and encoding presets.
Drop PNG images here
or click to select files, supports multiple selection
Why Use Our PNG to AVIF Converter
Fast Encoding
Two-speed preset system: fast encoding for daily use and maximum compression for smallest files. Toggle between them instantly — no complicated settings.
Extreme Compression
AVIF's AV1 codec achieves 30-50% smaller files than WebP at the same quality. Convert your PNGs to AVIF and save significant bandwidth without visible quality loss.
Batch Processing
Select multiple PNG images at once for batch conversion. Process an entire folder in one click and download all converted AVIF files together.
Privacy Protection
All conversion is done locally in your browser using WASM-powered vips. Images are never uploaded to any server — they never leave your device.
How to Convert PNG to AVIF Online Free
Upload Your PNG Files
Click the upload area or drag PNG images directly into your browser. Our PNG to AVIF converter handles multiple files at once — select an entire folder and convert them all simultaneously. Processing happens entirely in your browser using WASM, so your files stay private and never leave your device.
Choose Your Preset and Quality
Pick "Fast Encoding" for quick daily conversions with balanced quality, or "Maximum Compression" for the smallest possible AVIF files. The quality slider lets you fine-tune between 10% and 100%. For web use, 70-85% quality with maximum compression produces stunning results at a fraction of the original PNG size.
Download Your AVIF Files
Each converted AVIF image shows a preview with the new file size compared to the original PNG. Download individually or click "Download All AVIF" to grab everything at once. The AVIF files are ready for modern websites, saving bandwidth and speeding up page loads on supported browsers.
PNG to AVIF Tips
Why Switch from PNG to AVIF
PNG is great for lossless storage, but its files are large. AVIF uses the AV1 video codec to compress images 30-50% more efficiently than WebP and up to 50% smaller than JPEG at equivalent quality. For websites, this means faster page loads, lower bandwidth costs, and better Core Web Vitals scores — especially on image-heavy pages. Your users on mobile data plans will thank you.
Fast Encoding vs Maximum Compression
"Fast Encoding" (speed 6, quality 80) processes images quickly for everyday use — great for drafts, social media, or when you need results now. "Maximum Compression" (speed 0, quality 50) takes longer but produces the absolute smallest AVIF files, ideal for archival or when every byte matters. Try both to see which balance of speed and size works for your project.
When to Use AVIF
AVIF is perfect for web images, especially photographs and complex graphics where file size matters. Use it for hero images, product photos, backgrounds, and UI assets on modern websites. However, for screenshots with fine text, line art, or images you plan to edit later, consider keeping the original PNG — AVIF's lossy compression can introduce subtle artifacts in sharp edges, and re-encoding degraded quality further.
Frequently Asked Questions
What is AVIF format?
AVIF (AV1 Image File Format) is a next-generation image format that uses AV1 compression technology. It can produce images up to 50% smaller than JPEG at the same quality level, and supports modern features like HDR, wide color gamut, and transparency. It's the most efficient image format widely supported today.
Will I lose quality converting PNG to AVIF?
AVIF uses lossy compression, so there is some quality loss. However, at high quality settings (80+), the difference is visually imperceptible for most images, including photos. AVIF's AV1 codec is significantly more efficient than JPEG, meaning you get smaller files at comparable quality. For line art or text-heavy graphics where every pixel must be preserved exactly, keep the original PNG.
Which browsers support AVIF?
AVIF is supported in Chrome 85+, Firefox 93+, Safari 16.4+, and all Chromium-based browsers like Edge and Opera. The format is also supported by most major image editing tools and operating systems. Check caniuse.com for the latest browser support information.
How many PNG files can I convert at once?
There is no limit on the number of files. Select a whole folder of PNGs and convert them all at once. Each image is processed independently using wasm-vips right in your browser, and you can download them individually or click 'Download All AVIF' to get everything in one go.