Tool

AVIF converter

Convert JPG, PNG, WebP, and other images to AVIF for the smallest file sizes on the web. Processing happens entirely in your browser, nothing leaves your device.

No uploadsNo trackingWorks offlinelibavif · WASM

How it works

Convert to AVIF in three steps

No software to install, no sign-up. Works on any device with a modern browser.

01

Drop your image

Select any JPG, PNG, WebP, GIF, or other common image format. You can convert a whole batch at once.

JPGPNGWEBPGIF
02

Set quality

Balance file size against visual quality with the slider, or turn on Lossless for a pixel-perfect result at a larger file size.

QualityLossless
03

Download

Your AVIF files download ready to use on your site, in an app, or wherever you need the smallest possible file size.

Single fileBulk ZIP

Why AVIF

AVIF vs JPEG and PNG

AVIF wins on file size in almost every case. Here is when it makes sense.

AVIFRecommended

Smallest files, modern browsers

  • 30-50% smaller than JPEG at equivalent visual quality
  • Supports transparency, like PNG, but at a fraction of the size
  • Supported by 92%+ of browsers in 2026
  • Best for web images, thumbnails, and photo galleries
Best for

Fast-loading websites, apps, and image-heavy pages

JPEG / PNGUniversal

Works absolutely everywhere

  • Supported by every browser, app, and device made in the last 20 years
  • No encoding time cost, near-instant to produce
  • PNG keeps every pixel lossless; JPEG trades quality for size
  • Good fallback for the small share of older browsers
Best for

Maximum compatibility, legacy systems, print workflows

FAQ

Frequently asked questions

Everything you need to know about AVIF and converting images.

Images never leave your device
Works without an internet connection
libavif runs fully in your browser

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