Image to AVIF Converter

Convert images to AVIF with quality, speed, resizing, lossless mode, and batch ZIP export.

Upload images
Choose one or more local images to convert in your browser.
Conversion settings
Tune AVIF quality, encoder speed, and output size before export.
75%

Higher quality preserves more detail and usually creates larger files.

100%

Resize the output from 10% to 400% of the original dimensions.

6

Lower values spend more time searching for smaller files; higher values finish faster.

Preserve exact pixel values when size is less important than fidelity.

AVIF results
Preview converted files and download individual images or a batch ZIP.
No converted images yet
Upload images and run conversion to see AVIF previews here.

What AVIF Is

AVIF is a modern image format that can reduce file size while keeping good visual quality. It supports transparency and high compression efficiency, which often makes it a strong choice for photos, product imagery, and web assets that need to stay sharp without wasting bandwidth.

Why Use This Converter

Use this tool when you need smaller web-ready images without sending files to a server. It converts images locally in your browser, lets you adjust quality, encoder speed, lossless mode, and output scale before download. When you convert multiple images, the tool also prepares a ZIP so the batch is easy to save.

How It Works

  1. Upload one or more image files.
  2. Choose the AVIF quality, speed, lossless mode, and output scale.
  3. Convert the files in a browser worker.
  4. Preview each result, download individual AVIF files, or download the ZIP.

Tips for Better Results

  • Use a quality value around 70-80 for photos and screenshots as a practical starting point.
  • Lower quality when file size matters more than fine detail.
  • Lower speed values can produce smaller files, but they take longer on large images or batches.
  • Use lossless mode for diagrams, UI assets, or images where exact colors matter.
  • Keep scale at 100% for format-only conversion, or reduce it when the image will be displayed smaller on the page.
  • Compare the original and output file sizes because some tiny or already compressed images may not get smaller after AVIF encoding.