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How to convert JPG to AVIF

Transform your JPG images into AVIF in seconds. Everything runs in your browser — no file ever leaves your device.

4 min readUpdated on April 25, 2026

You want transparency, higher visual quality, or to work in an editing pipeline that needs exact pixel preservation. Web performance is your #1 priority and you accept marginal compatibility trade-off.

What is JPG?

A lossy-compressed image format created by the Joint Photographic Experts Group in 1992. It's the most universal photo format — every browser, app, and OS opens JPG without anything extra.

  • Photos with lots of detail and color variation
  • Images sent over email or social media
  • Cases where file size matters more than absolute quality
  • Mid-quality print material

Why convert to AVIF

A next-generation format based on the AV1 video codec, released in 2019. Compresses even further than WebP — typically 30-50% smaller than JPG at the same visual quality. Adopted by Netflix, YouTube, and increasingly by big sites for performance-critical images.

  • Sites obsessed with Core Web Vitals
  • Hero images and heavy banners
  • E-commerce where latency hits conversion
  • Content distributed over bandwidth-limited networks
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Step-by-step: convert your image

1. Upload the file

Drag your JPG file into the upload area, or click to select it from your computer. You can upload several files at once — they'll be converted in batch.

2. Check the quality setting

AVIF has adjustable quality in most cases. Leave it at 85-90% for the best size/quality balance. For professional material, bump it to 95-100%.

3. Click convert and download

Processing is near-instant (seconds per image) because it happens right in your browser. When it's done, download each file individually or all together as a ZIP.

JPG vs AVIF: technical comparison

Before converting, it's worth understanding what each format brings to the table:

JPG — best for:

  • Photos with lots of detail and color variation
  • Images sent over email or social media
  • Cases where file size matters more than absolute quality
  • Mid-quality print material

JPG — limitations:

  • No transparency (background is always opaque)
  • Repeated compression degrades quality (visible artifacts)
  • Not ideal for graphics with text, fine lines, or flat color areas

AVIF — best for:

  • Sites obsessed with Core Web Vitals
  • Hero images and heavy banners
  • E-commerce where latency hits conversion
  • Content distributed over bandwidth-limited networks

AVIF — limitations:

  • Support still smaller than WebP on very old browsers
  • Slower encoding (but fast decoding)
  • Editors and design tools still catching up
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When converting from JPG to AVIF makes sense

Typical scenarios where this conversion solves a real problem:

  • Photos with lots of detail and color variation
  • Images sent over email or social media
  • Sites obsessed with Core Web Vitals
  • Hero images and heavy banners

Frequently asked questions

Quality depends on both formats. For conversions between modern formats with similar quality (PNG → WebP, for example), the visual loss is imperceptible. For conversions to lossy formats (anything → JPG), quality depends on the level you pick — 85-90% is practically indistinguishable from the original.