What is an AVIF file?

AVIF (AV1 Image File Format) was introduced in 2019. It uses the AV1 video codec to compress images at up to 70 percent smaller than JPG with equivalent quality. AVIF is the modern successor to JPG for web delivery.

What is the difference between JPG and AVIF?

JPG is the older universal format. AVIF is modern, produces 50-70 percent smaller files, and supports transparency and animation. Both are lossy formats, but AVIF's compression is far more efficient.

Will converting JPG to AVIF lose quality?

AVIF is lossy by default, so some fine detail is discarded. At typical quality settings, the difference is invisible to the human eye at normal viewing sizes.

Is AVIF smaller than JPG?

Yes, typically 50-70 percent smaller at equivalent visual quality. A 500 KB JPG might become a 150-200 KB AVIF. This makes AVIF the best choice for serving photos on websites.

Does AVIF support transparency?

Yes. AVIF supports full alpha transparency — something JPG does not. This makes AVIF useful for logos and web graphics that need transparency.

Is AVIF supported by browsers?

Yes. AVIF is supported by Chrome 85+, Firefox 93+, Safari 16.1+, and Edge 121+. That covers over 95 percent of global web traffic.

Should I use AVIF or JPG?

For web delivery, use AVIF — smaller files mean faster pages and better SEO. For maximum compatibility, keep JPG. Best practice is to serve AVIF with a JPG fallback using the picture tag.

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About JPG to AVIF conversion

JPG (also written JPEG) has been the universal standard for photographs since 1992. It uses lossy compression to produce small files and is supported by every device, browser, and application in existence. JPG is the most common image format on the planet.

AVIF (AV1 Image File Format) was introduced in 2019 by the Alliance for Open Media. It uses the AV1 video codec to compress images at 50-70 percent smaller than JPG while maintaining equivalent or better visual quality. AVIF is the modern successor to JPG for web delivery.

Why Convert JPG to AVIF?

If you serve JPG photos on a website, converting to AVIF can cut file sizes by 50-70 percent without visible quality loss. Smaller files mean faster page loads, better Core Web Vitals scores, and improved SEO. AVIF is supported by all modern browsers.

JPG vs AVIF — The Comparison

JPG is universal, mature, and lossy-only. AVIF is modern, more efficient, and supports both lossy and lossless modes plus transparency and animation. For web delivery in 2026, AVIF is the better choice. For maximum compatibility, keep JPG as a fallback.

Quality

At typical quality settings (quality 60-80), AVIF's visual output is indistinguishable from an equivalent JPG at normal viewing sizes. The file size difference is dramatic — often 3-5x smaller.

Browser Support

AVIF is supported by Chrome 85+, Firefox 93+, Safari 16.1+, and Edge 121+. That's over 95 percent of global web traffic. Use a picture tag with JPG fallback for legacy browsers.

How to Convert JPG to AVIF

Upload your JPG file using the tool on this page. ConvertFileBox processes it server-side and provides an .avif download instantly. No signup, no file limits. Files are automatically deleted after 1 hour.

Also available: AVIF to JPG Converter

JPG vs AVIF: at a glance

Property	JPG	AVIF
Compression	lossy	both
Transparency	No	Yes
Animation	No	Yes
Color depth	24-bit	up to 12-bit
Created by	Joint Photographic Experts Group	Alliance for Open Media
Introduced	1992	2019
Best for	photographs, email attachments, web thumbnails	next-gen web images, HDR photos, bandwidth savings

JPG uses lossy compression; AVIF uses lossless. Converting won't restore lost detail, but it prevents further quality degradation during editing and archiving.