How to Convert JPG to AVIF
Upload your JPG
Drag it in or click Upload Your Image.
AVIF is already selected
This page defaults Convert To to AVIF - change it if you want a different format instead.
Optionally set a target size
Leave it on Best Quality, or pick a KB target (20/50/100/200KB or custom) if you need a specific file size.
Click Convert
The file downloads automatically as soon as it's ready.
JPG vs AVIF
Compression efficiency. AVIF's compression, derived from the AV1 video codec, is substantially more advanced than JPG's decades-old approach, typically producing a much smaller file at comparable visual quality.
Quality at the same size. Where JPG shows blockiness or ringing artifacts as compression increases, AVIF tends to hold up better at aggressive compression levels, preserving more natural detail.
Browser support. All current major browsers support AVIF, but it's newer than JPG, so very old browsers or some legacy tools may not read it - worth keeping in mind for niche audiences.
Encoding speed. AVIF is more computationally expensive to encode than JPG, which is why this tool uses a fast search pass and only performs one slower, high-quality final encode for the version you actually download.
Common Use Cases
- ·Reducing photo page weight beyond what JPG or even WebP already achieve
- ·Preparing hero images and above-the-fold photography for fast page loads
- ·Shrinking product photography for ecommerce at scale
- ·Optimizing images for sites where performance scores directly affect rankings or conversions
Frequently Asked Questions
It varies by image, but 40-60% smaller at similar visual quality is a common result for photographic content.
It can be slower than JPG or WebP to encode, which is why this tool uses a fast search pass and only does one slow, exhaustive final encode for the winning result.
All current major browsers do. A small share of very old browser versions don't, which matters mainly if you know your audience skews toward outdated software.
For a website, many setups serve AVIF to browsers that support it and fall back to JPG or WebP automatically for the rest, so you don't have to choose one or the other.
It handles sharp edges and text reasonably well, though - like any lossy format - very fine text can show minor artifacts at aggressive compression. For pixel-perfect text, a lossless format like PNG is safer.
At the quality levels this tool targets by default, the difference is typically minimal to unnoticeable on screen, while the file size drops substantially.
Even a small site benefits from faster-loading images, though the impact is naturally more noticeable on image-heavy pages or slower connections than on a handful of small icons.
Yes, with no account, watermark, or usage limit.