How to Convert JPG to AVIF Free (And Cut File Size in Half)

Converting JPG to AVIF takes about 5 seconds and typically cuts your file size by 50–70% with no visible quality difference. AVIF is the next-generation image format now used by Netflix, Google, and major e-commerce platforms — and you can convert your existing JPGs for free, right in your browser, without uploading anything to a server.

Here is exactly how to do it, what quality settings to use, and when AVIF is the right choice over WebP or PNG.

Step-by-Step: Convert JPG to AVIF in Your Browser

The entire process takes under a minute:

1. Open the tool — no account, no signup required.
2. Drop your JPG files — drag and drop or click to select. You can convert multiple files at once.
3. Adjust the quality slider — the default is 50, which produces results equivalent to JPG at quality 85–90. For most web images, leave it at 50. For photos where you need maximum sharpness, try 40–60.
4. Download your AVIF files — each file downloads individually. A 500 KB JPG typically becomes 150–250 KB as AVIF.

Everything processes inside your browser. Your original files never leave your device — there is no upload step, no cloud processing, and no file size limit.

Understanding AVIF Quality Settings (They Work Differently)

AVIF quality numbers are not the same as JPG quality numbers. A common mistake is setting AVIF quality to 85 expecting JPG-level results — but AVIF quality 85 is visually close to lossless, which means larger files than you need.

AVIF Quality	JPG Equivalent	Best For
30–40	JPG 70–75	Thumbnails, background images
45–55	JPG 82–90	Most web photos (recommended default)
60–70	JPG 92–95	Product photos, detailed images
80+	Near-lossless	Archiving (file size will be large)

For everyday web use, quality 50 is the sweet spot. You get dramatic file size savings with results that are indistinguishable from the original in a browser.

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Real File Size Comparison: AVIF vs JPG vs WebP

AVIF consistently outperforms both JPG and WebP in compression. Here are typical real-world results:

• A 500 KB JPG photo becomes roughly 150–200 KB as AVIF at quality 50 — a 60–70% reduction.
• The same photo as WebP would be around 320–380 KB — WebP saves 25–35%, but AVIF saves nearly twice as much.
• A 2 MB product photo often compresses to 500–700 KB as AVIF with no visible quality loss at quality 50–55.

These savings add up quickly if you are running a website. Converting 100 product images from JPG to AVIF can reduce your total image payload from 50 MB to 15–20 MB — directly improving page load speed and Core Web Vitals scores.

Browser Support: Does AVIF Work Everywhere?

AVIF now covers about 93% of web users. Supported browsers include:

• Chrome (desktop and Android) — full support since Chrome 85
• Firefox — supported since version 93
• Safari — supported since iOS 16 / macOS Ventura (2022)
• Edge — full support
• Samsung Internet — supported

The main gap is older Safari (pre-2022) and Internet Explorer. If you need to support very old browsers, a fallback strategy using the HTML <picture> element lets you serve AVIF to modern browsers and JPG to older ones:

<picture>
  <source srcset="image.avif" type="image/avif">
  <img src="image.jpg" alt="...">
</picture>

For most modern websites, you can serve AVIF directly without a fallback — the 93% coverage is comparable to WebP a few years ago, and WebP is now universally accepted.

When to Use AVIF, When to Stick With JPG

AVIF is the right choice when:

• You are optimizing images for a website and want the smallest possible files
• Your audience is mostly on modern browsers (Chrome, Firefox, recent Safari)
• You are working with product photos, hero images, or any large web graphics
• Page speed and Core Web Vitals matter to you

Stick with JPG when:

• You need to share images with people who may use older software or devices
• You are sending images by email where format compatibility is important
• The destination platform (like some social media apps) does not accept AVIF

For archiving or editing, use PNG instead — it is lossless and universally supported. AVIF is best reserved for final web delivery, not as a working file format.

Frequently Asked Questions

Does converting JPG to AVIF lose quality?

It depends on the quality setting. At quality 50 (the default), the output looks identical to the original JPG in a browser — you will not be able to see any difference. If you lower the quality below 30, you may start to see compression artifacts. The conversion is lossy, but with default settings the quality difference is invisible to the human eye.

Can I convert multiple JPGs to AVIF at once?

Yes. The tool supports batch conversion — drop multiple JPG files at once and they all convert together. Each file downloads individually.

Is AVIF better than WebP?

AVIF produces smaller files than WebP at the same visual quality — typically 20–30% smaller. However, AVIF takes slightly longer to encode and has marginally narrower browser support. For maximum compression with modern browsers, AVIF wins. For the widest compatibility, WebP is a safe choice.

Can I upload an AVIF back to social media platforms?

Most social platforms (Instagram, Facebook, Twitter/X, LinkedIn) do not accept AVIF uploads — they still require JPG or PNG. AVIF is best used as a web delivery format, not for social media uploads. If you need to upload to social platforms, keep your original JPG or convert to PNG.