JPG to AVIF Converter
AVIF (AV1 Image File Format) is the most efficient image format in mainstream use today. Convert a JPG to AVIF and you can typically cut the file size by around 50% at visually identical quality - roughly twice the saving of WebP. For a website serving thousands of images, switching from JPG to AVIF can halve your image bandwidth overnight.
Drag & drop images here, or click to upload
Supports JPG, PNG, GIF, SVG, ICO, BMP, AVIF, WebP
PixConvert encodes AVIF entirely in your browser using WebCodecs, so nothing is uploaded and conversion is instant. Batch-convert your JPG library, fine-tune quality with the slider, and compare results with the before/after preview. All modern browsers - Chrome, Firefox, Safari 16+, Edge - decode AVIF, making it a safe default for web delivery in 2026.
Why convert JPG to AVIF?
About 50% smaller than JPG
AV1's codec efficiency far exceeds JPEG's 30-year-old algorithm. At the same visual quality, AVIF files are routinely half the size.
Better than WebP compression
AVIF beats even WebP by a wide margin at low and medium bitrates, and supports HDR, 10/12-bit color, and wide gamut - features JPG cannot represent at all.
Core Web Vitals boost
Smaller hero images mean faster LCP. AVIF is the single most effective format change you can make for page speed today.
Local, private, instant
Encoding happens on your device with no server round-trip. Private photos stay private, and there is no queue or upload limit.
How to convert JPG to AVIF
- 1
Upload your JPG images
Drag and drop JPG files or click to browse. Batch upload as many images as you need - every file is processed automatically.
- 2
AVIF output is preselected
Set quality via the slider or presets. Around quality 50-60, AVIF already matches or exceeds the visual quality of a quality-80 JPG.
- 3
Compare with the preview
The slider comparison shows original and converted side by side. AVIF's efficiency means you can usually lower quality further than with WebP.
- 4
Download
Save files individually or as a ZIP archive. Conversion happened entirely in your browser.
Frequently asked questions
Is AVIF really smaller than WebP?
Yes, generally by 20-30% at equivalent quality, and the gap widens at lower bitrates. If maximum compression is the goal, AVIF is the current best choice; WebP remains a strong fallback.
Which browsers support AVIF?
Chrome 85+, Firefox 93+, Edge, Opera, and Safari 16+ all decode AVIF. As of 2026 that covers well over 95% of global browser usage.
Why does AVIF encoding take longer than WebP?
AV1 compression is computationally heavier. In-browser encoding uses hardware acceleration where available; on older devices expect a few seconds per image. Batch conversion runs each file automatically.
Does converting JPG to AVIF lose quality?
Both formats are lossy, so a re-encode happens, but AVIF's modern codec preserves detail much better per byte. At moderate quality settings the output is typically indistinguishable from the source.
Is there a size limit per image?
No server-side limits exist because no server is involved. Practical limits come from your device memory - images of tens of megapixels convert fine on a typical laptop.