Tutorial · convertImage
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.
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
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
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
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