JPG to AVIF
AVIF is the image format that finally makes JPG look wasteful — same photo, often less than half the size, at the same visible quality. If you're optimizing a website, cutting storage, or just want the smallest possible image without the blur, converting JPG to AVIF is the upgrade. FluidConvert does it right in your browser: your photo never leaves your device.
Drop your file here, or browse
Accepts: image/jpeg, .jpg, .jpeg · Max 1GB · always free
Your files are encrypted with TLS and automatically deleted after conversion.
Simply upload your .JPG file and we'll convert it to .AVIF format — fast, free, and secure.
Fast & Free
Convert files up to 1GB completely free. No account, no limits.
Secure
Files are encrypted and automatically deleted after conversion.
High Quality
Industry-leading conversion with no quality loss.
How to Convert JPG to AVIF
Upload Your File
Click the upload area above or drag and drop your .JPG file. We support files up to 1GB, completely free.
Choose Output Format
Select .AVIF as your target format. Adjust any conversion settings if needed.
Download Your File
Click Convert Now and wait a few seconds. Once complete, download your converted file instantly.
About JPG to AVIF
Last updated: August 2026
What is JPG?
JPG (JPEG) is the decades-old default for photos — universally supported but built on 1990s compression. It does a fine job, but at a given quality level a JPG is significantly larger than what modern formats can achieve, which adds up fast across a photo library or a web page full of images.
Why convert to AVIF?
AVIF (AV1 Image File Format) uses the modern AV1 codec to compress photos far more efficiently than JPG — commonly 50% smaller or more at the same perceived quality, with better handling of gradients and fewer blocky artifacts. For websites it means faster loads and better Core Web Vitals; for storage it means fitting twice as many photos in the same space. Every current major browser now displays AVIF.
What to expect from the conversion
JPG to AVIF is a re-encode, so it's technically lossy-to-lossy, but at sensible quality the result looks identical to the source while weighing far less. You won't gain back detail JPG already discarded, but you also won't lose anything you'd notice. Expect dramatically smaller files, especially for detailed or gradient-heavy photos.
How FluidConvert handles it
This conversion runs entirely in your browser — your JPG is decoded and re-encoded to AVIF on your own device and never uploaded to a server. It's private by design, free, and needs no account.
Common reasons to convert JPG to AVIF
- Shrinking website photos to speed up page loads and improve Core Web Vitals
- Cutting the storage footprint of a large photo library in half
- Serving next-gen images to modern browsers while keeping quality high
- Reducing image weight in emails and documents without visible quality loss
- Future-proofing an image archive with a modern, efficient format
Frequently Asked Questions
Is AVIF better than JPG?
For file size at a given quality, yes — AVIF is typically 50% smaller or more and handles gradients and flat color better. The only catch is that AVIF is newer, so a few very old apps or browsers may not open it; all current browsers do.
Will my photo lose quality converting JPG to AVIF?
Not visibly at normal settings. AVIF is so efficient that it matches the source's appearance at a fraction of the size. You can't recover detail the original JPG already threw away, but the conversion itself won't add noticeable loss.
Does JPG to AVIF happen in my browser?
Yes. FluidConvert converts the image locally on your device — nothing is uploaded — so it's safe for private or sensitive photos.
Why is my AVIF so much smaller than the JPG?
AVIF uses the modern AV1 codec, which is far more efficient than JPEG's 1990s compression. Same visual quality, roughly half the bytes (often less).
Where can I use AVIF files?
On the web (all current browsers), and in most modern image viewers and editors. For maximum compatibility with older software, keep a JPG copy or convert back when needed.