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JPG to AVIF converter
Free JPG to AVIF converter in your browser. Files stay on this device. Nothing is uploaded.
Drop images here
or click to choose. Paste works too.
Files never leave this device. Conversion runs in your browser.
Why convert JPG to AVIF?
JPG is lossy (photographs and everyday sharing when file size matters). AVIF is lossy (cutting-edge web images when browser support is acceptable). Converting JPG to AVIF remaps pixels into the target container in your browser. AVIF can store transparency even if the JPG source did not.
What changes in the file
- Both formats are lossy; a fresh encode may change fine detail and file size
- AVIF can keep an alpha channel for later edits
- You can resize, adjust quality where relevant, and strip EXIF on export
- Conversion runs on this device — the file is not uploaded
How to convert JPG to AVIF
- Drop one or more JPG files onto the converter (or pick them from disk).
- Confirm the output is set to AVIF, then adjust quality, size, or metadata if needed.
- Download the converted AVIF file — processing never left your browser.
About JPG
JPG (JPEG) is a lossy raster format built for photographs. It shrinks file size by discarding detail the eye is less likely to notice, which makes it a default for cameras, email, and the open web.
About AVIF
AVIF is a next-generation image format based on the AV1 video codec. It typically yields smaller files than WebP or JPG at similar quality and supports transparency and high bit depth.
Common questions
Is this JPG to AVIF converter free?
Yes. Formatly converts JPG to AVIF in the browser at no charge and without an account.
Do you upload my JPG files?
No. Decoding and encoding run locally with browser APIs and WebAssembly codecs when needed. Files stay on this device.
Will converting JPG to AVIF reduce quality?
AVIF is lossy, so you trade some detail for smaller files. Use a higher quality setting when fidelity matters.