JPG to AVIF Converter
Convert JPG images to modern AVIF for the smallest file sizes - runs entirely in your browser.
Drag, drop, paste, or browse
JPG, PNG, WEBP, GIF, AVIF, HEIC, TIFF, RAW, and SVG up to 25 MB. Paste from clipboard with Ctrl+V.
Settings
Tune output without leaving the browser.
Before / after preview
Compare the source image with the generated file.
Result download
Your processed image will appear here.
Useful to know
Privacy and processing
AVIF encoding runs in your browser via a small WebAssembly encoder (~300KB) that's downloaded once and cached for offline use. Your file never uploads to a server.
JPG to AVIF online with ImgShifter
JPG to AVIF Converter runs directly in your browser. JPG files decode on-device using the Canvas API, and the AVIF output is encoded by a small WebAssembly encoder (~300KB, also cached for offline). Your image never leaves your device.
AVIF is the smallest mainstream image format, often 30-50% smaller than WEBP at the same quality. Support is now wide (Chrome 85+, Firefox 93+, Safari 16+), making it production-ready for most web workflows.
You can verify the no-upload behavior in your browser's Network tab, or by disconnecting from the internet after the page loads - the tool keeps working.
Related tools
Other ImgShifter tools people use alongside JPG to AVIF.
PNG to AVIF
Convert PNG images to AVIF for dramatically smaller files - browser-based, no upload.
WEBP to AVIF
Convert WEBP images to AVIF for even smaller files - fully private, in-browser conversion.
JPG to PNG
Create crisp PNG files from JPG images with a fast local conversion workflow.
JPG to WEBP
Convert JPG images to modern WEBP for smaller file sizes with strong quality.
Frequently asked questions
Short answers for image workflows, privacy, and supported formats.