What is JPG to AVIF Converter?
JPG to AVIF Converter takes your existing JPEG photos and compresses them into AVIF — a format built on the AV1 video codec. The result? Files that are 50–70% smaller than the original JPEG at the same perceived quality. A 500KB product photo becomes 150KB. A 2MB hero image drops to 600KB. This matters for website speed, mobile data usage, and storage costs. Google uses AVIF across its services. Netflix adopted it for thumbnails. The format supports 10-bit and 12-bit color depth, HDR, and wide color gamuts — capabilities JPEG simply doesn't have. This converter processes everything in your browser. No upload required. Your original JPEG stays untouched on your device while you get a smaller, sharper AVIF version.
JPG to AVIF Converter Formula
Your browser handles the entire conversion pipeline — decode, process, encode.
JPEG Decoding
The browser reads your JPG file and decompresses it from DCT-encoded blocks back into raw RGB pixel data. No alpha channel exists in JPEG, so the output is 3-channel color.
Canvas Processing
The raw pixel data is drawn to an HTML5 Canvas element at full resolution. The canvas holds the uncompressed image in memory, ready for re-encoding.
AVIF Encoding
The canvas exports the image using the browser's AVIF encoder. AV1-based compression analyzes each region of the image and applies optimal compression — textured areas get aggressive compression, edges stay sharp.