What is Convert Image to JPG?
Convert Image to JPG takes images in any supported format — PNG, WebP, AVIF, HEIC, BMP, TIFF, GIF — and outputs standard JPEG files. JPG is the universal image format. Every email client, every social media platform, every printer, every device made in the last 30 years can open a JPG. When you have an image in a format that someone else can't open, converting to JPG solves the problem instantly. The tool handles transparency by compositing against a background color (white, black, or gray) since JPEG doesn't support alpha channels. You control the output quality from 10% to 100%. At 85%, you get a good balance between file size and visual quality. At 95%+, the output is nearly indistinguishable from the original. Everything runs in your browser — no server involved.
Convert Image to JPG Formula
A universal input decoder paired with an optimized JPEG encoder produces compatible output from any source format.
Multi-Format Decoding
The tool identifies the input format from the file's header bytes and uses the appropriate decoder — native browser decoders for PNG, WebP, AVIF, GIF, and BMP, or a bundled decoder for HEIC and TIFF.
Transparency Flattening
If the input image has an alpha channel (PNG, WebP, AVIF), transparent pixels are composited against your chosen background color. JPEG requires a flat, opaque image — no transparency survives the conversion.
JPEG Encoding
The flattened image is encoded as JPEG using DCT-based compression at your specified quality level. The encoder produces a standard JFIF-compliant file that opens in any application.