Image to JPG Converter

Converting images to JPG does not require installing Photoshop, downloading desktop software, or uploading files to a server. Krunkit processes your images entirely inside your web browser using WebAssembly technology — the same standard that powers Google Earth and Figma in the browser. Simply drag your PNG, WebP, AVIF, or other image file onto the drop zone, and the conversion begins automatically. Your original file remains untouched on your computer while the converted JPG appears within seconds.

The most common question beginners ask is 'what quality should I choose?' The answer depends on your purpose. For sharing photos on social media, messaging apps, or personal blogs, quality 80 is the sweet spot — files are small enough to upload quickly, and the visual difference from the original is imperceptible to most viewers. For professional use like client deliverables or portfolio images, bump the quality to 90-92. Only choose quality 95+ if the image will be printed at large scale.

After conversion, Krunkit displays a side-by-side comparison showing your original image next to the converted JPG, along with exact file sizes and the percentage saved. This transparency helps you understand the trade-off you are making. If the converted image shows visible blocky artifacts — most common around sharp text or thin lines — simply increase the quality slider by 5-10 points and the image reprocesses automatically in about 300 milliseconds.

One important thing to know: JPG does not support transparency. If your source image has a transparent background — common with logos, stickers, and product cutouts — the transparent areas will be filled with a solid color (white by default in Krunkit). This is not a bug; it is a fundamental limitation of the JPEG format. If you need to keep the transparent background, convert to WebP or PNG instead.