Does converting JPG to PNG improve quality?

No — it preserves the JPEG's existing quality; PNG just adds lossless storage and transparency support going forward.

JPG to PNG

Convert JPG (JPEG) images to PNG format, run entirely client-side with no quality loss beyond the original JPEG compression.

Click to upload an imageor drag and drop

Runs entirely in your browser — files are never uploaded anywhere.

Convert PNG images to JPG.

Convert images between PNG, JPEG, and WEBP formats.

Convert WEBP images to PNG.

Convert PNG images to the smaller WEBP format.