When to choose PNG over JPG
PNG is the safer target whenever your image is anything other than a photograph. Screenshots, logos, diagrams, UI mockups, and text-heavy graphics all suffer visibly from JPG compression — edges smear and flat colors pick up noise. PNG stores every pixel exactly as decoded, so the output matches the AVIF source with no new artifacts. Just as importantly, PNG supports an alpha channel. If your AVIF has transparent regions — a logo with a cutout background, for instance — those regions survive the conversion intact instead of being flattened.
How the conversion runs
AVIF decoding is built into every current browser, so this tool doesn't need to download a codec before it can start. Your file is handed to a Web Worker, which decodes the AVIF off the main thread and writes the pixels out as a PNG using the browser's standard canvas encoder. One honest trade-off worth knowing: PNGs are usually much larger than the AVIF you started with, because AVIF's compression is far more aggressive. The size comparison shown after each conversion makes the difference plain, so you can decide whether the compatibility and lossless quality are worth it.
Private by design, built for batches
Everything described above happens on your computer, inside this page. No image data crosses the network at any point — a design fact, not a policy promise, since there is no server that could receive your files in the first place. Queue up a whole folder if you need to: three files convert simultaneously, and finished PNGs can be saved individually or bundled into a single ZIP. There are no sign-ups, no watermarks, and no cap on how many files you convert.