Visit at https://json.nenad.dev or https://nenad.github.io/json-parser.
This repository hosts the depacked code of the now defunct http://json.parser.online.fr/beta/ website. It was taken from archive.org with the help of the amazing wayback_machine_downloader.
I was sad when I opened my favorite page for parsing JSON and saw that it's down. I told my friends that I was disappointed how slow other tools are and they suggested to use archive.org to find it and resurrect it through GitHub's pages. Now I can be happy again!