No, not the website: the git project.If you want a web app, try redact.dev (yes, there's a paid version where you can download your old messages, but the free one wipes out your posts (with random text) for free.
I spent a chunk of this afternoon nuking my old reddit posts. Thousands and thousands of posts... thank goodness for shreddit.
And even that too 8 freaking years! WTF.