Nuke Reddit History is described as 'IMPORTANT: This extension only works with reddit profiles in the new format. To get your profile in the new format, go here https://www.reddit.com/profile-beta-confirmation' and is an app. There are four alternatives to Nuke Reddit History for a variety of platforms, including Mac, Windows, Linux, Web-based and Android apps. The best Nuke Reddit History alternative is Redact.dev, which is free. Other great apps like Nuke Reddit History are PowerDeleteSuite, Shreddit and Social Amnesia.
Automate the mass deletion of posts, messages, and comments across Twitter, Reddit, Discord, Facebook, and more with a cloud-based dashboard offering analytics, advanced filters, selective removal, and scheduling to efficiently manage digital footprints.
Power Delete Suite is a tool that allows you to mass delete your Reddit posts and comments.
Shreddit is a Python command line program which will take a user's post history on the website Reddit, and will systematically go through the user's history deleting one post/submission at a time until only those whitelisted remain.
Forget the past. Social Amnesia makes sure your social media accounts only show your posts from recent history, not from "that phase" 5 years ago.
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You have to pay to delete comments and posts using Redact and it is way too pricey.