Advanced Reddit search tool.
R/ALL automatically recovers most of the deleted comments in a thread and highlights them in red.
If you want to read deleted comments in a specific post, open that post on Reddit and in the URL remove the “r” from reddit.com and replace it with “c” to make it ceddit.com. Below is an example of the URL changing:
Track a Reddit user.
Reddit Investigator is a way to discover many things about redditors. It works just by collecting the data that reddit makes available and elaborates it to obtain some new useful info.
This website renders graph of related subreddits.