How to Search Reddit Comments by User

Short answer: Reddit does not have a search box that searches only one user's comments. Its search is built for finding things across the whole site, not for pulling one person's comment history into one place and searching inside it. To search a specific user's comments by keyword, you need a lookup that gathers that person's comments first and then lets you filter them.

This guide covers how to actually do that, including comments that were removed from a thread before you got there.

Why Reddit's own search does not do this well

Reddit's search bar is built to search post titles and text across communities, not to comb through one account's comment history. Open someone's profile and you get a feed of their comments in order, with no keyword box and no way to jump straight to the one comment you half remember posting about a certain topic. For an active account with years behind it, that means scrolling, not searching. And whatever you do scroll through only shows what is currently live. A comment removed by a moderator or a spam filter drops out of that feed, even though the account posted it.

How to search a Reddit user's comment history

A username lookup on deletedby.com handles both problems at once: it pulls a user's comments into one page, including ones removed from the thread, and gives you a search box to filter them.

1. Open the home page and enter the username, with or without the u/ prefix.
2. Switch to the Comments tab.
3. Type a word or phrase into the search box. It filters as you type, and keeps loading more of that person's comment history in the background so a search covers more than just the first page.

No account, no login, and it's free.

Searching by keyword

The comments search box matches against the text of each comment as it loads, so you can search for a name, a phrase, a subreddit someone mentioned, anything you remember about what was said. It's a live filter scoped to the one user you looked up, which is the whole point. It won't search Reddit at large, only the person you're looking at.

Filtering by date

Next to the search box is a date range filter, so a comment search can be narrowed to the last 30 days, 90 days, or year instead of scanning an entire history. Useful when you roughly remember when something was posted but not the exact wording.

Does it include removed and deleted comments?

Comments a moderator or an automated spam filter took down are included in the search, shown with their original text where a copy exists, the same as any other comment. There's also a toggle to show only the removed ones. Comments the author deleted themselves are handled differently: they're labeled so you know one existed, but the text itself is not shown, since that's content the person chose to erase. For the fuller breakdown of that distinction, see removed vs deleted.

Do I need a Reddit account?

No. Searching a user's comment history this way needs no login and nothing is tied to your Reddit account. It reads from public records of what was posted, not from a live Reddit session.

The bottom line

Reddit doesn't give you a way to search one user's comments by keyword, and it won't show you the ones that were removed. A username lookup does both: it gathers a person's comment history in one place and lets you search inside it, removed comments included. Look up a username and try the Comments tab.