Free tool

Subreddit finder

Type a topic and get matching subreddits, with subscriber counts and descriptions, so you can find where your audience actually talks.

How the subreddit finder works

Enter a topic, a product category or a problem ("meal prep", "project management", "home espresso"). We search Reddit's communities for matches and list each subreddit with its subscriber count and description.

How to search well

  • Search the problem, not just the category. "Invoicing" finds a few subreddits; "freelancing", "bookkeeping" and "small business" find where people who need invoicing actually hang out.
  • Search the job title. For B2B products, role-based communities (sales, sysadmin, marketing, accounting) are often where buying questions get asked.
  • Try singular and plural, and common abbreviations. Subreddit names are often short or quirky.
  • Search your competitors' names. Some products have their own subreddits, and their users post questions and complaints there.

How to read the results

Subscriber count shows reach, not activity. A 2 million member subreddit can be quieter than a 40,000 member one. Before you commit time to a community, open it in subreddit stats to see posts per day, median comments and the rules.

The description tells you what is on-topic. If your topic is a side note in the description, posts about it may be removed.

Small and niche often beats big. In a focused subreddit, a helpful answer is more likely to be read by people with exactly the problem you solve. Large general subreddits move fast and are stricter about anything that looks promotional.

Build a shortlist

For most products, a handful of well-chosen subreddits beats a long list. For each candidate:

  1. Check activity and rules with subreddit stats.
  2. Read the top posts of the past month to learn what the community values.
  3. Note whether self-promotion is allowed, and where.
  4. Check the best time to post if you plan to post, not just comment.

Then participate. Answer questions, share what you know, and build karma before you mention anything you sell. Our Reddit marketing strategy guide covers how.

Skip the shortlist entirely

Finding subreddits is step one. Finding the threads inside them where someone is asking for what you sell is the part that takes hours. BoomReddit does that from your product URL: it works out what you sell, scans Reddit 24/7 for posts and comments with buying intent, and you do not need to build a subreddit list by hand (though you can add one).

Frequently asked questions

How do I find subreddits about a topic?

Enter the topic above. Also search the problem your audience has and their job titles, since the best communities are not always named after the category.

How do I find niche subreddits?

Search specific terms (a tool, a hobby technique, a job role) instead of broad categories, and look at the subreddits mentioned in the sidebars of communities you already like.

Which subreddits are best for marketing my product?

The ones where your customers ask questions, with rules that allow participation from people in the industry. Check each candidate's rules and activity with subreddit stats.

Does subscriber count matter?

Less than activity. Posts per day and comments per post tell you whether people actually show up.

Why can't I find a subreddit I know exists?

Private subreddits are not visible unless you are a member, and banned or quarantined ones may not appear in search. Results reflect what Reddit makes publicly searchable. Try the exact name, or a shorter version of it.

Find your buyers on Reddit today.

Paste your URL and see the first buying-intent threads within the hour. We write the reply and post it from a warmed-up account; approve each one or let it run.