A free subreddit finder: search any keyword and get the 25 most relevant subreddits, sorted by subscriber count, with descriptions and live activity. No signup, no card — built for B2B and niche audience research.
Most founders pick subreddits wrong. They jump to the largest community in their space — r/Entrepreneur, r/marketing — and get buried under 800k subscribers and a wall of "just shipped my SaaS" posts. The good leads are deeper.
Pick 6 to 8 subreddits in three tiers:
Use this subreddit finder to find candidates — search the problem your product solves, then check subscriber count and activity. A 200k-subscriber sub with 5k online is usually more useful than a 900k sub with 12k online: better signal-to-noise.
Already know you sell B2B? Skip the search and start from our curated directory of the best subreddits for B2B lead generation, grouped by category — SaaS, marketing, e-commerce, freelancing, and more.
A subreddit finder is a tool that takes a keyword or topic and returns the Reddit communities (subreddits) most relevant to it. Instead of guessing subreddit names or browsing Reddit manually, you search a term and get a ranked list with subscriber counts and activity, so you can quickly see where a given audience actually gathers.
Yes. The LeadsRadar subreddit finder is completely free with no signup, no card, and no usage limit. It queries Reddit's public community index and returns up to 25 matching subreddits per search.
Type any keyword — a product category, an audience, a problem, or an interest. The tool searches Reddit's community index and returns the 25 most relevant subreddits, sorted by subscriber count, each with its description and live online-user count so you can judge how active it is.
Search the problem your product solves rather than your product category — you'll surface the communities where buyers describe pain, not just where competitors market. Then weigh subscriber count against activity: a 200k-subscriber sub with 5k online usually beats a 900k sub with 12k online on signal-to-noise.
Six to eight: two general subs for accidental discovery, three to five niche subs where your customer self-selected, and one or two adjacent subs. More than that and the noise drowns the signal. Our curated B2B subreddit directory groups them by category to make this faster.
LeadsRadar runs scans across the subs you pick, scores every thread against your ICP, and writes 5 reply drafts per lead. 20 leads free.
Try 20 leads free, no card