🧠Free tool · Subreddit Finder
Find the subreddits where your post belongs
The right subreddits rarely have your keywords in their name. Describe what you want to share and our AI assistant searches wide, reads each candidate, and ranks the subreddits where your post actually belongs, including ones you didn't know existed.
Free to use. 3 finder runs a month included.
How it works
- Describe what you want to share: a product, an article, a project, a question. Anything you would post.
- Our AI assistant does a wide sweep of Reddit, far beyond what a name search would find. It judges each candidate on three signals: the subreddit name, its description, and a sample of what actually gets posted there.
- You get a ranked report: why each subreddit fits, how to frame your post so it lands well, and cautions like self-promotion bans. Before you post, not after a ban.
- Monitor the subreddits that matter so you catch every future conversation where your content is relevant.
Much more powerful than searching for subreddits on Reddit.com
Reddit's own search matches subreddit names, and names rarely contain your intent. If you have lessons from training for a marathon, searching reddit.com for "marathon training blog" won't surface r/C25K, but that is exactly where your post belongs. The finder searches by intent instead: it sweeps Reddit wide, reads each subreddit's description and recent posts, and surfaces the ones that genuinely fit, most of which you would never have found by guessing. Then it reads the room for you: what tone works there, and where self-promotion is a fast track to a ban.
Frequently asked questions
How does the subreddit finder work?
You describe what you want to share, in your own words. Our AI assistant does a wide search across Reddit and judges every candidate on three signals: the subreddit name, its description, and a sample of recent posts. That is how it surfaces relevant subreddits whose names have nothing to do with your keywords. The report ranks them and explains why each one fits, how to frame your post there, and any posting rules to watch out for.
Will it warn me about subreddits that ban self-promotion?
Yes. When the research finds signals that a subreddit restricts promotion, requires flair, or has strict rules, those show up as cautions on the report card for that subreddit. Posting in the wrong place is how accounts get banned, so we treat the warnings as the most important part of the report.
Is it really free?
Yes. Free accounts include 3 finder runs a month, every month. Paid plans add more runs and continuous monitoring of the subreddits you choose.
What do I do with the results?
Post where you are genuinely relevant. Then monitor those subreddits so you catch every future conversation where your content is the answer. One click turns your report into a continuous Reddit alert.
Found your subreddits? Now never miss a conversation in them.
The report tells you where to post today. An alert tells you every time someone in those subreddits starts a conversation you should be part of. RedditAlert emails you while the thread is still fresh.
🔔Create your first alertFree account, no credit card required.