Reach Reddit

Inspiration Reddit is one of the most powerful — and most misunderstood — platforms for organic growth. We kept seeing founders and indie hackers get shadowbanned or ignored, not because their product was bad, but because they posted in the wrong subreddit, used the wrong tone, or sounded too promotional. We built ReachReddit because great products deserve to be discovered, and Reddit shouldn't feel like a minefield.

What it does ReachReddit is an AI-powered Reddit marketing co-pilot. You describe your product, and it:

Analyzes thousands of subreddits to recommend where your post will perform best Drafts native-feeling posts in real time — matching each subreddit's tone, culture, and rules Flags risk factors before you post, so you stay compliant and ban-free Helps you grow genuinely and organically, not through spam or self-promotion hacks

How we built it We built ReachReddit using a React frontend with a FastAPI backend. Subreddit analysis is powered by Reddit's public API combined with an LLM layer that scores product-subreddit fit based on topic relevance, community rules, and post history. Real-time post drafting uses prompt-engineered Claude calls that adapt tone based on the target community. We used Firebase for auth and user session management.

Challenges we ran into Reddit's API has strict rate limits and spotty documentation, which made subreddit data ingestion tricky. The hardest problem was teaching the model to write posts that feel human and native — not like marketing copy. Generic AI-sounding text gets downvoted instantly on Reddit, so we spent a lot of time refining prompts to match community voice. Balancing "helpful promotion" vs. "spammy self-promotion" was a surprisingly nuanced line to walk.

Accomplishments that we're proud of

Built a working subreddit-fit scoring system that surfaces non-obvious communities a founder would never think to post in Achieved post drafts that pass Reddit's informal "does this feel like a real human wrote it" test Shipped a complete, usable MVP within the hackathon window — from idea to live demo

What we learned Reddit has an unwritten social contract that most marketers ignore entirely. We learned that community fit matters far more than reach — a post in a 5K-member niche subreddit can outperform one in a 2M-member general one. We also learned how much prompt engineering matters when the output needs to blend in, not stand out.

What's next for Reach Reddit

Post scheduling with optimal timing recommendations per subreddit Comment strategy mode — engage in threads authentically before dropping your product Analytics dashboard to track upvotes, engagement, and traffic driven per post Chrome extension so you can get subreddit suggestions and draft posts without leaving Reddit Expanding beyond Reddit to other community platforms like Hacker News and Indie Hackers