70+ Reddit Channels to Promote Your Product (and What to Post in Each)

Why Subreddit Selection Is Your Highest-Leverage Variable

Reddit has over 100,000 active communities, but roughly 200 of them account for the majority of meaningful product discovery. The gap between posting in the right subreddit versus the wrong one isn't a rounding error — it's the difference between 3 upvotes and 3,000 views, between no signups and a week of inbound DMs.

The mistake most founders make isn't their post — it's their target. A developer tool posted in r/entrepreneur reaches people who are interested in building businesses, not in developer tools. The same post in r/webdev or r/programming reaches the exact people who would actually use it.

Step-by-Step: How to Find Your Best Subreddits

1. List the job titles or roles of your ideal customer. A founder selling a project management tool might list: software engineering manager, indie developer, startup CTO, freelance designer.
2. Search Reddit for each role. Use the Reddit search bar with your role + “advice” or “questions” and look at which subreddits keep showing up in the results.
3. Check the sidebar of each candidate subreddit for posting rules, karma requirements, and self-promotion policies. Note which ones allow product posts and on what conditions.
4. Sort by “Top (Past Month)” in each subreddit to understand what format actually works there. If the top posts are long founder stories, that's the format. If they're short demos or screenshots, that's the format.
5. Build a shortlist of 8–12 subreddits and create a one-line note on what format and framing fits each one.

Subreddit         | Members  | Post rules               | Best format for my product       | When to post
------------------|----------|--------------------------|----------------------------------|-------------
r/entrepreneur    | 1.2M     | No pure promo; story OK  | Founder journey + product byline | Tue–Thu 9am EST
r/SaaS            | 180K     | No ads; case studies OK  | Metrics + real use case          | Mon–Wed 10am EST
r/startups        | 850K     | Self-promo Sat only      | Problem narrative + demo link    | Saturday AM
r/indiehackers    | 120K     | Product posts OK         | Revenue milestone + product link | Any day 8–10am EST
r/webdev          | 1.3M     | Show HN style OK         | Technical demo + GitHub link     | Tue–Thu 9am EST
r/[your vertical] |          |                          |                                  |
r/[your vertical] |          |                          |                                  |

How to Post Without Getting Banned or Downvoted

Every subreddit has a different culture, and the fastest way to destroy traction is to post the same promotional message everywhere. What works in r/entrepreneur (founder story, personal journey) will get removed in r/webdev (technical, show-don't-tell) and ignored in r/SaaS (metrics, real use cases).

• Read the rules first. Most bans happen because people don't. Self-promotion rules vary wildly — some require karma thresholds, others have specific posting days.
• Match the format to the community. r/indiehackers wants revenue numbers. r/startups wants the problem story. r/webdev wants a demo or a GitHub link.
• Engage before you post. One week of genuine commenting before your first product post changes how the community receives it entirely.
• Lead with value, not the product. The posts that drive the most signups are almost always the ones where the product is mentioned as a byline, not a headline.

Post Templates by Community Type

Use these as starting points — always rewrite them in your own voice and with your real story.

Title: I quit [job/situation] to build [what it is] — here's what the first [X months] actually looked like

I've been [background]. The problem I kept running into: [specific problem in plain language].

I spent [X months] building [product name]. It's a [one-sentence description]. No VC, no team — just me trying to solve something I kept running into.

Here's what I've learned so far:
- [Honest lesson 1]
- [Honest lesson 2]
- [Honest lesson 3 — ideally something that didn't go as expected]

Still early — [X] users, [Y revenue/signups/metric]. If you're dealing with [problem], happy to share what I learned or show you what I built.

[link in comments or "DM me"]

Title: [X months] in, [specific milestone] — what worked and what didn't

Product: [name + one-line description]
Revenue: $[X] MRR / [X] paid users / [X] signups
Time to first $: [X months]

What worked:
→ [Channel/tactic 1] — drove [X]% of signups
→ [Channel/tactic 2] — [what happened]
→ [Unexpected win]

What didn't:
→ [Thing that seemed obvious but failed]
→ [Channel that underperformed]

Current focus: [what you're working on now]

Happy to answer questions — especially about [area you can help with].

Product link: [url]

Title: I built [what it is] — here's how it works under the hood

[One paragraph: what the tool does and the specific technical problem it solves]

The interesting part was [technical decision or constraint] — [why you made that choice and what the tradeoff was].

Stack: [tech stack]
Repo: [GitHub link if open source]
Demo: [link]

I specifically focused on [technical differentiator] because [honest reason].

Would love to hear from anyone who's dealt with [the technical problem] — curious how others have approached it.

The 3-Week Multi-Subreddit Rollout Strategy

The compounding approach: post the same product across different communities over two to three weeks, each time framing it differently for that audience. Each post reaches a different segment with a message that actually fits them.

WEEK 1 — Foundation
  Day 1:  r/entrepreneur — founder story post
  Day 3:  r/indiehackers — milestone/metrics post
  Day 5–7: Comment on 5–10 threads in your vertical communities; do NOT mention product

WEEK 2 — Vertical Expansion
  Day 8:  r/[vertical community 1] — problem-focused post, product as solution
  Day 10: r/[vertical community 2] — different angle, same product
  Day 12: r/SaaS — use case + metrics post

WEEK 3 — Technical and Niche
  Day 15: r/webdev or r/[technical community] — how it's built post
  Day 17: r/startups — lessons learned post (allowed on Sat for self-promo)
  Day 19: Respond to any "looking for X tool" threads that appeared during weeks 1–2

ONGOING (after week 3):
  - Comment on buying-intent threads daily (10–15 min/day)
  - Respond to every DM within 24 hours
  - One new product post per subreddit per 2–4 weeks max

This also builds your Reddit profile. A profile with a history of valuable posts across multiple communities converts at a higher rate when you comment on a buying-intent thread — your profile is evidence that you're a real person who contributes, not an account that only appears when there's something to promote.

Common Mistakes That Kill Reddit Traction

• Posting the same title across subreddits. Reddit's “recent posts” feature on your profile makes this visible. Rewrite the title and angle for every community.
• Posting too frequently in one subreddit. More than once per week in any single community triggers spam suspicion, even if your posts are different.
• Skipping the engagement warm-up. A brand-new account that posts a product link in its first post gets removed by moderators and automod filters in most large subreddits.
• Ignoring comments. A post with lots of comments and no responses from the OP looks abandoned. Respond to every comment in the first 24 hours to keep the thread alive.
• Putting the link in the title or first line. URLs in post titles are blocked in most subreddits. Lead with the story; put the link at the end of the post or in the first comment.

The Full Channel List

The database below contains 60+ subreddits organized by category — B2B software, developer tools, marketing, productivity, e-commerce, and more — with member counts, ideal post formats, and engagement timing notes for each.