Best subreddits to launch a SaaS or side project
Tuesday night, you pasted the same launch post into five subreddits and went to bed hopeful. By Wednesday, three mods had removed it, one room ignored it, and one stranger called it "another wrapper." Reddit is not one audience. It is thousands of small rooms, each with a bouncer and a mood. Here is which rooms welcome builders, which only let you in on certain nights, and the one room most people forget to walk into.
New: timing, soft value vs hard launch, titles that survive, karma realities, and a 5–7 day plan — How to launch on Reddit without getting removed.
The room that matters most
Builder subreddits are full of other builders. They give generous feedback and almost never become customers. Your first paying users are somewhere else: a subreddit where people in your niche already complain about the exact problem you solved. Bookkeepers in an accounting sub. Teachers in a teaching sub. Shopify sellers in an ecommerce sub.
In those rooms you do not "launch." You answer the question someone asked last week, honestly, and mention that you built a tool for it. That one helpful comment often outperforms ten launch posts. Use the builder subreddits below for feedback, momentum and your first few testers. Not sure which niche room fits? Try the free Where do my users hang out? finder.
Pair this with How to do a Show HN, the Product Hunt alternatives and the 31 free launch directories.
Builder and launch subreddits
Rules change. Read each sidebar and pinned post before you post. Links go to the subreddit's front page.
- 1. r/SideProject
The most direct home for "I built this." Show a screenshot or short demo, say why you made it, and ask a specific question. - 2. r/indiehackers
Solo founders comparing notes. Revenue numbers, lessons and honest postmortems do better than polished announcements. - 3. r/SaaS
SaaS founders talking pricing, churn and growth. Lead with the problem and what you learned; link your product in context. - 4. r/microsaas
Small, focused products built by one or two people. A good fit if your app does one job well. - 5. r/IMadeThis
Makers of every kind sharing what they made. Lighter on business talk, heavier on "look at this." - 6. r/alphaandbetausers
Built for exactly one thing: finding early testers. Say what you need tested and what testers get. - 7. r/roastmystartup
Blunt critique of your landing page and idea. Painful, cheap, and better here than from silent visitors. - 8. r/buildinpublic
Progress updates, numbers and small wins. Good for a running story, less good for a one-shot launch. - 9. r/webdev on Showoff Saturday
Web projects are welcome on Saturdays; self-promotion other days tends to get removed. Show the build, not the pitch. - 10. r/startups
Strict about promotion. Look for the pinned or recurring thread for sharing your startup, and keep standalone posts to real questions. - 11. r/EntrepreneurRideAlong
Founders documenting the journey. A story of how you got your first ten users fits; an ad does not. - 12. r/selfhosted and r/opensource
Only if your project is open source or self-hostable. Link the repo first, the hosted version second.
How to post so you get to stay
- Read the rules first. Sidebar, pinned posts, required flair, weekly threads. Most removals are rule misses, not bad products.
- Make the post useful without the click. What you built, why, what you learned, one screenshot. The link is a bonus, not the point.
- Say you built it. "I made this" earns more trust than pretending to be a happy customer. Never fake it.
- Write each post for its room. Pasting one post into ten subreddits on the same night looks like spam to mods and filters. Pick two or three and space them out.
- Stay and reply. The first hour of comments decides the thread. Answer the skeptics kindly and fix what they found.
- Be a person there before you launch. A brand-new account whose first post is a link gets treated like a bot. Comment and help for a while first.
- Want the full how-to? How to launch on Reddit without getting removed covers soft vs hard launch, title formulas, timing, and a week-long $0 plan.
A post shape that works
- Title: what it does for whom, in plain words. "I built a tool that turns invoices into a weekly cash report for freelancers."
- The itch: two sentences on the moment you got fed up enough to build it.
- What it does now: one screenshot or a 20-second clip.
- What is rough: be honest about what is missing.
- The ask: one specific question. "Would you trust this with bank data? What would make you?"
FAQ
What is the best subreddit to launch a side project?
r/SideProject is the most direct fit. But real users usually come from a niche subreddit where your target users already talk about the problem.
Can I post my startup on r/startups or r/Entrepreneur?
Both are strict about self-promotion. Check the rules and pinned posts first; a lesson-learned post fits better than an announcement.
How do I avoid getting removed?
Follow each subreddit's rules, use the right flair or thread, disclose that you built it, make the post useful on its own, and reply to comments.
Should I post to many subreddits on the same day?
No. Pick two or three that fit, write each post for that room, and space them out.
Stuck on the words? The free launch post generator turns six answers into Reddit, Show HN, Indie Hackers and X drafts.
Want the right rooms found for you?
Get100Users maps the subreddits and communities where your users already hang out and writes native posts you can publish yourself. Free for the first 10 indie builders.