Growth guide
Reddit growth strategy: 60 subreddits to promote your startup
Where to post, what the rules are, how much karma you need, and the post formats that actually get upvoted instead of removed.
Best subreddits by category
60 communities across 8 categories, with member counts, rules and what works in each.
SaaS & Startups
11 subredditsThe default home for SaaS founders. Members are building software themselves, so they engage with launch stories, pricing debates and feedback threads. Give context instead of dropping a link.
- Best:
- Share your story, not just your product
- Rules:
- No direct promotion without context
Huge general startup community. Launch stories, growth breakdowns and honest post-mortems do well. Obvious self-promotion gets buried fast.
- Best:
- Focus on lessons learned and insights
- Rules:
- Must provide value, not just promote
One of the largest business communities on Reddit. Authentic posts about the journey — wins and failures — travel well and can drive serious traffic.
- Best:
- Share actionable insights and real experiences
- Rules:
- Educational content preferred
Smaller but highly engaged. Because of the size your post won't get lost, which makes it a good place for detailed feedback on a business model or positioning.
- Best:
- Ask specific questions and engage with responses
- Rules:
- Constructive discussion encouraged
Indie hackers shipping small, profitable products. The community rewards transparency about revenue, churn and the reality of building solo.
- Best:
- Share real metrics, SEO wins, and indie hacker insights
- Rules:
- Focus on small, profitable SaaS projects
Bootstrapped founders sharing real revenue numbers and growth tactics. Content marketing and organic growth threads land well here.
- Best:
- Focus on actionable insights and revenue transparency
- Rules:
- Share real metrics and be transparent
Small business owners, both online and offline. Your product has to show obvious business value to a broad, non-technical audience.
- Best:
- Show clear business value and ROI
- Rules:
- Must be relevant to small business owners
Small, focused community of bootstrapped operators. Practical advice and revenue updates over theory.
- Best:
- Share real metrics and practical insights
- Rules:
- Focus on independent, bootstrapped businesses
Owners actively trying to scale what they already have. Growth tactics and tools with proof attached get attention.
- Best:
- Share specific growth strategies and results
- Rules:
- Must focus on business growth
Built around founders documenting progress in real time. Ideal for a running series of build-in-public updates rather than a one-off launch post.
- Best:
- Post regular updates with real numbers and lessons
- Rules:
- Document your journey transparently
Service businesses and unglamorous companies that make actual money. No-nonsense crowd — skip the hype, bring numbers.
- Best:
- Share concrete tactics and real revenue numbers
- Rules:
- Focus on practical, real-world businesses
Feedback & Launch
8 subredditsBrutally honest critique of your product, landing page or positioning. Harsh, but it surfaces blind spots nobody in your circle will mention.
- Best:
- Ask specific questions and be ready for tough feedback
- Rules:
- Must be open to honest criticism
Makers showing what they're building. Supportive audience, good for early users and constructive feedback on a work in progress.
- Best:
- Share your building journey and lessons learned
- Rules:
- Show your work and process
One of the few subreddits explicitly built for promotion. Small, but nobody will report you for pitching.
- Best:
- Provide clear value proposition and context
- Rules:
- Promotional content welcome
People who genuinely enjoy testing unfinished products. Expect rough-edge tolerance and useful bug reports.
- Best:
- Say what stage you're at and what feedback you need
- Rules:
- Must be a testable product (alpha or beta stage)
Showcase community for things you built. Works best with a visual product or a demo worth watching.
- Best:
- Include screenshots or a demo to show what you built
- Rules:
- Must be something you personally created
Self-promotion is the entire point. Smaller audience, but every visitor arrived expecting a pitch.
- Best:
- Still write a compelling description — don't just drop a link
- Rules:
- Self-promotion is the point
Validation before you build. Members will tell you if it exists already, whether the market is real, and what will bite you.
- Best:
- Explain your idea concisely and ask targeted questions
- Rules:
- Present a clear idea for feedback
Dedicated beta testers hunting for new software to break. Good source of detailed bug reports and usability notes.
- Best:
- Explain what you're testing and how to send feedback
- Rules:
- Product must be in beta/testing phase
Marketing & SEO
12 subredditsMarketing professionals who want to know what actually worked, not what should work in theory. Be ready to back up any claim.
- Best:
- Include real data and results
- Rules:
- Share practical marketing insights
The main SEO community. Very active, very opinionated. If your product touches search, expect expert-level scrutiny.
- Best:
- Share SEO case studies with real data and screenshots
- Rules:
- No low-effort promotional posts
Agency and in-house professionals. More technical and enterprise-flavoured than r/SEO — great for B2B tools.
- Best:
- Contribute expert-level insights before promoting anything
- Rules:
- Professional-level discussion only
Small community actively hunting for tools that move rankings. Show the mechanism, not the marketing copy.
- Best:
- Explain how your tool improves SEO with examples
- Rules:
- Must be SEO-related
Content strategy, creation and distribution. Practical playbooks beat frameworks.
- Best:
- Share actionable content marketing case studies
- Rules:
- Focus on content marketing
Broad marketing audience spanning beginners to seasoned operators. Good for growth case studies.
- Best:
- Share actionable marketing strategies
- Rules:
- Must provide marketing value
Unconventional acquisition and retention tactics. Generic advice dies here; specific tactics with metrics thrive.
- Best:
- Post specific tactics with real metrics
- Rules:
- Share actionable growth tactics
Affiliate marketers looking for programs and tools. Worth a post if you have an affiliate program to recruit for.
- Best:
- Share real earnings data and proven strategies
- Rules:
- No get-rich-quick schemes
Hands-on advertisers running real budgets across Google and Meta. Ideal for ad tooling and analytics products.
- Best:
- Share campaign data, optimizations, and results
- Rules:
- Must be relevant to paid advertising
Social strategy across every platform. Fits scheduling tools, analytics and content products.
- Best:
- Share platform-specific insights with real examples
- Rules:
- Must be related to social media marketing
Professional copywriters. Your post is your audition — sloppy writing gets torn apart before your product does.
- Best:
- Write excellent copy in your post
- Rules:
- Focus on copywriting craft and business
Deliverability, automation, list building. Good home for email tools, CRMs and newsletter products.
- Best:
- Share open rate/CTR data and what worked
- Rules:
- Must relate to email marketing
Developer & Tech
10 subredditsWeb developers who appreciate technical craft. Lead with an interesting engineering problem you solved.
- Best:
- Focus on technical innovation and developer benefits
- Rules:
- Must be relevant to web development
Enormous reach, brutal standards. Only post if the work is genuinely technically interesting — promotion is heavily scrutinised.
- Best:
- Share technical writing or open source, not product pages
- Rules:
- No direct product promotion
Values transparency and contribution. Works if you've open-sourced a meaningful piece of your stack.
- Best:
- Share your GitHub repo and explain your contribution
- Rules:
- Must be related to open-source
Privacy-conscious people running their own infrastructure. A self-hostable version is your entry ticket.
- Best:
- Provide Docker setup and be transparent about licensing
- Rules:
- Must be self-hostable or related to self-hosting
Technical JS audience that will read your source. Frameworks, packages and browser tooling fit.
- Best:
- Share code examples and technical deep-dives
- Rules:
- Must be JavaScript-related
React devs who care about DX, docs and tests. A live demo is close to mandatory.
- Best:
- Include a live demo and clear documentation
- Rules:
- Must be React-related
Large, practical community. Clean code, real docs and obvious utility carry the post.
- Best:
- Show code snippets and explain your approach
- Rules:
- Must be Python-related
Engineers and SREs with zero patience for vapourware. Frame everything around the operational pain you remove.
- Best:
- Explain the problem you solve with real scenarios
- Rules:
- Must relate to DevOps practices
Massive audience of learners hungry for resources. Positioning matters: teach first, sell never.
- Best:
- Frame your product as a learning resource
- Rules:
- Must be educational and helpful
General tool discovery. Recommendation threads make it easy to mention your product where it genuinely fits.
- Best:
- Answer recommendation threads where you naturally fit
- Rules:
- No spam or excessive self-promotion
Design & UX
3 subredditsLayout, typography and visual craft. If your interface is genuinely well made, this is where it gets noticed.
- Best:
- Include high-quality screenshots of your design work
- Rules:
- Must relate to web design
Designers, researchers and PMs discussing methodology. They care about your process more than your screenshots.
- Best:
- Share your UX process and research, not just the result
- Rules:
- Must be UX-related and professional
Interface critique and tooling. Before/after breakdowns consistently outperform plain showcases.
- Best:
- Post before/after comparisons or design breakdowns
- Rules:
- Must be related to UI design
AI & Automation
5 subredditsBroad AI audience spanning research and applications. Explain the model work, not the feature list.
- Best:
- Explain the AI/ML behind your product
- Rules:
- Must be related to artificial intelligence
Enormous and fast-moving. A genuinely impressive demo can drive huge traffic; anything mediocre disappears.
- Best:
- Show a compelling demo or unique use case
- Rules:
- Must be related to ChatGPT or AI tools
Technical, privacy-focused, running models on their own hardware. Local or open-model support is the price of entry.
- Best:
- Share benchmarks, model comparisons and technical details
- Rules:
- Must relate to local/open-source LLMs
Builders shipping without code. They actively hunt for new tools — this is a rare community that welcomes discovery.
- Best:
- Show what users can build with your tool in a demo
- Rules:
- Must be related to no-code/low-code
Workflow and process automation. Concrete before/after workflows are the currency here.
- Best:
- Share specific workflow automations with before/after
- Rules:
- Must relate to automation
Side Hustles & Freelance
5 subredditsPeople building income on the side and actively looking for tools that help.
- Best:
- Show how your product enables side income
- Rules:
- Must relate to side income or hustles
Large remote-earning community. Receptive to anything that supports online work — as long as you're honest about the money.
- Best:
- Share legitimate opportunities with realistic expectations
- Rules:
- Must be related to working online
Freelancers across every industry discussing clients, pricing and tooling. Invoicing, time tracking and PM tools fit naturally.
- Best:
- Address real freelancer pain points with specifics
- Rules:
- Must relate to freelancing
Niche site and content business builders. Strong fit for SEO tools and monetisation products.
- Best:
- Share traffic and revenue data from your projects
- Rules:
- Focus on building online businesses
Digital products, SaaS and automated revenue. Real income breakdowns get the engagement.
- Best:
- Share real income breakdowns and how you got there
- Rules:
- Must relate to passive income strategies
Niche Platforms
6 subredditsCelebrates elegant, useful websites. The bar is high, but a single successful post can send hundreds of thousands of visitors.
- Best:
- Focus on what makes your product unique and beautiful
- Rules:
- Must be genuinely impressive or useful
Always looking for new ways to work better. Strong fit for productivity apps and workflow tools.
- Best:
- Show concrete productivity improvements with examples
- Rules:
- Must genuinely improve productivity
App discovery and recommendation threads — an easy place to surface your product where it's actually asked for.
- Best:
- Answer 'what app does X' threads genuinely
- Rules:
- Must be app-related
The most targeted audience you'll find for an extension. Members install and give detailed feedback.
- Best:
- Explain what it does and link the Web Store page
- Rules:
- Must be Chrome extension related
Infographics and visual guides. Build something genuinely useful in your niche and it can go viral — but it must stand alone as content.
- Best:
- Create a genuinely useful infographic in your niche
- Rules:
- Must be a visual guide or infographic
Massive tech news community. Direct promotion is near-impossible; newsworthy angles and industry analysis are the only way in.
- Best:
- Frame your product within a larger industry story
- Rules:
- No direct self-promotion
Member counts are approximate and subreddit rules change often. Always read the current sidebar rules before you post.
How Reddit works: karma, upvotes and the algorithm
Karma is your permission slip
Karma is Reddit's reputation score, earned through upvotes on your posts (post karma) and comments (comment karma). It matters because most communities on this list set a minimum karma and account age in AutoModerator before you can post at all — commonly 10–100+ comment karma. A brand-new account literally cannot post in most of them.
The first hour decides everything
Every post starts in New. Early upvotes push it into Hot, which is what most people actually browse. The algorithm weighs the upvote ratio, the speed of engagement (comments count for more than votes) and the age of the post — older posts decay no matter how well they did. If your post doesn't catch in the first hour, it's over.
Text posts beat link posts
Self-posts let you tell a story, give context and place a link naturally in the body. Link posts read as promotional and pull downvotes in discussion-first communities. For startup promotion, text posts win almost every time — save link posts for genuinely useful resources.
Moderators and AutoModerator
Every subreddit has its own rules. Some allow promotion only on a specific day, some ban it outright, many enforce a 90/10 rule. AutoModerator silently removes posts from accounts that are too new, too low-karma or that trip keyword filters. A removed post is recoverable; a ban usually isn't.
Build the account before you promote anything
The most common founder mistake is signing up and immediately posting about their product. It fails every time — people click your username, see nothing but self-promotion, and report you.
Answer questions you actually know
You built something — you know your industry, your stack, or your market. Find threads where people ask about it and leave detailed, genuinely useful answers.
Comment early on rising posts
Sort by Rising or New and comment before a post blows up. Early comments on posts that take off collect the most karma.
Participate in communities you enjoy
Hobbies, sports, whatever. It builds karma naturally and makes your profile look like a person instead of a marketing bot.
Share other people's good stuff
Curating useful articles and tools that aren't yours is valued, builds karma, and costs you nothing.
Plan on 2–4 weeks before your first promotional post: an account 30+ days old, karma in the hundreds, and comments spread across multiple subreddits. The upside is that by the time you're ready to post, you'll instinctively know what the community rewards — worth more than any growth hack.
Strategy: how not to get banned
What works
- Share your journey and the lessons you learned
- Ask for feedback on your product
- Post helpful content first, promote later
- Engage with comments and other people's posts
- Be transparent about being the founder
- Follow the 90/10 rule — 90% value, 10% promotion
What gets you banned
- Dropping links with no context
- Copy-pasting the same post everywhere
- Only ever posting to promote your own stuff
- Ignoring subreddit rules
- Being relentlessly promotional
- Using multiple accounts to upvote yourself
The 3-2-1 rule
For every 1 promotional post, leave 3 helpful comments on other people's posts and publish 2 valuable posts with no promotion in them at all. Reddit can smell spam from a mile away — but it genuinely likes founders who show up and contribute.
Post templates that work
Five structures that consistently land. Swap in your own details.
Launch story
r/SaaS, r/startups, r/SideProject, r/indiehackers"I built [X] in [Y] days — here's what happened"
- 01Open with the problem and why existing solutions fell short.
- 02Cover the build briefly: stack, timeline, key decisions.
- 03Share early traction — signups, traffic, revenue, feedback.
- 04List 3–5 specific lessons others can apply.
- 05End with a real question: 'What would you change?'
Tip: Be specific with numbers. '14 days' beats 'quickly'.
Feedback request
r/RoastMyStartup, r/alphaandbetausers, r/roastmyidea"Can you roast my [product]? Looking for honest feedback"
- 01Explain what it does in 2–3 sentences, no jargon.
- 02Say exactly who it's for.
- 03Name 3–4 things you want feedback on (pricing, copy, onboarding).
- 04Link it, and make it usable without a login wall.
- 05Mention what you've already tried and changed.
Tip: 'What's confusing about the pricing page?' gets better answers than 'What do you think?'
Value-first post
r/Entrepreneur, r/marketing, r/SEO, r/growthhacking"[N] things I learned [doing X] for [time period]"
- 01Hook with a surprising or counterintuitive result.
- 02Number each lesson; keep every one actionable.
- 03Back each lesson with a short story or data point.
- 04Mention your product once, inside a lesson — never as the point.
- 05Close by asking what others have seen.
Tip: If deleting the product mention ruins the post, it wasn't value-first.
Problem → solution
r/webdev, r/selfhosted, r/nocode, r/automation"I was frustrated with [problem], so I built [solution]"
- 01Describe the frustration until readers nod along.
- 02List the alternatives you tried and why they failed.
- 03Explain what you built and why it's different.
- 04Go into the technical approach — this crowd wants it.
- 05Share the roadmap and ask what's missing.
Tip: Spend more words on the problem than the solution.
Milestone post
r/microsaas, r/indiehackers, r/EntrepreneurRideAlong, r/juststart"Just hit [milestone] — here's the full breakdown"
- 01State the milestone plainly: $1K MRR, 1,000 users, first customer.
- 02Give the timeline and the phases it took.
- 03List 3–5 things that actually drove growth.
- 04Be honest about what didn't work — this is what makes it credible.
- 05Publish real numbers: traffic sources, conversion, costs.
Tip: The more transparent the numbers, the more engagement you get.
Example titles that get upvotes
The pattern: a specific number, a time frame, and a promise of transparency. They read like a story someone wants to hear, not an ad someone wants to skip.
Story-driven
- “I quit my job 6 months ago to build a SaaS. Here's my honest P&L.”
- “After 2 years of building in silence, I finally launched. Here's everything I'd do differently.”
Data-driven
- “I analyzed 500 landing pages. Here are the 7 patterns that convert above 5%.”
- “$0 to $2K MRR in 90 days — full traffic and revenue breakdown inside.”
Question-based
- “What's the one tool you wish existed for [specific workflow]?”
- “Am I crazy for charging $29/mo for this? Need honest pricing feedback.”
- “How are you handling [problem]? I tried 5 solutions and none worked.”
Milestone
- “Just got my first paying customer after 4 months. Here's what finally worked.”
- “Hit 10K users with zero ad spend. Here are the 3 channels that drove 90% of signups.”
- “Our open-source project hit 1K GitHub stars this week. Lessons from building in public.”
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