r/SideProject Marketing (2026): Post Format + 4-Week Plan for Real Users

r/SideProject is one of the few subreddits where posting your own product is not just allowed, it is the entire point: 848K+ members (per the subreddit page, September 2026) join specifically to discover new tools and give founders feedback. But there is a real difference between the sub's self-promotion rules and getting real users from a post. For the rules themselves, the 10% guideline, and what gets removed, see our r/SideProject rules reference. This guide is the playbook: the exact post format, timing, and comment strategy that turn a project link into real users, feedback, and even paying customers, most founders drop a link, get 3 upvotes, and move on instead.

Most subreddits punish anything that looks like promotion. r/SideProject is the opposite. The entire point of the community is sharing what you have built. That changes the dynamic completely.

• Self-promotion is encouraged: Sharing your project is literally the purpose of the sub
• Builder audience: These are developers, designers, and founders who understand the grind
• Feedback culture: Members give real, useful feedback instead of generic comments
• Early adopter mindset: People here are willing to try unpolished products and give them a fair shot
• Cross-pollination: Many members are also active in r/startups, r/SaaS, r/entrepreneur, and r/indiehackers
• Fast-moving new queue: In our September 2026 snapshot the 100 newest posts spanned under 6 hours (roughly 17 new posts an hour), so the first hour decides whether your post climbs or sinks

The audience quality matters more than the size. 848K members who are pre-qualified (they opted into a subreddit about discovering projects) beats 5M members in a general subreddit where nobody wants to hear about your product.

We checked the live subreddit before updating this guide. The community describes itself as "a subreddit for sharing and receiving constructive feedback on side projects," and it has been running since January 2013. Here is what the rules and settings add up to:

• No custom rule list: r/SideProject publishes no subreddit-specific rules, so Reddit's sitewide Reddit Rules are what mods enforce. Rule 2 is the one that matters for founders: "Participate authentically in communities where you have a personal interest, and do not spam or engage in disruptive behaviors."
• Be the builder, say you are the builder: Reddit Rule 5 asks you to be authentic. Posting as a fake happy customer of your own product breaks it, even in a sub built for self-promotion.
• Sidebar title format: '[Project name] - [Short description]'. Only 6 of last month's top 100 used it exactly, so it is a guideline, not a filter. The most common opener was 'I built' or 'I made' (26 of 100).
• Image and gallery posts are disabled: You can post text, links, and native video. Put screenshots behind a link in a text post, or record a short video.
• No post flair: Flair is turned off, so your title has to do all the work of explaining what the project is.
• Not-AI thread: The mods pinned a 'Share your Not-AI projects' thread. If your project is not an AI wrapper, it is a second, less crowded place to share it.

Our r/SideProject reference page covers the self-promotion tolerance and what gets removed in more detail. This guide sticks to getting results once you are inside the rules.

We pulled the top 100 posts of the past month (September 2026) and a clear pattern emerges. Every one of them cleared 50 upvotes, and most follow a similar structure:

1. Title: Use the format the sidebar asks for: '[Project name] - [Short description]', like its own example 'Reddit - A website for sharing and discussing links.' Keep it under 100 characters. Be specific about what it does, not vague.
2. Opening paragraph: Explain why you built it. What problem were you personally facing? This is the hook that makes people care.
3. The journey: How long did it take? What tech stack? What was the hardest part? Builders love hearing about the process.
4. What it does: List 3-5 specific features. Do not say 'it does everything'. Be concrete. A short demo video helps massively here (image and gallery posts are turned off in this sub, video is not).
5. The ask: End with a specific question. 'What feature would make you use this every week?' gets better responses than 'What do you think?'

Example Title Formats That Work

• 'ToolName - a free tool that does X for Y people' (the sidebar's own format)
• 'After 6 months of building, here is my side project that helps freelancers track invoices'
• 'I built this because every existing solution was too expensive for solo founders'
• 'Show r/SideProject: ToolName - open source alternative to ExpensiveTool'

Example Title Formats That Fail

• 'Check out my new app' (too vague, nobody clicks)
• 'The best productivity tool ever made' (sounds like an ad)
• 'Please try my project' (begging does not work on Reddit)
• 'AI-powered revolutionary platform' (buzzword soup)

Advice is cheap, so we looked at what the community rewards. These numbers come from the top 100 r/SideProject posts of the past month, collected on September 22, 2026:

• Video wins the format battle: 61 were native videos, 35 were text posts, and only 4 were plain link posts.
• Everyone writes a real body: 93 of the 100 had more than 200 characters of body text. A bare link almost never makes the top list.
• Comments follow upvotes: The median post had 135 upvotes and 68 comments. The lowest post in the top 100 still had 54 upvotes.
• First person beats brand voice: 26 titles started with 'I built', 'I made', or 'I created'. Posts read like a builder talking, not a company announcing.
• AI is not the headline: Only 5 of the 100 titles mentioned AI. Lead with the problem you solve, not the model behind it.
• The new queue is brutal: The 100 newest posts at the same moment had a median score of 1. Most posts never leave the new queue, which is why the format and the first hour matter.

The takeaway: a 20 to 60 second demo video, a first-person title that names the problem, and a body that tells the build story. That combination shows up again and again at the top.

The body of your post is where you earn trust. Members on r/SideProject can smell a low-effort pitch from a mile away. Here is what the best posts include:

• Link to the live product: Not a waitlist, not a landing page with no product. The actual thing.
• A short demo video: Image and gallery posts are disabled on r/SideProject, but native video is allowed, and 61 of the top 100 posts last month were videos. A 15-second screen recording of the core feature is worth 500 words.
• Tech stack: Members genuinely want to know. 'Built with Next.js, Supabase, and deployed on Vercel' gets respect.
• What you learned: Share one honest lesson from building it. 'I wasted 3 weeks on a feature nobody uses' resonates more than 'everything went perfectly'.
• Roadmap: What is next? This signals you are serious and invites people to follow your progress.
• Pricing context: If it is free, say so. If it has a free tier, mention it. If it is paid, explain why the price is fair.

Timing matters even here. We counted when the top 100 posts of the past month were published (Eastern Time): Sunday produced the most winners (24), then Wednesday (16) and Tuesday (15), while Thursday produced the fewest (9). By hour, 34 of the 100 went up between 6 AM and noon ET. This counts winners, not every post, so treat it as a direction, not a law. It lines up with the Sat-Sun 9am-1pm ET window on our r/SideProject reference page.

• Best day: Sunday, with weekend mornings as the strongest overall window. Builders browse other people's projects when they are off work.
• Best times: 6 AM to noon ET. That catches Europe in the afternoon and the US East Coast in the morning.
• Weekday backup: Tuesday or Wednesday morning ET if you cannot post on a weekend.
• Avoid: Late evening ET. Only 18 of the top 100 were posted between 6 PM and midnight ET.
• Update posts: Progress updates follow the same pattern. A Sunday morning update gets the same weekend browsing crowd as a launch.

Not sure about timing for other subreddits? MediaFast shows you the best posting times for any subreddit based on real activity data.

Even on a promotion-friendly subreddit, certain approaches guarantee your post gets ignored or downvoted:

• Pure pitch with no story: 'Buy my SaaS tool' with no context. Members want to hear about the builder, not just the product.
• Just a link with no context: A URL and nothing else. This is the fastest way to get zero engagement.
• Ignoring comments: If someone takes the time to comment on your post and you do not reply, you lose that person forever. Engagement is a two-way street.
• Reposting the same thing weekly: The community notices. Space your posts at least 3-4 weeks apart, and bring something new each time.
• Fake humility: 'Just a little thing I threw together' when it clearly took months. People see through it.
• No demo at all: Text-only posts about a visual product feel lazy. Show your work with a short video or a live link.
• Deleting and reposting: If your post did not perform, do not delete and retry the next day. Improve the content and try again in a few weeks.

Your post gets you visibility. Your comments get you users. Here is how to maximize engagement after you hit publish:

1. Write the first comment yourself: As soon as you post, drop a top-level comment with additional context. 'Hey, founder here. Happy to answer any questions about the build or the tech.' This seeds the conversation.
2. Reply to every comment within 2 hours: Speed matters. The faster you reply, the more the algorithm boosts your post. A post with 15 comments ranks much higher than one with 3.
3. Ask follow-up questions: When someone gives feedback, do not just say 'thanks'. Ask 'Would you use that feature every week?' or 'What tool are you using for that right now?' This creates real conversations.
4. Be honest about limitations: If someone points out a flaw, own it. 'You are right, the onboarding is rough. Working on it.' This builds trust faster than defending every criticism.

The founders who get the most value from r/SideProject are not the ones who post once. They become regulars. Here is how to build a presence:

• Comment on other projects genuinely: Give real feedback on other people's launches. Not 'cool project!' but actual specific feedback. This builds your reputation.
• Share progress updates: Post milestone updates like 'Hit 100 users on my side project. Here is what I learned.' These perform extremely well.
• Celebrate others' wins: Upvote and comment on posts that resonate with you. The community remembers people who show up consistently.
• Ask for specific feedback at milestones: 'I am about to add pricing. Which model makes more sense for a tool like this?' gets thoughtful responses.
• Cross-post strategically: Share your r/SideProject post in r/startups, r/SaaS, or r/indiehackers a few days later with a different angle.

Where does r/SideProject fit compared to other communities where founders share their work?

• r/SideProject vs r/startups: r/startups is stricter, larger, and more competitive. Use r/SideProject to test your messaging first, then adapt for r/startups.
• r/SideProject vs r/entrepreneur: r/entrepreneur is broader (not just tech products). r/SideProject has a more technical audience that appreciates dev-focused details.
• r/SideProject vs r/indiehackers: Similar audiences but r/indiehackers leans more toward revenue discussions. r/SideProject is better for pure product feedback.
• r/SideProject vs r/SaaS: r/SaaS is specifically for software-as-a-service. If your side project is a SaaS tool, post in both.
• r/SideProject vs ProductHunt: ProductHunt is a one-shot launch event. r/SideProject lets you build an ongoing relationship with an audience over time.

The mods list related communities right in the sidebar. Subscriber counts below are from each subreddit's page in September 2026:

• r/startups (2.13M members): Bigger and stricter. Reuse your r/SideProject feedback to sharpen the pitch before posting here.
• r/Entrepreneur (5.28M members): Broad business audience. Lead with the lesson or the numbers, not the product.
• r/design_critiques: Useful when you want honest feedback on your landing page or UI before a bigger launch.
• r/webdev, r/gamedev, r/learnprogramming, r/coding: Technical communities. Share the build story, the stack, and the hard problem you solved.
• r/SaaS (811K members) and r/indiehackers (194K members): Not in the sidebar, but close fits for software projects that charge money.
• Places outside Reddit: The sidebar also links Places to Post Your Startup, a long public list of launch sites and directories, plus Hacker News, GitHub, and AngelList.

Figuring out which subreddits to post in and when can take hours of manual research. MediaFast shows you exactly which subreddits match your product, the best times to post, and what type of content performs best in each community.

Here is a realistic 4-week plan for getting the most out of r/SideProject without burning out or annoying the community:

1. Week 1: Lurk and comment. Spend 15 minutes a day giving feedback on other projects. Build familiarity with what works and what gets ignored.
2. Week 2: Publish your launch post. Use the format above. Reply to every comment within 2 hours. Share in 1-2 other relevant subs a few days later.
3. Week 3: Engage without posting. Keep commenting on other projects. Reply to any late comments on your launch post.
4. Week 4: Post a progress update. 'Two weeks after launching on r/SideProject. Here is what happened.' Share metrics, feedback you received, and what you changed.

Repeat this cycle monthly. Each round builds more credibility and brings more eyes to your project.

Getting upvotes feels good, but the real goal is users. Here is how to convert attention into action:

• Have a clear CTA in your post: Not pushy, but clear. 'If you want to try it, here is the link. First 50 users get the pro plan free for a month.'
• DM people who show strong interest: If someone says 'this is exactly what I need', send them a friendly DM with a direct link and offer to help them get started.
• Create a feedback loop: Ask beta users from r/SideProject to join a small Discord or feedback group. They are already invested in your success.
• Track where signups come from: Use UTM parameters on your links so you know exactly how many users came from r/SideProject vs other channels.
• Follow up on feature requests: If someone suggested a feature and you built it, tag them in your update post. This turns casual commenters into loyal users.

Run through this before you hit submit. It combines the sub's settings with what last month's top posts had in common:

• Your title names the project and what it does, ideally as '[Project name] - [Short description]' or a first-person 'I built X to solve Y'
• You have a 15 to 60 second demo video, or a text post with a live link (image and gallery posts will not work here)
• The body is more than a few lines: why you built it, the stack, one honest lesson, and what is next
• The link goes to a working product, not a waitlist or email gate
• You say plainly that you are the builder
• You end with one specific question for the community
• You are posting Sunday or a weekday morning ET, and you can reply to comments for the next 2 hours
• Your last post about this project was at least 3-4 weeks ago, and this one brings something new