5 Ways to Discover Rising Micro-SaaS Products Before Everyone Else

Most people discover interesting SaaS tools when they're already popular.
Here's how to find them 3–6 months earlier.

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1. Watch "Show HN" Posts on Hacker News

Hacker News has a dedicated format for founder launches: Show HN: My Product.

The trick is to watch posts by score at the moment they're posted — not after they've climbed to the front page.

A Show HN with 50 upvotes in the first 2 hours is more interesting than one sitting at 200 upvotes after 48 hours. Early velocity matters.

What to look for:

• Score > 10 within the first hour
• Comments that include "how much does it cost?" or "do you have an API?"
• Founder is actively replying in the thread

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2. Monitor Freshly Registered Domain Names

Every day, thousands of new domains are registered. Services like WhoisDS publish the previous day's new .io, .ai, .app, and .tools registrations.

Parse these lists for patterns:

• Two-word compound domains (invoicecrafter, pdfmonkey, replytool)
• Developer-friendly TLDs: .sh, .run, .dev
• Avoid: hyphens, numbers, brand names, generic dictionary words

Once you find interesting domains, probe them with HTTP HEAD requests. Sites that return 200 OK on a fresh domain are worth a manual look.

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3. Reddit's "SideProject" and "SaaS" Subreddits

Founders announce products in Reddit threads all the time, often before Product Hunt.

The best subreddits:

• r/SideProject — raw, unfiltered launches
• r/SaaS — slightly more polished, monetization-focused
• r/InternetIsBeautiful — products that are visually interesting
• r/Entrepreneur — sometimes catches early-stage tools

Sort by new not hot. The gems are in the new queue within the first 6 hours.

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4. GitHub Trending + Homepage URLs

Not every tool gets announced on social media. Some developers just ship quietly.

GitHub Trending (github.com/trending) lists repos gaining stars fastest. Many repos have a homepage URL in their metadata — often the actual product.

Focus on:

• Repos trending with tool/CLI/SaaS in the description
• Repos where the homepage is a .io or .app domain (not .github.io)
• Language filters: TypeScript, Python, Go, Rust repos with a homepage

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5. Nitter RSS for #buildinpublic

Indie founders tweet obsessively with #buildinpublic. This hashtag is a real-time stream of micro-SaaS founders documenting their MRR milestones.

Use a Nitter instance (Twitter mirror) to subscribe to RSS feeds for:

• #buildinpublic
• #indiehackers
• #sideproject
• #makerlog

Filter tweets that include a URL + a dollar amount (regex: \$[\d,]+). These are usually "hit $X MRR" announcements.

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Putting It Together

Each of these signals catches different types of products at different stages:

| Signal | Stage | Effort | |---|---|---| | Domain registrations | Pre-launch | Medium (needs filtering) | | Show HN posts | Day 1 | Low | | Reddit r/SideProject | Day 1–7 | Low | | GitHub Trending | Week 1–4 | Low | | #buildinpublic tweets | Ongoing | Medium |

The real edge comes from correlating sources — a product that appears on all five in the same week is almost certainly worth watching.

That's exactly what MRRScout automates.

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Want This Automated?

That's why we built MRRScout. Every Monday, you get the week's most interesting rising SaaS products — curated from all five signals above, scored by growth momentum, sent straight to your inbox.

No need to spend your Sunday morning trawling Reddit and Hacker News.