40 Micro SaaS Ideas You Can Build in a Weekend

"Micro SaaS" gets overused as a label. We mean it strictly: a product with a very tight scope (1–3 core features), a single specific buyer, and an ARR ceiling somewhere between $20K and $500K — the right size for a solo founder running it as a side or main project for years.

Micro SaaS works because it doesn't need to grow to support a team — so you can ship a v1 in a weekend, find 100 paying customers, and have a real business at $5K MRR. The math is different from chasing $10M ARR, and it's much less risky.

What makes an idea micro-SaaS-feasible?

• Tiny v1. One workflow, one input, one output. If you need to explain it with three diagrams, it's too big.
• Clear buyer with budget. Not a vague persona — a job title with a credit card and a problem.
• Compounding distribution. SEO, integrations, or community. Paid ads kill micro SaaS economics.
• Pricing that respects the work. $19/mo for something that saves 5 hours/month. Don't race to the bottom — niche tools can charge well.

12 micro SaaS ideas to open right now

Each of these fits the criteria — narrow scope, clear customer, defensible distribution. Open any for the execution plan and target audience.

Anti-patterns to avoid

1. The "just add AI" trap

Adding AI to an obvious workflow doesn't automatically create defensible value. Many "AI [obvious thing]" products will get eaten by the platforms themselves within 12 months. For micro SaaS, focus on niche workflows where the platform won't bother to build.

2. The vague horizontal play

"A better Notion alternative" — no. "A Notion-style tool specifically for property managers handling 10–50 units" — much better. Specificity is your wedge.

3. Underpricing

$5/mo micro SaaS is hard to make work. You need 1,000+ customers to clear $5K/mo, and $5 customers churn faster than $50 customers. If the product is worth more, charge more.

18 more micro SaaS ideas to browse

Same criteria, different verticals. Browse for whichever niche resonates.

How to ship in a weekend

Real timeline for a focused weekend:

• Friday evening: set up auth, payments, basic data model
• Saturday: build the one core workflow end-to-end
• Sunday morning: landing page + onboarding flow
• Sunday afternoon: ship, post on Indie Hackers + relevant subreddit, ask for first 5 paying customers

The trick is ruthless scope cutting. No settings page. No team accounts. No analytics dashboard. One workflow, executed well, sold to a specific person. Everything else is v2.

→ Browse all 334 SaaS startup ideas