SaaS Ideas: The Playbook to Build What People Actually Want
Everyone says 'build something people want.' Here is the exact data-driven playbook to find them.
Too Long; Didn't Read
- Stop brainstorming and start mining complaints. The best SaaS ideas come from reading what people hate on G2, Capterra, and Reddit.
- For B2B: Filter 1-star reviews on major tools to find missing features (like integrations) that businesses will pay for.
- For Automation: Search Upwork for 'recurring' or 'weekly' tasks—if they pay a human to do it manually, they'll pay software to automate it.
- Validate before code: Look for 30+ people with the same specific complaint. Speed is key—launch a simple MVP to these exact complainers.
The 'Anti-Brainstorming' Approach to SaaS Ideas
Ready to Launch?
Once you have your idea, don't launch in silence. Get your first users fast.
Launch Your App1. Mine B2B SaaS Ideas from G2 & Capterra Reviews
1. Filter reviews by 1-2 stars (the angriest users).
2. Use 'Ctrl+F' to search for high-intent keywords: 'doesn't have', 'wish it could', 'missing', 'integration', or 'clunky'.
3. Look for the 'Unbundling' opportunity: a specific feature that the big giant does poorly, which you can do perfectly.
2. Find B2C Micro SaaS Ideas on Reddit
r/mildlyinfuriating (daily annoyances) or r/entrepreneur (business friction). Use advanced search operators to cut through the noise: try searching site:reddit.com "I would pay for" or site:reddit.com "is there a tool that".3. Uncover Automation Opportunities on Upwork
Idea Source Comparison Matrix
| Source | Target Audience | Signal Quality | Competition |
|---|---|---|---|
| G2 / Capterra | B2B / Enterprise | High (Verified Buyers) | Medium |
| B2C / Prosumer | High (Raw Emotion) | High | |
| Upwork | Business Owners | Very High (Already Paying) | Low |
| App Store | Mobile Users | Medium (Feature Requests) | High |
4. The Validation Formula: Do They Actually Care?
- Frequency: Can you find 30+ unique people complaining about this exact issue in the last 6 months?
- Willingness: Are they currently paying for a suboptimal solution (like a VA, a clunky expensive tool, or burning billable hours)?
- Flaw: Is the existing solution fundamentally broken for their specific use case, or just slightly annoying?
Speed is Everything: Build and Launch Fast
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- • Ideas are pre-validated by real market demand, removing the 'zero to one' guesswork.
- • Lower risk of building something nobody wants (The #1 cause of startup failure).
- • Clear marketing copy (use the customers' own complaint words on your landing page).
- • Higher chance of finding 'willing to pay' customers immediately since they are already searching for a fix.
Cons
- • Requires tedious manual research and reading hundreds of comments.
- • You might find problems that are technically hard to solve or rely on closed APIs.
- • Competitors may spot the same public complaints if they are diligent.
Pro Tip
Sort Reddit threads by 'Comments', not 'Upvotes'. High comments mean heated debate and real pain.
Use Google search operators like `site:reddit.com 'how do I' [niche]` to find immediate struggles.
When reading G2 reviews, look for the phrase 'wish it could'. That is a feature request written by a paying customer.
Don't ignore boring industries. A PDF-to-Excel converter for accountants is often more profitable than a trendy social app.
Frequently Asked Questions
How do I validate my SaaS idea without coding?
What are the best micro SaaS ideas for beginners?
How much does it cost to launch a SaaS?
How do I market a B2B SaaS with no budget?
Is AI killing traditional SaaS ideas?
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