Feed/What to Build

What to Build in 2026: 47 Data-Backed Market Gaps

Not sure what to build? These are real unsolved problems people are screaming about right now. Ranked by urgency, buyer intent, and momentum. Updated live from 7 sources, 24/7.

Signals Collected
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Active Gaps
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High Buyer Intent
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Sources Live
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The bottleneck has shifted

AI makes building software trivial. The hard part is no longer how to build, it's what to build. Most founders build something nobody wants because they started with an idea instead of a problem.

GapFeed flips the process. We scan the internet 24/7, find what people are actually struggling with, cluster related pain into market gaps, and validate whether existing solutions are actually solving the problem. Every gap you see here is backed by real complaints from real people.

How GapFeed finds what to build

Six specialized agents work around the clock. Alex Chen scans 7 sources in parallel: Reddit (100+ subreddits), Hacker News, Stack Overflow, Dev.to, YouTube, GitHub Issues, and Google News. Jack Morgan does the same through a stealth browser for sources that block APIs. Maya Patel classifies each signal by urgency, buyer intent, and sentiment, then clusters related signals into gaps with real competitor intelligence. Sam Zhang monitors system health and alerts on failures. Luna Hart manages social presence and trend scouting. Jamie Rivera synthesizes analytical briefs on demand.

Every gap shows: how many people are frustrated, whether they'd pay for a solution, how bad the problem is, and whether existing competitors are actually solving it. The heat score combines all these signals into a single number.

What makes a gap worth building for?

A gap is worth building for when three things are true: (1) multiple people are actively complaining, (2) they'd pay for a solution, and (3) existing competitors aren't solving it well. GapFeed scores each gap on these three dimensions. The top gaps below have all three.

Gaps by category

Browse by what people are struggling with.

Fintech8 gaps SaaS12 gaps DevTools9 gaps Marketing7 gaps Productivity6 gaps HealthTech3 gaps

Get in touch

Questions, feedback, or partnership inquiries: hello@gapfeed.com

Frequently asked questions

What should I build in 2026?
The best products to build in 2026 solve real problems people are actively complaining about. GapFeed scans Reddit, Hacker News, Stack Overflow, Dev.to, YouTube, GitHub, and Google News 24/7 to find unsolved problems ranked by urgency. The top gaps right now include Shopify payment reconciliation, AI tool subscription management, async standup tools for distributed teams, and social media ROI tracking for agencies.
How do you find market gaps?
GapFeed uses 6 specialized AI agents to scan 7 data sources continuously. Alex Chen and Jack Morgan collect pain signals from Reddit, Hacker News, Stack Overflow, Dev.to, YouTube, GitHub, and Google News. Maya Patel classifies each signal by urgency, buyer intent, and sentiment, then clusters related signals into market gaps with real competitor intelligence.
What makes a good startup idea?
A good startup idea solves a problem that multiple people are actively frustrated with, where existing solutions are inadequate. GapFeed scores each gap by signal volume, buyer intent, sentiment, and competitor quality. The highest-scoring gaps have high signal volume, frustrated users willing to pay, and weak existing competitors.
Is GapFeed free?
Yes. GapFeed is completely free. No login, no paywall, no pricing tiers. Every gap, every signal, every analysis is publicly accessible.
How often is GapFeed updated?
GapFeed collects new signals every few minutes, 24/7, from 7 sources. The gap classification and clustering runs continuously as new signals arrive. The data you see is always live, reflecting real-time market sentiment.