ideaFast

Find real customer pain points from Reddit, without reading a thousand threads yourself.

Here's the thing nobody tells first-time founders. "Build something people want" is good advice that helps you exactly zero percent when you're staring at a blank page, wondering what to build.

Reddit already has the answer. People go there to complain. They write out, in their own words, what's frustrating them, what they've tried, and what they'd pay to make go away. The problem is finding it. Reading it. Knowing which gripe is a one-off and which one shows up over and over.

That's the whole job IdeaFast does for you.

You point it at Reddit. It reads the communities where your audience hangs out, finds the genuine complaints (not the wins, not the self-promo), and groups them by the actual problem people are describing. Each problem gets a score from 0 to 100 so you know how much it stings. And every single one comes with the real quotes and a link straight to the thread, so you can read it yourself and decide. When someone says they'd pay to fix it, you'll see that too.

Two ways to run it:

• Focused. You already know your subreddits? Point it at them and go deep.
• Broad. Not sure where to look? Give it a topic and it finds about 20 relevant communities for you.

It also reaches into Hacker News and the wider web, so you catch the same pain showing up outside Reddit too. Then, for any problem you like, it writes up startup ideas worth building, with the business model and the risks laid out honestly.

What I cared about most while building it: it doesn't skip evidence. A lot of tools skim post titles and quietly drop half of what they find. IdeaFast pulls real sentences out of the comments, keeps the receipts, and groups by the problem instead of scattering it across five subreddits. You see the whole shape of a pain, not fragments.

If you'd rather validate than gamble six months of your life, this is for you.