How do founders actually validate SaaS ideas before building?
Founders on Reddit's r/SaaS shared their real methods for testing whether a SaaS idea is worth building. The thread focuses on checking demand before spending time or money on development.
A common theme in the discussion is that building first and hoping people show up is a costly mistake. The most popular approach is creating a simple landing page — a one-page website describing the product — and counting how many visitors sign up with their email. If nobody signs up, the idea likely has no demand.
Other validated methods include talking directly to potential customers through short interviews on Reddit or Facebook groups, running small paid ads ($10–50) to measure click-through rates, and offering pre-sales or free beta access to see if people will commit. The overall lesson from the thread: real demand is proven by an email address, a payment, or a genuine conversation — not by assumptions.
Key points
- Build a landing page first and count email sign-ups to gauge real interest
- Interview 5–10 potential customers to confirm the problem actually exists
- Run a small ad ($10–50) and measure click-through rate as a demand signal
- Offer pre-sales or a waitlist to test willingness to pay before building
- Post in online communities (Reddit, Facebook groups) and watch the reaction
Quick term guide
- r/SaaS
- A Reddit community where people discuss software subscription businesses.
- share
- A server folder made available to apps or other devices.
- testing
- The process of checking that software does what it's supposed to do, usually by running it and looking for errors.
- build
- A chosen set of in-game abilities or items a player equips for their character.
- landing page
- The first page a visitor sees after clicking an ad, link, or campaign message.
- click-through rate
- The percentage of people who click a link or ad after seeing it — a measure of interest
- pre-sales
- Tickets sold before a movie officially opens.
- commit
- A saved set of code changes in a project’s history.