Lists of micro SaaS ideas are everywhere. Google autocomplete offered about forty variants of the phrase when we checked on 3 Oct 2026. What's rare is a way to tell which ideas have people waiting for them. That's this post.
The four signals that test micro SaaS ideas
New to the term? What micro SaaS means is the short primer. Every idea that lives in the browser can be checked with public data that anyone can open, as long as you're willing to spend an hour reading instead of an evening dreaming. Date each one.
| Signal | What to look at | Passes when |
|---|---|---|
| Supply | Listings that serve the same job | Some exist, but not hundreds of clones |
| Audience | Users on the top three | At least one has 10,000+ |
| Pain | Lifetime rating and recent reviews | Repeated, specific complaints |
| Payment | Rivals' own pricing pages | Someone already charges |
Fail two signals and move on. Fail one? Dig. Pass all four and you've earned a prototype.
What our crawl says about audience
Here's why the audience signal matters. Across 61,820 Chrome Web Store extensions observed on 3 Oct 2026, the median listing had 857 users.
Only 7,967, about 13%, had 10,000 or more. Users are the store's rounded buckets, and our crawl covers about 21% of store sitemap IDs, so treat this as a large sample.
The payment signal trips people up
This is the step idea lists usually skip, probably because it's the only one that needs you to leave the store and click around a stranger's website for a while. A listing almost never shows prices, so it's tempting to assume the category is all free.
Our own early detector made that mistake. Reading store text and manifests, it flagged 572 of 61,820 extensions as paid, under 1%. It missed tools that plainly sell plans on their own websites.
Run the check on one idea
Take "a tool that cleans pasted spreadsheet data".
- SupplySearch the store; count listings that do the job.
- AudienceNote the top three's user buckets.
- PainRead the twenty newest reviews of each.
- PaymentOpen each publisher's site and look for plans.
That's an hour. Maybe less. An hour can save a quarter.
Where to find ideas worth checking
- Categories with many big listings rated under 3.8. Our 2026 list starts there.
- Tools you pay for and resent.
- Jobs you do weekly with copy and paste.
Developers can start with micro SaaS ideas for developers.
We're biased, since Ext Watch automates the first three signals. The fourth needs a pricing-page check, and we're building that crawl now.
You'll still find plenty of idea lists. You'll just have a way to cross most of them off.
Questions people ask
What is a micro SaaS?
A small software business, often run by one or two people, that serves a narrow audience with a paid subscription.
How do you find micro SaaS ideas?
Look where people already use software daily and complain. Store listings and their reviews are a free place to start.
How do you know if a micro SaaS idea has demand?
Check that leaders in the niche have real users, that users are unhappy somewhere, and that someone already charges.
Where these numbers come from
- chromewebstore.google.comChrome Web StoreAccessed 3 Oct 2026
Part of our guide: What Is Micro SaaS? A Plain Guide With Real Examples. More in Extension ideas.
138 extensions tracked in Email finders. See them all.
Real demand, weak competition, with the numbers behind each one. Updated 3 Oct 2026 from our Chrome Web Store crawl
