Easy to copy. Won anyway.
Anyone could have built these. The moat was never the code — it was distribution, timing, or trust.
133 teardownsOne line of code, sold as instant ADA compliance.
clones
HIPAA compliance built for SMBs, not hospitals.
White-label client reports for marketing agencies.
Roadmap software. No VC, no sales team, $100M+ ARR.
Ugly-on-purpose wireframes designers keep paying for
PDF bank statements in, clean spreadsheets out.
a script anyone can copy
Subscription analytics run in public, sold for $4M.
Blogging stripped to words. No JS, no trackers.
The startup directory that charges you to skip its line.
directory = a weekend clone
Sell part of your SaaS — cash out, keep control.
buyer pool owned by rivals
DIY app builder for SMBs. Bootstrapped, sold $20M+.
Auto-pins your blog to Pinterest for free traffic
Turns dental practices into subscription businesses.
No-bloat newsletters. Flat price, 0% author cut.
Two ex-Facebook founders. One feedback tool. No funding.
A one-page site builder — 4M+ sites, nearly solo.
Custom AI support agents from your own docs.
Bootstrapped clinic software, built with an osteopath.
Photo-delivery galleries pros sell prints through
The marketing team realtors rent for $74 a month.
Every crypto trade is taxable. They rank #1 for it.
GDPR forced a banner. He already owned the audience.
SEO content tool that sold fast on Acquire.com
Chasing clients for files, bottled and sold monthly.
The cookie banner the law made you add.
banner is a commodity
The job board that rode the 2017 crypto gold rush.
Leads on startups that just raised, for agencies.
The spreadsheet-killer for property investors.
easy to clone
Spot a run-down house, mail its owner in one tap
China's paid-knowledge app of curated expert courses.
The CRM a painting contractor built for his own trade.
AI turns any product into a Shopify store in 2 minutes
The Ryanair of email marketing
The anti-overlay accessibility checker for WordPress.
Bootstrapped Carta rival, driven by the 409A rule.
School bullying app the law turned into B2B.
When EU law bans Google Analytics, you buy this instead
A cheaper Canny that ranks for "Canny alternative."
One-click lesson feedback for ESL teachers
Where photographers buy and sell presets.
A note app that wins by doing deliberately less.
a note app clones in a weekend
Social-proof popups, bought with the app's own cash.
Build the HACCP plan the law demands — in an hour.
crowded HACCP field
The whistleblower channel EU law forces firms to buy.
Where junior devs practice on real design files.
Guess your spot on Earth from Street View — paid only.
Sell any digital product from one storefront — flat 10%.
Gym software a black belt built to beat MindBody
One-man cron-job watchdog. Open-source. Profitable.
The docs tool MSPs flee IT Glue for.
free OSS clone exists
Thread scheduling for X, born from one tweet.
The software a gymnastics-gym owner built for himself.
Private multiplayer servers for survival gamers.
The CRM layer agents add to their agency system.
The operating system for allied-health clinics
Deadline software for accounting firms.
clones everywhere
One index for every niche job board on the web.
Built to run his own contracting firm. Now 7,500 use it.
AI LinkedIn writer sold to its founders' 585K fans.
50 failed pitches, then partners sold it for him.
The anti-Salesforce CRM for small business.
Worldbuilding wiki for Game Masters, born on Reddit.
Power-user budgeting, at a price you choose.
Pretty, half-price SEO data that out-charms giants
Monthly mentors, not one-off gigs — built solo in Japan
Monthly 1:1 mentorship from people who've done it.
Collaborative team inbox: email, chat, tasks in one
Bought a broken scraper for its traffic, not code.
AI support agent that plugs into Intercom or Zendesk
crowded; incumbents bundle it
Skiers pay for the one forecast they trust.
Owns the web's cookie banner, sells the paid platform.
Passive Instagram growth SaaS. Sold for $300K.
Self-taught solo dev out-SEO'd Hootsuite to $74K MRR
Run a coaching business from one $57/mo app.
crowded coaching-CRM niche
Open-source DocSend — share decks, track every view.
code is forkable, moat is SEO
Free French company data. The paying 1% funds it all.
Turns emails and PDFs into structured data, no code.
Chat with your PDFs - a $20K buy now doing $50K/mo.
Paid bookmarking, one guy, no VC — profit is the pitch.
Schedule one post to every platform, no bloat.
Google can't read JS sites. He hosted the fix.
A screen printer built the software his shop needed
Plan your whole financial life, no bank linking
The class-pass tool for studios Mindbody overwhelms.
The tool that tracks Congress's stock trades.
The accessibility widget the law makes you buy.
A 'poor man's Loom,' flipped for about 1.7x.
Dad's decades in staffing = day-one users.
Remote jobs board grown from a niche newsletter.
Fair-price Trustpilot rival, sold for $72M.
Turned the mandatory safety audit into an app.
Scheduling built for the guest, not the host.
Two devs SEO'd a scraping API to a $5M exit.
One dev sells the screenshot infra devs hate running
clones undercut 2-4x
Collect testimonials, show them off as social proof.
One bootstrapper's $10 answer to DocuSign.
The free accessibility checker that upsells compliance.
Google Analytics got banned in the EU. He sold the fix.
Airbnb for dogs: rent a private yard by the hour.
The social tool sold by hand before it was built
The browser countdown timer behind SpaceX shows.
A boring store-locator, built to be bought.
The CRM a wedding photographer built for himself.
AI scriptwriter for YouTube, pre-sold before it existed.
A free Slack for content marketers, monetized 4 ways.
The marketplace matching newsletters with brands.
platforms can build it native
The beautiful form builder that stays free.
Made a no-code tool buyable, then took a 7-figure exit.
A shop owner built the software he wished he had.
A privacy attorney's policies that update themselves
AI drafts one free
Collect testimonials, embed a Wall of Love.
Mass texting SaaS, now owned by its staff.
Why can't you text a business? They fixed that.
Bought a $250K side project. Grew it to $7M ARR.
Event ticketing at a flat fee, not a % of the sale.
Reservable truck parking on other people's lots.
3 SEO influencers rented out their group chat.
Open-source no-code chatbot builder, run solo.
The power-user UI ChatGPT forgot to build.
Gets clients to explain their mystery transactions.
The simple site builder that sold for $800K.
Onboarding SaaS. 3 people. $60M exit.
Screenshot and annotate bug reports for product teams.
crowded feedback niche
One line of code, 'instant' ADA compliance
PTO tracking built inside Slack, not bolted on.
One upload. Ten marketplaces. Zero retyping.
One snippet makes any site multilingual and SEO-ready.
crowded field
The whistleblower who built the whistleblowing app.
The email hack they built for themselves went public.
The indie-games job board built by a 20-year insider.
One dashboard to run every client's WordPress site.
easy to clone
A $29 Typeform rival that turns free forms into ads.
Cleans your email list so campaigns land, not bounce.