Solopreneur business ideas with real revenue
Companies a single founder built and, in many cases, still runs alone. The lesson is rarely the software — it is the distribution or the audience that made a one-person business work. Each with the number and where it came from.
40 real companies · every number links to the page that reports it · corrections published
- 1
he hiked the fee and cut to zero staff — a shrinking company that's wildly profitable.
Creator uploads a product, gets a checkout link → Buyer purchases; Gumroad runs checkout, payment, and delivery → Gumroad keeps 10% + $0.50 on your own links, and 30% on sales it sends you via Discover
The catch GMV plateaued · flat fee invites churn
Read the full teardown → - 2
the lookup is free — the real moat is 18 yrs of crawl history nobody can back-fill.
Crawl about 492M domains, log each site's full tech stack → Publish free public profile pages → rank in Google → free inbound → Sell bulk lead lists + trend data to sales teams, $295-995/mo
The catch Lookup is free · lead-gen cut first
Read the full teardown → - 3
Every Ruby shop runs the free version; upgrading to paid Pro is one config line — every scaling shop is a lead already.
Free OSS Sidekiq becomes the Ruby default → Scaling shops need Pro/Enterprise features → They pay $995/yr Pro or $269+/mo Enterprise
The catch Tied to Ruby's fate; one-person bus factor.
Read the full teardown → - 4
Ubiquiti gives the controller software away free. HostiFi sells the part MSPs hate: servers, updates, backups, 2am.
MSP installs Ubiquiti gear across client sites → HostiFi spins up a private controller in minutes → MSP pays $19-249/mo per server, on renewal
The catch The vendor now hosts it from $29/mo
Read the full teardown → - 5
Open-sourced the code — 24k day-one visitors, free marketing — then sold the hosted version nobody wants to run.
A JavaScript site is invisible to Google's crawler → Add one line; Prerender serves crawlers static HTML → Pay per render, monthly — profitable from day one
The catch Thin margins; SSR frameworks erase the need.
Read the full teardown → - 6
She was the customer — a broke agent selling the exact Instagram templates that got her out of bartending.
Realtor drowning in daily social-media pressure → Joins for $74/mo: templates, calendar, community → Monthly dues compound across thousands of agents
The catch Templates rivals can copy in a weekend.
Read the full teardown → - 7
Owns the data source and the sending inboxes, so cold email costs him almost nothing to run at scale.
Site adds the tracking script → Anonymous visitors matched to named buyers → Sales pays monthly for the pipeline
The catch Built on a third-party data source he rents
Read the full teardown → - 8
A lone security researcher scrapes the award data airlines hide, and rents it back at $9.99/mo.
Bots scrape live award-seat availability from 20+ airline programs → Aggregate into one fast, searchable database with alerts → Travelers pay $9.99/mo Pro to search a full year of availability
The catch Airlines can block or sue the data feed.
Read the full teardown → - 9
One-click Shopify install puts the survey inside checkout; a third of signups arrive free from the app store.
Shopify store installs Zigpoll from the app store (one click) → Store runs post-purchase and exit surveys; answers tie to customer records → Store upgrades to a paid tier ($29-194/mo), recurring revenue
The catch One platform: most signups come via Shopify.
Read the full teardown → - 10
Sells hosting to people who never searched for hosting. They searched 'how to upload a PDF'.
Anyone drags a PDF, HTML or ZIP into a box and gets a live link free → The free link carries a Tiiny banner, a 3 MB cap and 5,000 visits a month → Custom domain, password, analytics and API unlock at $5-74/mo
The catch Every signup arrives via a Google ranking.
Read the full teardown → - 11
A search-retrieval PhD out-SEO'd job giants by owning one query nobody fought for: '4 day week jobs'.
Own the '4-day-week jobs' search (programmatic SEO) → Convert visitors into a newsletter: about 500K lifetime signups, about 100K active → Sell that list: newsletter ads + affiliate + upsells
The catch Leans on one trend and Google's goodwill.
Read the full teardown → - 12
Runs 100% in your browser tab — near-zero server cost turns 6-cent ad-hours into 90%+ margin at global scale.
Free in-browser Photoshop loads, no signup → Users' own devices do the editing — near-$0 cost to him → Ads bill about 6c per user-hour, about $100K/mo
The catch Bus factor 1; ad rates set his income.
Read the full teardown → - 13
The free 2M-user extension crowdsources a live tech dataset rivals must crawl for — data as a byproduct.
Free extension detects tech as its 2.5M+ users browse → Those signals plus in-house crawlers build a live tech dataset → Sells lead lists and lookups to sales teams, $250-850+/mo
The catch Closing the OSS core spawned free forks.
Read the full teardown → - 14
Rivals reply from your account. Leadmore posts from its own aged pool — a ban hits Leadmore, not you.
Build a 300-person Reddit community before coding → Ship: post via managed high-karma accounts, track leads → Charge per post — 10+ paid in week one
The catch Reddit can ban the managed pool at once
Read the full teardown → - 15
too simple to misuse — a $19/yr one-page tool run solo, with a viral 'Made with Carrd' footer.
Anyone builds a free one-page site in minutes → Every free site shows a 'Made with Carrd' badge → new signups → Pay $9-$49/yr to remove badge, add custom domain, forms, analytics
The catch Trivial to clone · low switching cost
Read the full teardown → - 16
Bought a site already page-one for one game ($1,600/mo), then launched a host for every new title.
Rent dedicated servers wholesale (Hetzner, Servers.com) → One control panel auto-provisions a private server per game → Gamers pay monthly to rent a private world
The catch Commodity; churns as each game's hype fades.
Read the full teardown → - 17
Undercuts Hootsuite on price, wins Google with 'alternative' pages and free tools. Bootstrapped, no ads, no funding.
Free tools + 'alternative' pages pull search traffic → Visitors sign up free, then hit posting limits → Upgrade to $15-$199/mo plans
The catch Crowded commodity category; social API risk
Read the full teardown → - 18
Ranks #1 for 'Poshmark bot,' a buying-intent keyword rivals ignored, so customer acquisition is free organic search.
Reseller Googles 'Poshmark bot,' lands on Resellbot → 14-day trial, connects their Poshmark closet → Pays flat $30/mo; bot auto-shares 24/7
The catch Automates platforms that ban automation.
Read the full teardown → - 19
He aimed at studios Mindbody overcharges: radical simplicity, a fair price, and a decade of calm profitable focus.
Small studio, tired of Mindbody, signs up → Runs classes, passes & bookings inside Punchpass → Pays about $59/mo — every month it operates
The catch Crowded market of low-LTV small studios.
Read the full teardown → - 20
A boring API for a repetitive marketing task, repriced from $9 hobbyist tiers to $49-299 business plans.
Dev or Zap calls the API → Bannerbear renders the image → Monthly plan bills $49-299
The catch Easy to clone; the moat is distribution.
Read the full teardown → - 21
Blessed by Laravel's creator, it's the default upgrader — with 175k+ upgrades of edge-case data no rival can match.
Laravel releases a new major version → Dev connects a repo; Shift auto-writes the upgrade PR → Dev pays $9-39 per Shift, or subscribes (Shifty plans from $99/yr)
The catch One framework's calendar sets the revenue.
Read the full teardown → - 22
Anyone can build a PDF parser. He ranked #1 for 'convert HSBC statement to Excel' — where accountants search.
Accountant googles 'PDF bank statement to Excel' → Uploads a statement, gets clean CSV in seconds → Subscribes for page credits — $30-99/mo or $599/yr (2023 interview; site shows no public prices) (2023 interview; site shows no public prices) (2023 interview; site shows no public prices) (2023 interview; site shows no public prices) (2023 interview; site shows no public prices) (2023 interview; site shows no public prices) (2023 interview; site shows no public prices) (2023 interview; site shows no public prices) (2023 interview; site shows no public prices) (2023 interview; site shows no public prices)
The catch ⚠ Entry low
Read the full teardown →
a script anyone can copy - 23
He hand-posted to five platforms daily to grow his own app — then sold the automation of that exact chore.
Creator manually cross-posts to 5+ platforms every day → Connects accounts to Post Bridge, schedules once, auto-publishes → Pays $29-$99/mo subscription to keep publishing
The catch Thin layer over social APIs he can't own.
Read the full teardown → - 24
One search box over 10,000+ subreddits — founders validate ideas in minutes, not weeks of scrolling.
Index 10,000+ subreddits via Reddit's API → Founders search for pain points and customers → Pay $29-199/mo, plus day passes and lifetime deals
The catch Control low
Read the full teardown →
lived and died on Reddit's API - 25
Ex-Twitter engineer built for people exactly like her, in public — budgeting nerds trust one of their own.
Power user, done with Mint/YNAB, signs up free → 160+ currencies, manual control and an API lock them in → They choose an annual price ($60-150) and pay
The catch Solo founder is the whole company.
Read the full teardown → - 26
Beat rotting incumbents by doing less: nail deliverability, let writers own their list, take 0% of revenue.
Writer outgrows TinyLetter / Mailchimp / Substack bloat → Imports list to Buttondown, keeps full data ownership → Free for the first 100 subscribers, then paid as the list grows; add-ons from +$9/mo — 0% revenue cut
The catch Flat price caps upside; low switching costs.
Read the full teardown → - 27
Free community is the funnel; revenue is a lead-gen tool plus an accelerator he coaches himself.
Free Slack community pulls in aspiring solo consultants → Free guides plus his LinkedIn reach build trust → They pay for the lead-gen tool and coached accelerator
The catch Near breakeven; his hours are the product
Read the full teardown → - 28
Wrapped ChatGPT's clunky default with the search, folders and bring-your-own-key its power users asked for.
OpenAI opens the ChatGPT API to everyone → Power users want folders, search, own-key access → They buy a $39 license + subs for the better UI
The catch A wrapper OpenAI could absorb overnight.
Read the full teardown → - 29
Habit lock-in: daily streaks, badges and monthly writing challenges keep members returning for years.
Write 750 words a day, free to start → Streaks, badges and monthly challenges build the habit → Members pay $5-10/mo to keep writing
The catch One founder, one flat niche; growth is hard.
Read the full teardown → - 30
One designer-engineer runs the whole app on about $50/mo of infra, so a $4/mo price still clears 80-90% margins.
Creator needs one link for their bio → Builds a custom page in minutes → Pays $4-10/mo to keep it live
The catch Linktree could kill the $4 tier for free.
Read the full teardown → - 31
SEO owns the demand. Mentees arrive from Google, so MentorCruise — not the mentor — sets the take.
Expert lists a monthly mentorship plan ($50-$1,000) → Mentee subscribes; MentorCruise adds about 20% on top → Platform keeps about 17% take, mentor gets the rest
The catch Entry: free rivals
Read the full teardown → - 32
Airtable can't pull live API data itself. Data Fetcher is the no-code fix, sitting right in Airtable's app store.
Install from Airtable's app marketplace (free) → Wire up API imports; hit the free-plan limits → Upgrade to a paid monthly plan — $23K MRR
The catch Its whole market lives inside Airtable.
Read the full teardown → - 33
He never sells the visa info - it's free bait that ranks on Google. The money is the traveler's next purchase.
Traveler googles 'do I need a visa for X' -> lands on Visa List, free → Picks passport + destination; sees rules + trip add-ons → Affiliate cut + Pro + ads -> about $22K/mo at 90% margin, solo
The catch A Google update can halve everything.
Read the full teardown → - 34
Charging from day one keeps it solo and profitable, so 'we won't sell you out or vanish' is a promise he can keep.
New user pays $22-39/yr before using it → Their bookmark archive grows — switching cost climbs → Renewals minus about $17K cost = high-margin solo profit
The catch Tiny shrinking market, one-man bus factor.
Read the full teardown → - 35
Owns the self-hosting crowd's trust — open-source, no VC, no lock-in — the anti-Vercel a VC clone can't copy.
Dev quits job, ships a free self-host PaaS (2021) → Coolify grows via community trust to 58k stars → Charges for managed Cloud + sponsors: $15.7K/mo
The catch Just 5 people handle code, support, security.
Read the full teardown → - 36
Connect a blog once and AI writes and pins forever — rivals like Tailwind still make you build each pin by hand.
Blogger links a content feed (WordPress, Etsy, YouTube, Medium) → AI generates titles, images and unique pins, then posts to Pinterest daily → Pinterest returns free traffic; blogger pays $25-125/mo to keep it running
The catch 10-15% monthly churn — a leaky bucket
Read the full teardown → - 37
Sold the ongoing relationship, not one-off gigs: mentors charge monthly for unlimited questions, so revenue recurs.
Learner picks a mentor's monthly plan, from ¥3,000 ($28) → Unlimited chat all month; MENTA escrows the payment → MENTA takes about 20% from the mentor plus 10% from the learner
The catch Cloneable software; the moat is his audience
Read the full teardown → - 38
The raw data was free in filings — he does the tedious global hand-filtering nobody else will.
Buys pricey global stock datasets → Hand-screens to a top 40-50 shortlist → Sells it as a yearly members' club
The catch ⚠ Scale capped
Read the full teardown →
one man, one SEO funnel - 39
Rivals hand you a prompt or a crowd. 52Frames fuses a weekly ritual with a 13K-member feedback loop.
Free weekly photo challenge + streaks → A decade builds 13K loyal members → Patron tiers, now $199 and $360 a year (was $130-260)
The catch ⚠ Bus factor of 1
Read the full teardown →
solo, weekly, forever - 40
Built in public on Twitter for two months before launch, so the audience giving feedback became the first 75 customers.
You write your pages in Notion → Potion renders and hosts them on your domain → You pay $12-60/mo by site count
The catch A thin layer on Notion's own API.
Read the full teardown →
This list is a slice of Kaeda's library. Every figure is filed, stated by the company, or our estimate with the arithmetic shown — and when a source turns out not to say what we said, we change the number and publish the correction.