REAL PRODUCTS. PUBLIC SOURCES.

Explore revenue-backed businesses.

Public income figures, clear source context, and business case studies for independent founders.

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Real projects86

Source-linked business profiles

Revenue disclosures86

Original metric & reporting context

Open-source projects5

Public code, different business models

Repository signals3

GitHub snapshots, not growth claims

All projects 86 Public revenue Open source

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6 projects to explore

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#	Project	Category / model	Reported revenue	Evidence	GitHub ⓘ
01	Buffer One workspace for a recurring social publishing routine. Researched profile	MarketingFree + paid	≈ $27,300,000ARR · USDUndated public dashboard	Company disclosureChecked Oct 18, 2026	—
02	Buttondown An email newsletter service focused on the writing routine. Researched profile	PublishingFree + paid	> $1,000,000ARR · USDFounder interview published September 17, 2026; cutoff not specified	Founder first-person self-disclosure in published interviewChecked Oct 18, 2026	—
03	Cal.com Scheduling for individuals, teams, and embedded bookings. Researched profile	ProductivityFree + paid	> $10,000,000ARR · USDannual recurring revenue milestone	Company/team self-disclosure with quoted founder announcementChecked Oct 18, 2026	☆ 49,132
04	Carrd One-page websites with a deliberately small scope. Researched profile	DesignFree + paid	≈ $100,000MRR · USDHistorical founder interview, released February 2022	Founder direct transcript at 03:28Checked Oct 18, 2026	—
05	Kit Email marketing built around a creator business. Researched profile	MarketingFree + paid	≈ $887,000MRR · USDHistorical milestone: year-end 2017 (ConvertKit)	Founder-reported historical milestoneChecked Oct 18, 2026	—
06	Tally Build a form as naturally as writing a document. Researched profile	ProductivityFree + paid	≈ $6,000,000ARR · USDMilestone disclosed September 2026	Company disclosureChecked Oct 18, 2026	—

Figures are source disclosures, not audited by MRRTrace. Revenue is not profit. Revenue sorting uses the selected metric and currency (default: USD MRR); other metrics follow alphabetically. GitHub stars measure repository interest, not business success.