Founder stories
$100K ARRen 1 year
4 hitos
Last known revenue
Last public data 2021. CSS Scan is one-time purchase ($69); CSS Pro is subscription ($30/mo). No 2024-2025 figures disclosed.
21-Year-Old Self-Taught Brazilian Developer Makes $100K with CSS Extension
Founder
Guilherme Rizzo
Fundador en Solitario•Técnico•USA
Dedicación
Tiempo completoExperiencia
Primera vezProducto
Browser extension to inspect and copy CSS.
Tipo
Extensión de ChromeIndustria
Herramientas para DesarrolladoresModelo
FreemiumEstrategia de marketing
Cómo Guilherme consiguió clientes
Canal de crecimiento
Product Hunt
Tech Stack
Herramientas usadas para construir CSS Scan
JavaScriptChrome Extension APIStripe
La historia completa
I'm from Brazil and built CSS Scan because I always wanted to know what border-radius, box-shadow, or font-family an element I see has.
Fast Progress
It took me 9 months to get the first $10,000 and just 9 more months to get an additional $60,000.
Organic Growth
I didn't spend money on paid ads - I let my product's effectiveness do the work. 7,000+ people from 116 different countries use my extension.
- First $10K: 9 months
- Next $60K: 9 months
- Users: 7,000+ from 116 countries
Conclusiones clave
1
Solve your own problem - I built the tool I wanted to use
2
You don't need paid ads if the product is genuinely useful
3
Product Hunt can be a great initial launch platform
4
Self-taught developers can compete with anyone
Publicado originalmente enIndie Hackers
¿Inspirado por el camino de Guilherme? Genera una idea de negocio en el sector Herramientas para Desarrolladores usando AI y datos reales de founders.
Milestone Journey
Guilherme alcanzó 4 milestones en el camino hacia $100K ARR
Primer Cliente
$5
7 days
March 2019
93% más rápido
vs promedio 4 months+3 months al próximo milestone
$1K MRR
$1,000
3 months
June 2019
74% más rápido
vs promedio 11 months+9 months al próximo milestone
$10K MRR
$70,000
1 year
January 2020
45% más rápido
vs promedio 1 year+6 months al próximo milestone
$100K ARR
$100,000
1 year
September 2020
53% más rápido
vs promedio 3 years1 year
Tiempo total del recorrido
4
Milestones alcanzados
El camino de Guilherme hacia $100K ARRPremium
El recorrido, las decisiones y el contexto detrás de este hito
Desbloquea el Camino Completo de Guilherme
Ve el análisis completo: estrategia de lanzamiento, métodos de validación, costos iniciales, análisis de expertos, replication playbook y más insights accionables.
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Frequently asked questions
How much does CSS Scan make?
The last known public figure for CSS Scan is $4K MRR as of March 2021. Last public data 2021. CSS Scan is one-time purchase ($69); CSS Pro is subscription ($30/mo). No 2024-2025 figures disclosed. Source: Indie Hackers.
How long did it take CSS Scan to reach $100k arr?
Guilherme Rizzo took 1 year to reach $100k arr with CSS Scan.
Was Guilherme Rizzo a solo founder?
Yes. Guilherme Rizzo built CSS Scan as a solo founder.
What marketing channel did CSS Scan use to grow?
CSS Scan grew primarily through Product Hunt.
What industry is CSS Scan in?
CSS Scan operates in Herramientas para Desarrolladores.
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