Founder stories
$100K ARRen 1 year
4 jalons
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
Fondateur
Guilherme Rizzo
Fondateur Solo•Technique•USA
Engagement
Temps pleinExpérience
Première foisProduit
Browser extension to inspect and copy CSS.
Type
Extension ChromeSecteur
Outils DéveloppeurModèle
FreemiumStratégie marketing
Comment Guilherme a acquis ses clients
Canal de croissance
Product Hunt
Tech Stack
Outils utilisés pour construire CSS Scan
JavaScriptChrome Extension APIStripe
L'histoire complète
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
Points clés à retenir
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
Publié à l'origine surIndie Hackers
Inspiré par le parcours de Guilherme ? Générez une idée de business dans le secteur Outils Développeur grâce à l'AI et aux données de vrais fondateurs.
Parcours des jalons
Guilherme a atteint 4 jalons sur le chemin vers $100K ARR
Premier Client
$5
7 days
March 2019
93% plus rapide
vs moy. 4 months+3 months jusqu'au prochain jalon
$1K MRR
$1,000
3 months
June 2019
74% plus rapide
vs moy. 11 months+9 months jusqu'au prochain jalon
$10K MRR
$70,000
1 year
January 2020
45% plus rapide
vs moy. 1 year+6 months jusqu'au prochain jalon
$100K ARR
$100,000
1 year
September 2020
53% plus rapide
vs moy. 3 years1 year
Durée totale du parcours
4
Jalons atteints
Le parcours de Guilherme vers $100K ARRPremium
Le chemin, les décisions et le contexte derrière cette étape clé
Débloquez le parcours complet de Guilherme
Découvrez l'analyse complète : stratégie de lancement, méthodes de validation, coûts de démarrage, expert analysis, replication playbook, et bien d'autres insights actionnables.
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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 Outils Développeur.
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