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📰 Dev.to · gia ly bui

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How to Build a WHOIS Lookup Tool for Free in 5 Minutes

Dev.to · gia ly bui 📣 Digital Marketing & Growth ⚡ AI Lesson 2mo ago

How to Build a WHOIS Lookup Tool for Free in 5 Minutes

Ever needed to check who owns a domain? Here's how to build one using a free API — no registration,...

I Built 21 Free APIs in 3 Months — Here's What I Learned

Dev.to · gia ly bui 🔧 Backend Engineering ⚡ AI Lesson 2mo ago

I Built 21 Free APIs in 3 Months — Here's What I Learned

I'm a self-taught developer from China. Three months ago I had zero passive income. Today I have 21...

5 Free Generator APIs Every Indie Hacker Needs

Dev.to · gia ly bui 📣 Digital Marketing & Growth ⚡ AI Lesson 2mo ago

5 Free Generator APIs Every Indie Hacker Needs

QR Code Generator — PNG or base64, customizable size UUID Generator — v1 and v4, batch up to...

I Built a Free Email Validator API — SMTP Handshake Explained

Dev.to · gia ly bui 🔧 Backend Engineering ⚡ AI Lesson 2mo ago

I Built a Free Email Validator API — SMTP Handshake Explained

Sending to invalid emails kills deliverability. Most validators cost $20-50/month. Built my own....

Why I Switched from Google Places API to a Free Alternative

Dev.to · gia ly bui 📣 Digital Marketing & Growth ⚡ AI Lesson 2mo ago

Why I Switched from Google Places API to a Free Alternative

I was building a local business directory and needed location data. Google Places API pricing added...