Wafy – Whatsappify
Tried finding an app which does this. I had a use case of copying a phone number from my dialer and creating a wa.me URL to send a message in WhatsApp.
The other way was to send this number in a WhatsApp chat and then click on it to open the message window.
Both options were annoying in different ways – one was slow and the other cluttered the chat unnecessarily.
So, I thought of vibe-coding this simple, single-page utility app to make the process seamless.
🚀 Inspiration
Frustration with the current manual steps to start a WhatsApp chat with an unknown number.
I wanted a frictionless way to paste a number from my call log or clipboard and instantly message it on WhatsApp, without saving it to contacts or sending a dummy message.
💡 What it does
- Lets you paste or type any phone number
- Automatically formats and validates the number using the correct ISD code
- Generates a direct
https://wa.me/WhatsApp link - Lets you:
- Copy the link
- Click to open in a new tab
- Or directly jump into a WhatsApp chat via the Go button
- Supports custom default ISD code selection via a settings panel
- Light/Dark mode toggle
- Mobile-first responsive design
🛠️ How we built it
- Frontend: React with functional components and hooks
- Styling: TailwindCSS (with dark mode support)
- Phone Number Validation:
libphonenumber-js - Country ISD Data:
country-telephone-data - State Persistence:
localStoragefor theme and ISD preferences - Deployment: Bolt + Netlify
🧱 Challenges we ran into
- Handling various phone number formats (with/without
+, spaces, brackets, etc.) - Ensuring accurate ISD code mapping and validation across countries
- Making it mobile-friendly while keeping the interface minimal
- Persisting theme and settings reliably across sessions
🏆 Accomplishments that we're proud of
- Fully working utility with clean UX in a matter of minutes with one single prompt.
- Validated phone numbers with high accuracy
- Seamless one-click WhatsApp chat experience
- Zero external clutter – just the functionality you need
📚 What we learned
- How to use
libphonenumber-jsfor real-world phone number handling - Working with
localStorageand dropdowns dynamically - Designing a smooth light/dark mode toggle experience with Tailwind
- How small tools can create huge quality-of-life improvements
🔮 What's next for Wafy
- Add QR code generation for the wa.me link (helpful on desktop)
- Support number detection from clipboard automatically on load
- Provide browser extension for quicker access
- Add internationalization (i18n) for ISD selection UX
- PWA support to add to home screen like a native app
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