# How to Vibe Code Your Own Bitly (and Stop Paying for It)

> Short URLs, QR Codes, and More

- Site: https://bitly.com
- Category: Marketing & Developer Tools
- Platforms: Web app, Browser extension, Mobile app
- Verdict: **Solid side project** (75/100 vibecodeable)
- Estimated effort: 2-3 weeks of focused development

## Verdict

Build a personal subset with a link shortener, basic QR codes, and click counter; keep paying Bitly if you need automated custom domain SSL and global edge scale.

A personal clone focusing on URL shortening, basic analytics counters, and QR generation is entirely achievable as a solid side project. However, replicating Bitly's production grade involves complex infrastructural challenges such as automated wildcard SSL provisioning for user custom domains, global low-latency redirect routing at edge scale, and automated anti-phishing threat detection.

### What you can't replicate

- The premium short domain brand power of bit.ly
- Enterprise-grade global 99.99% uptime edge routing
- Extensive third-party marketplace integrations and enterprise compliance certifications

## What it does

Connections Platform offering URL shortening, dynamic QR codes, link-in-bio landing pages, and interaction analytics.

### Core features

- URL shortening with custom back-halves and 301/302 redirects
- Dynamic QR code generation with color and pattern customization
- Link-in-bio mobile landing page builder
- Click and scan analytics tracking device type, referrer, and country
- UTM parameter campaign builder
- Browser extension for quick link generation

## The business

### Pricing

- Free: $0/mo
- Core: $10/mo
- Growth: $29/mo
- Premium: $199/mo
- Enterprise: Custom

### Funding

$94M raised.
- Seed (2008)
- Series A ($2M, 2009)
- Debt ($1.5M, 2010)
- Series B ($10M, 2010)
- Series C ($15M, 2012)
- Private Equity / Series D (Spectrum Equity, 2017)
Investors: Spectrum Equity, Betaworks, Founders Fund, SV Angel, RRE Ventures, Khosla Ventures

Founded 2008.
Team size: 200-350.

## The hard parts

- Global low-latency redirect infrastructure handling millions of concurrent requests
- Automated wildcard or on-demand custom domain SSL certificate provisioning
- High-throughput click ingestion and time-series analytics aggregation
- Real-time abuse detection and phishing/malware blacklist filtering

## How to vibe code Bitly

### Prerequisites

- Node.js (free): Runtime environment for building and executing the full-stack web application.
- GitHub (free): Source code control and deployment pipeline integration.

### Recommended AI tools

- Claude Code: Autonomous terminal coding agent capable of scaffolding multi-file features and handling bug fixes end-to-end.
- Cursor: AI-native code editor for iterative UI styling and fine-grained React component adjustments.

### Stack

- Frontend: Next.js
- Backend: Next.js API Routes / Server Actions
- Database: Neon
- Auth: better-auth
- Payments: None
- Other: Tailwind CSS, Lucide React, QRCode.js

### Hosting

- Vercel (Hosting the Next.js frontend, API routes, and edge redirect middleware.): $0-20/mo
- Neon (Serverless Postgres database for storing links, clicks, and analytics.): $0/mo

### Build guide

1. **Project Scaffolding & Database Schema** — Initialize the Next.js project with Tailwind CSS and configure the Neon Postgres database schema using Drizzle ORM or Prisma.

```
Create a new Next.js 16 project using TypeScript, App Router, and Tailwind CSS. Configure Drizzle ORM to connect with Neon Postgres. Define the database schema with three tables: users, links (id, original_url, short_code, custom_back_half, user_id, created_at, clicks_count), and clicks (id, link_id, ip_address, user_agent, referrer, country, timestamp). Ensure proper foreign key constraints, indexes on short_code for high-speed lookups, and set up a basic layout with sidebar navigation.
```

2. **Authentication Setup** — Implement authentication using better-auth to manage user sessions and protect dashboard routes.

```
Integrate better-auth into the Next.js application supporting email/password and GitHub OAuth sign-in. Create the necessary auth API routes and database tables. Add protected dashboard routes for authenticated users to view and manage their shortened links, and ensure unauthenticated users are redirected appropriately.
```

3. **URL Shortener Core & Redirect Engine** — Build the core link shortening logic, custom back-half validation, and high-performance redirect middleware.

```
Implement the URL shortening engine. Create an API endpoint /api/shorten that accepts an original URL and an optional custom back-half. Generate a secure random 6-character short code if no custom back-half is provided. Build a Next.js middleware or dynamic route handler at /[code] that performs an instant lookup in Neon Postgres, logs the click event asynchronously (storing UA, referrer, and IP), and executes a 301 HTTP redirect to the original destination URL. Handle missing or expired codes with a clean 404 page.
```

4. **Analytics Dashboard & Event Tracking** — Develop the analytics view to visualize click counts, geographic distributions, and referral sources over time.

```
Build a comprehensive analytics dashboard page for each shortened link. Query the clicks table to display total click counts, activity over time charts (using Recharts), geographic country breakdowns, and referrer sources. Ensure queries are efficient and optimized with proper database indexes.
```

5. **QR Code Generator Module** — Add dynamic QR code generation capabilities with color customization and image export options.

```
Create a QR code generator feature using a React QR library. Allow users to enter a destination URL or select one of their existing short links, customize dot colors, add foreground elements, and preview the QR code in real-time. Provide download functionality for PNG and SVG formats.
```

6. **Link-in-Bio Landing Page Builder** — Implement a simple mobile-friendly landing page creator where users can curate and display multiple links.

```
Build a Link-in-Bio page builder allowing users to create custom mobile-friendly landing pages. Users should be able to add a profile picture, title, bio, and multiple ordered link buttons pointing to external URLs or their short links. Create a public public page route /bio/[username] to render these landing pages cleanly on mobile and desktop viewports.
```

### Cost vs paying

**Starting costs (one-time):**

- Custom Domain (optional): $12/yr
- Total: ~$12 one-time

**Ongoing costs (monthly):**

- Vercel Hobby & Neon Free Tier: $0/mo
- Total: $0/mo

- Paying for the SaaS instead: $29/mo (Growth Plan)
- Build time: 25-35 hours
- AI tool credits: $20 (Claude Pro / Cursor Pro)
- Break-even: Free vs Paid depends on need for custom SSL automation and edge speed.

## Sources

- [Bitly Official Website & Feature Pages](https://bitly.com)
- [Tracxn: Bitly Company Profile & Funding History](https://tracxn.com/d/companies/bitly)
- [GetLatka: Bitly Revenue & Growth Tracking](https://getlatka.com/companies/bitly)
- [Wikipedia: Bitly Overview](https://en.wikipedia.org/wiki/Bitly)