EmailSpy - Find public emails across domains, even the sneaky ones

EmailSpy scrapes multiple sources to uncover publicly available emails for any domain. It even catches those tricky [at] symbols. Uses hybrid Firecrawl and Puppeteer approach. Try it, then clone and customize this low-code, open-source tool for free.

🚨 Important: This is a fronend of the app. The real magic happens in n8n workflow. You can find more information about it here.

⚠️ Note: EmailSpy is my very first project in Next.js (I'm not a professional frontend developer) and it's been made 90% with AI. I'm sure there are many things that could be improved. For any suggestions, I'll be very grateful.

How to use

0. Set up n8n workflow

You can find instructions here.

1. Clone the repository

git clone https://github.com/workfloows/emailspy-ui.git

2. Install dependencies

npm install

3. Set up environment variables

Replace N8N_INSTANCE_URL in .env with your n8n instance URL.

N8N_INSTANCE_URL=https://your-n8n-instance.com

If developing locally, set N8N_INSTANCE_URL to local address of n8n (e.g. http://0.0.0.0:5678).

3. Change callback URLs

If developing locally, change callback URLs in app/actions.ts to match your local address.

const callbackUrl = `http://localhost:3000/api/email-results/${callbackId}`

const response = await fetch(`http://localhost:3000/api/email-results/${callbackId}`)

If deploying to Vercel, leave both callback URLs unchanged.

4. Run the development server

npm run dev

Deploy to Vercel

a) Deploy preview

vercel

b) Deploy production

vercel --prod