Email Radar – Extract Emails for leads and jobs

About

Email Radar instantly extracts every email address from any webpage — LinkedIn profiles, job postings, company directories, forums, and more. All processing happens 100% locally on your device. Zero data is ever sent anywhere.

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🔍 WHAT IT DOES
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Click the Email Radar icon on any page and a clean side panel slides in showing every email address found. It works silently in the background as you scroll — new emails appear in real time without any manual action.

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⚡ KEY FEATURES
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✅ Real-Time Detection
Emails are detected the moment they appear on the page — no waiting, no page refresh. Works on dynamically loaded content (React, Vue, infinite scroll).

✅ Auto-Scan Mode
Toggle Auto and Email Radar automatically watches for new content as you scroll. Every lazy-loaded section, feed update, and DOM change is scanned instantly.

✅ Context Snippets
Each email shows the surrounding text so you immediately know who it belongs to and where on the page it was found.

✅ One-Click Export
• Copy All — copies every email to clipboard (one per line)
• Download TXT — plain text file with all emails
• Download CSV — spreadsheet with columns: Email Address, Raw Match, Context, Extracted At (Excel-ready with UTF-8 BOM)

✅ Smart Deduplication
Each unique email appears only once, regardless of how many times it appears on the page.

✅ Works Everywhere
LinkedIn profiles, job boards, company About pages, team directories, forums, university sites, government portals — any page with text.

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🔒 100% PRIVATE — ZERO DATA SHARED
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Email Radar makes absolutely zero network requests. It never phones home, never logs anything, and never stores anything on disk. All extracted emails exist only in your browser's memory for as long as the panel is open. Close the panel and everything is gone.

No account required. No sign-up. No analytics. No ads.

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🚀 PERFECT FOR
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• Sales & Lead Generation — collect contact emails from company pages and directories in seconds
• Recruiters — find hiring manager and HR emails from job posts and LinkedIn
• Job Seekers — grab recruiter emails directly from job listings
• Researchers — extract email contacts from academic pages, government sites, and directories
• Journalists — find press contact emails quickly
• Marketers — build email lists from public web pages

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🛠️ HOW TO USE
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1. Install Email Radar
2. Navigate to any webpage that may contain emails
3. Click the Email Radar icon in your Chrome toolbar
4. The side panel opens — emails found are listed instantly
5. Scroll the page — new emails appear automatically with Auto mode on
6. Click Scan Page for a full manual scan at any time
7. Export with Copy All, TXT, or CSV

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⚙️ PERMISSIONS EXPLAINED
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• activeTab — required to read the text content of the current tab
• scripting — required to inject the extraction engine on demand
• Access to all sites — required so the extension works on any website you visit

No storage permission. No identity permission. No cookies.

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📋 TECHNICAL NOTES
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• Built on Manifest V3 (the latest Chrome extension standard)
• Uses native TreeWalker for fast, memory-efficient DOM scanning
• MutationObserver with 500ms debounce for real-time page updates
• WeakSet node tracking — each text node scanned exactly once
• Pure vanilla JavaScript — zero dependencies, zero libraries
• Does not work on chrome:// pages, browser settings, or PDF files (browser restriction)