1Lookup Extension

Detect emails and phone numbers on any page, dedupe them, and export CSV in one click.

Detect email addresses and phone numbers on any webpage, automatically. 1Lookup Extension continuously scans the current page (including iframes) and keeps a deduplicated list of contacts, so you don’t waste time copying the same value multiple times. What you can do ● Auto-detect emails & phones from page text plus mailto: / tel: links and common phone-like attributes ● No duplicates (unique values only) ● Per-page collection (clears when you navigate to a new page) ● One-click CSV export (emails only, phones only, or both) to use in Excel / Google Sheets / your CRM Why install it If you do lead research, recruiting, sourcing, directory scraping (manual), or operations work, this saves time by turning any webpage into a clean, exportable list of contacts in seconds. Privacy: The extension extracts contact-like text from the pages you visit and stores results locally (per tab) so they’re available in the popup for exporting.