Coldbase

Track cold emails in Gmail. Privacy-first: all data stored locally, never sent to external servers. No sign-up required.

COLDBASE: NEVER FORGET A COLD EMAIL AGAIN Coldbase helps you remember every cold email pitch you receive in Gmail — who contacted you, when, and how you responded. Built for founders, CEOs, and investors who get dozens of cold emails daily. ✓ 100% LOCAL — Your data never leaves your device ✓ NO SIGN-UP — Works immediately after install ✓ PRIVACY-FIRST — No external APIs, no tracking, no data collection ✓ FREE FOREVER — Core features always free ═══════════════════════════════ WHAT COLDBASE DOES: • Automatically detects cold emails in your inbox • Creates a searchable database of all cold outreach • Tracks your responses (replied, ignored, interested) • Smart categorization by sender, date, and action • Quick access via keyboard shortcut (Ctrl+Shift+B) • Clean, minimal dashboard interface ═══════════════════════════════ WHY COLDBASE? If you're a founder or executive, you get cold emails constantly: - Partnership offers - Investment pitches - Sales outreach - Collaboration requests Most get lost in your inbox. Coldbase ensures you never miss an opportunity because you forgot who reached out. ═══════════════════════════════ PRIVACY GUARANTEE: Unlike other email tools, Coldbase: • Never sends data to external servers • Never tracks your behavior • Never sells or shares your information • Processes everything locally in your browser • Works offline Your email content stays on YOUR device. Period. ═══════════════════════════════ HOW IT WORKS: 1. Install Coldbase 2. Open Gmail 3. Coldbase automatically detects cold emails 4. View your cold email dashboard anytime with Ctrl+Shift+B 5. Search, filter, and track your responses No account creation. No configuration. Just install and go. ═══════════════════════════════ FEATURES: FREE (Forever): • Unlimited cold email tracking • Search and filter • Response tracking • Email hashing for privacy • Dashboard view • Keyboard shortcuts PREMIUM (Coming July 2026): • Advanced analytics • Bulk actions • Custom categories • Export data • Priority support ═══════════════════════════════ PART OF PROMAIL SUITE: Coldbase works great alone, but it's even better with: • Commit — Track email commitments and thread costs • Surely — Reduce email hesitation All ProMail tools are privacy-first and work 100% locally. ═══════════════════════════════ TECHNICAL DETAILS: • Manifest V3 compliant • No external network requests • Content Security Policy enforced • Open to security audits • Minimal permissions required • Service worker architecture ═══════════════════════════════ PERMISSIONS EXPLAINED: • storage: Save tracked emails locally • tabs: Open dashboard • notifications: Optional reminders • alarms: Scheduled tasks • mail.google.com: Read Gmail content (locally only) ═══════════════════════════════ WHO'S IT FOR? ✓ Founders receiving partnership pitches ✓ CEOs managing investor outreach ✓ VCs tracking startup deal flow ✓ Executives with high cold email volume ✓ Anyone who wants email control ═══════════════════════════════ SUPPORT: Email: support@promailco.com Instagram: @promailhq X/Twitter: @promailco Built with ❄️ for professionals who value privacy.