What is Dex by Thirdlayer?
Dex is a Chrome extension that converts the browser into an AI workspace, centralizing tasks, notes, and context across tabs and apps. It integrates with Google Calendar, Gmail, Google Sheets, and LinkedIn to schedule meetings, prepare meeting briefs, and extract contact data.
Dex saves and organizes quick notes into searchable, context-aware memory for reliable retrieval and next-step suggestions. Users can scrape LinkedIn profiles, export lead lists to Google Sheets, and send personalized mass emails via Gmail using sheet data.
The extension operates across open tabs to reduce context switching for research, CRM, operations, and GTM workflows. Targeted at knowledge workers, hiring managers, sales and operations teams, it supports lead generation, meeting prep, data analysis, and email personalization.
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Dex by Thirdlayer's key features
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Integrates with 14+ apps and acts across browser tabs to operate within your web workflow
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Predicts and executes next steps by surfacing tasks proactively
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Persistent memory that learns from interactions and stores preferences and context
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Extracts and exports data (e.g., scrape LinkedIn) to Google Sheets for list building and analysis
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Automates communications and scheduling (personalized Gmail sends, schedule meetings using calendar availability)
Dex by Thirdlayer use cases
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Prepare concise, automated meeting briefs using Dex by pulling attendee info from Calendar and Gmail, extracting LinkedIn profiles and relevant open-tab context to surface bios, past emails and action items so you can enter meetings fully prepared
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Extract and enrich leads at scale with Dex's profile data extractor and cross-tab context manager, auto-populate Sheets with contact details and notes, then generate spreadsheet-driven, personalized outreach sequences to increase response rates
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Centralize notes, tasks and contextual memory across tabs and apps in Dex's browser AI workspace, create context-aware summaries and follow-ups tied to specific clients or projects, and sync tasks and draft emails with Gmail and Calendar for seamless execution
Who is it for?
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Sales professionals
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Recruiters
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Project managers
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Researchers
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Knowledge workers
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Business analysts
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Marketers
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Busy professionals who manage meetings and outreach
