Automation

Dex by Thirdlayer

AI browser extension for tab organization, workflow automation, and task management.

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Verdict

A quick read before you dig into the full page.

Best if
You are knowledge workers and need: Schedule meetings in seconds across multiple calendars
Pick this when
AI browser extension for tab organization, workflow automation, and task management

Overview

Dex is a browser extension that transforms Chrome into an AI command center and a 'second brain'. It proactively organizes tabs, automates workflows, and handles tasks across various applications. Dex acts as a single AI workspace that understands your tasks, context, and how to advance your work. It connects with over 14 apps to eliminate context switching, predicts and executes your next steps, and offers frictionless AI note-taking and retrieval. Dex learns from every interaction to better assist users with their preferences and context.

Dex by Thirdlayer screenshot

Best for

Short scenarios where Dex by Thirdlayer tends to shine.

  • Schedule meetings in seconds across multiple calendars.

    Best for Knowledge workers

  • Build lead lists by scraping LinkedIn profiles and exporting to Google Sheets.

    Best for Professionals

  • Send personalized mass networking emails via Gmail using data from Google Sheets.

    Best for Researchers

  • Prepare for meetings by summarizing calendar, LinkedIn profiles, and email threads into talking points.

    Best for Communicators

Example outputs 1

Sample generations and before/after results for Dex by Thirdlayer.

Access & connections

Where you can use Dex by Thirdlayer, and what it plugs into.

Platforms

Integrations

Capabilities

What this tool accepts, produces, and is strongest at.

Highlights

  • Proactive tab organization
  • Workflow automation across apps
  • Cross-tab task management
  • AI-powered context awareness
  • Intelligent note-taking and retrieval
  • Predictive assistance and execution
  • Integration with 14+ applications

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FAQ 7

What is Dex?
Dex is a browser extension that transforms Chrome into an AI command center and a 'second brain'. It proactively organizes tabs, automates workflows, and handles tasks across various applications. Dex acts as a single AI workspace that understands your tasks, context, and how to advance your work. It connects with over 14 apps to eliminate context switching, predicts and executes your next steps, and offers frictionless AI note-taking and retrieval. Dex learns from every interaction to better assist users with their preferences and context.
How to use Dex?
Users interact with Dex by giving it commands or allowing it to proactively manage tasks and workflows across browser tabs and integrated applications. For example, users can command Dex to schedule meetings, build lead lists by scraping LinkedIn profiles, send personalized mass emails, or prepare for meetings by summarizing calendar events, LinkedIn profiles, and email threads.
Is Dex Free?
Dex offers a free plan to get started, with Pro, Business, and Enterprise plans available for advanced features and higher usage.
Who is Dex for?
Dex is designed for knowledge workers, professionals, and anyone who spends significant time in their browser doing research, communication, and task management.
How does Dex differ from Dia, Comet, or OpenAI's new agent?
Dex is purpose-built for the browser as a Chrome extension, focusing on seamless integration with your existing workflow rather than being a standalone application.
Where does Dex work? / What Platforms is Dex available on?
Dex is available as a Chrome extension and works on any platform that supports Chrome, including Windows, macOS, and Linux.
What's the difference between ThirdLayer and Dex?
ThirdLayer is the company behind Dex. Dex is our flagship product - an AI-powered browser companion that turns Chrome into your intelligent workspace.
Dex by Thirdlayer