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HoloTab

What it is

HoloTab is an AI browser companion developed by HCompany. It is designed to assist users with web-based tasks and navigation.

What problem it solves

It addresses the need for a more integrated and proactive AI assistant within the browser, helping users find information, summarize content, and automate simple browser tasks.

Where it fits in the stack

AI & Knowledge / Browser Companion. It sits at the interface between the user, the browser, and the web.

Typical use cases

  • Assisted Browsing: Getting context or summaries of websites as you visit them.
  • Task Automation: Helping with simple, repetitive web tasks.
  • Information Retrieval: Quickly finding relevant information across multiple open tabs or history.

Strengths

  • Proactive Assistance: Designed to assist as you browse rather than just responding to prompts.
  • Integrated Experience: Aims for a seamless fit within the browser workflow.

Limitations

  • New Tool: As a relatively new entry, its feature set and stability may be evolving.
  • Platform Dependency: Likely requires a browser extension or specific browser.

When to use it

  • If you are looking for an AI companion that is tightly integrated with your browsing experience.
  • When you want an alternative to standard search engines or standalone chat interfaces.

When not to use it

  • If you have strict privacy requirements and are wary of an AI observing your browsing activity.
  • For highly specialized technical tasks that require a more dedicated development environment.

Getting started

HoloTab is currently available as a browser extension (Chrome, Edge).

  1. Install the Extension: Download HoloTab from the Chrome Web Store.
  2. Authenticate: Log in with your HCompany account to sync your preferences and history.
  3. Activate: Click the HoloTab icon or use the shortcut Alt + H to open the sidebar.
  4. Prompt: Ask the assistant to help with your current page.

Usage Example

You can use HoloTab to process web content directly in your browser:

# Example Prompt in the HoloTab sidebar
"Summarize the key arguments in this article and find all contact emails mentioned."

API examples

While primarily a browser tool, HoloTab can be interacted with via browser-level automation or custom shortcuts:

// Example: Programmatically opening the HoloTab sidebar (conceptual)
window.postMessage({ type: "HOLOTAB_TOGGLE_SIDEBAR" }, "*");

// Example: Sending a snippet to HoloTab for processing
const selection = window.getSelection().toString();
chrome.runtime.sendMessage("holotab-extension-id", {
  action: "PROCESS_SELECTION",
  text: selection
});

Sources / References

Contribution Metadata

  • Last reviewed: 2026-05-28
  • Confidence: high