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OneTab vs Overlay2

Professional comparison and analysis to help you choose the right software solution for your needs.

OneTab icon
OneTab
Overlay2 icon
Overlay2

OneTab vs Overlay2: The Verdict

⚡ Summary:

OneTab: OneTab is a free browser extension for Chrome, Firefox, Edge, and Opera that helps you save up to 95% memory by converting all of your open tabs into a list. You can easily restore the tabs later.

Overlay2: Overlay2 is a storage driver for Docker that leverages the layering filesystem of UnionFS to enable image layers and containers to share files efficiently. It improves upon the older Overlay driver with enhanced performance and stability.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature OneTab Overlay2
Sugggest Score — —
Category Productivity Os & Utilities

Product Overview

OneTab
OneTab

Description: OneTab is a free browser extension for Chrome, Firefox, Edge, and Opera that helps you save up to 95% memory by converting all of your open tabs into a list. You can easily restore the tabs later.

Type: software

Overlay2
Overlay2

Description: Overlay2 is a storage driver for Docker that leverages the layering filesystem of UnionFS to enable image layers and containers to share files efficiently. It improves upon the older Overlay driver with enhanced performance and stability.

Type: software

Key Features Comparison

OneTab
OneTab Features
  • Converts all open browser tabs into a list
  • Saves up to 95% of memory used by tabs
  • Lets you easily restore tabs later
  • Works on Chrome, Firefox, Edge and Opera browsers
Overlay2
Overlay2 Features
  • Union file system for layering Docker images
  • Efficient sharing of files between containers
  • Improved performance over older Overlay driver
  • More stable than previous storage drivers
  • Built-in garbage collection

Pros & Cons Analysis

OneTab
OneTab

Pros

  • Saves memory and improves browser performance
  • Easy to restore tabs for later use
  • Simple and lightweight extension
  • Works across major browsers

Cons

  • May not save tab state like scroll position
  • Need to re-open tabs to interact with them
  • Could lose tabs if not restored properly
Overlay2
Overlay2

Pros

  • Faster start up of containers
  • Lower storage space usage
  • Better disk I/O performance
  • More stable overlay mount
  • Easier cleanup of unused image layers

Cons

  • Increased memory usage
  • More complexity than other storage drivers
  • Not compatible with some filesystems like Btrfs
  • Still in experimental phase, not production-ready yet

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Learn More About Each Product

OneTab
OneTab
Reviews, pricing & alternatives →
Overlay2
Overlay2
Reviews, pricing & alternatives →

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