Capsomnia

Capsomnia turns Caps Lock into a physical keep-awake switch for closed-lid MacBook background work. Run Codex, Claude Code, SSH sessions, builds, and unattended scripts without sleep.

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Overview

Capsomnia turns Caps Lock into a physical keep-awake switch for closed-lid MacBook background work. Run Codex, Claude Code, SSH sessions, builds, and unattended scripts without sleep.

AI summary

Capsomnia is a utility tool designed for MacBook users that allows the Caps Lock key to function as a physical switch to prevent the device from sleeping when the lid is closed. This enables users to run background tasks such as AI code execution, SSH sessions, and downloads without interruption.

Who Is It For

Best for

MacBook users who need to keep their device awake for long-running tasks while the lid is closed.

–Not for

Users who require a free plan or trial, or those who do not use macOS.

Strengths & Weaknesses

Biggest strength

Capsomnia's unique use of the Caps Lock key as a physical keep-awake switch provides a straightforward solution for maintaining MacBook functionality during closed-lid operation.

Biggest weakness

The lack of visible pricing information and absence of a free trial may limit accessibility for some users. (AI-inferred; may be outdated – founders can correct this)

Classification

Alternatives to Capsomnia

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Community

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How we sourced this: Observed fields () were crawled from https://capsomnia.com/ and are stated as fact. AI-inferred fields () were generated by gpt-4o-mini and are always labelled – never presented as measured fact. Last updated: 26 July 2026. Is this your tool? Claim it to edit and get a do-follow badge.