{"id":"icloud.what-is-icloud-drive-on-a-mac","url":"/faq/icloud/what-is-icloud-drive-on-a-mac","category":{"id":"icloud","title":"iCloud & iCloud Photos"},"subcategory":{"id":"icloud-drive-basics","title":"iCloud Drive basics"},"question":"What is iCloud Drive on a Mac?","alt_questions":["How does iCloud Drive work on Mac?","What does iCloud Drive do?","icloud drive explained","Is iCloud Drive built into macOS?","Where is iCloud Drive in Finder?"],"short_answer":"iCloud Drive is Apple's built-in file sync service. It appears in Finder's sidebar, keeps your files in iCloud across your devices, and can store them on your Mac or as online-only files that download when opened.","answer_markdown":"iCloud Drive is Apple's file-storage service built into macOS. It keeps the files you put in it in iCloud and syncs them across your Mac, iPhone, iPad and iCloud.com. On a Mac it appears as **iCloud Drive** in Finder's sidebar.\n\nFiles in iCloud Drive can be downloaded (stored on your Mac) or online-only (stored in iCloud, downloaded when you open them). With **Optimize Mac Storage** on, macOS moves older files to online-only by itself when space runs low.\n\niCloud Drive is a sync service: deleting a file from it deletes it everywhere. It's not the same as a backup. Storage Studio works with iCloud Drive's folder on your Mac to make downloaded files online-only and to measure what iCloud uses. See [does Storage Studio work with iCloud Drive](/faq/icloud/does-storage-studio-work-with-icloud-drive).","answer_html":"

iCloud Drive is Apple's file-storage service built into macOS. It keeps the files you put in it in iCloud and syncs them across your Mac, iPhone, iPad and iCloud.com. On a Mac it appears as iCloud Drive in Finder's sidebar.

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Files in iCloud Drive can be downloaded (stored on your Mac) or online-only (stored in iCloud, downloaded when you open them). With Optimize Mac Storage on, macOS moves older files to online-only by itself when space runs low.

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iCloud Drive is a sync service: deleting a file from it deletes it everywhere. It's not the same as a backup. Storage Studio works with iCloud Drive's folder on your Mac to make downloaded files online-only and to measure what iCloud uses. See does Storage Studio work with iCloud Drive.

","answer_text":"iCloud Drive is Apple's file-storage service built into macOS. It keeps the files you put in it in iCloud and syncs them across your Mac, iPhone, iPad and iCloud.com. On a Mac it appears as iCloud Drive in Finder's sidebar.\n\nFiles in iCloud Drive can be downloaded (stored on your Mac) or online-only (stored in iCloud, downloaded when you open them). With Optimize Mac Storage on, macOS moves older files to online-only by itself when space runs low.\n\niCloud Drive is a sync service: deleting a file from it deletes it everywhere. It's not the same as a backup. Storage Studio works with iCloud Drive's folder on your Mac to make downloaded files online-only and to measure what iCloud uses. See does Storage Studio work with iCloud Drive.","tags":["icloud drive","basics","finder"],"related":[{"id":"icloud.is-icloud-drive-a-backup","question":"Is iCloud Drive a backup of my Mac?","url":"/faq/icloud/is-icloud-drive-a-backup"},{"id":"icloud.what-does-online-only-mean-for-icloud-files","question":"What does online-only mean for an iCloud Drive file?","url":"/faq/icloud/what-does-online-only-mean-for-icloud-files"}],"applies_to":"all","last_reviewed":"2026-10-01","title":"What is iCloud Drive on a Mac? — Storage Studio FAQ","description":"iCloud Drive is Apple's built-in file sync service. It appears in Finder's sidebar, keeps your files in iCloud across your devices, and can store them on your Mac or as online-only files that download when opened.","crumbs":[{"name":"Home","path":"/"},{"name":"FAQ","path":"/faq/"},{"name":"iCloud & iCloud Photos","path":"/faq/icloud/"},{"name":"What is iCloud Drive on a Mac?","path":"/faq/icloud/what-is-icloud-drive-on-a-mac"}],"jsonld":{"@context":"https://schema.org","@type":"FAQPage","url":"https://storagestudio.us/faq/icloud/what-is-icloud-drive-on-a-mac","inLanguage":"en","dateModified":"2026-10-01","mainEntity":[{"@type":"Question","name":"What is iCloud Drive on a Mac?","alternateName":["How does iCloud Drive work on Mac?","What does iCloud Drive do?","icloud drive explained","Is iCloud Drive built into macOS?","Where is iCloud Drive in Finder?"],"acceptedAnswer":{"@type":"Answer","text":"iCloud Drive is Apple's file-storage service built into macOS. It keeps the files you put in it in iCloud and syncs them across your Mac, iPhone, iPad and iCloud.com. On a Mac it appears as iCloud Drive in Finder's sidebar.\n\nFiles in iCloud Drive can be downloaded (stored on your Mac) or online-only (stored in iCloud, downloaded when you open them). With Optimize Mac Storage on, macOS moves older files to online-only by itself when space runs low.\n\niCloud Drive is a sync service: deleting a file from it deletes it everywhere. It's not the same as a backup. Storage Studio works with iCloud Drive's folder on your Mac to make downloaded files online-only and to measure what iCloud uses. See does Storage Studio work with iCloud Drive.","url":"https://storagestudio.us/faq/icloud/what-is-icloud-drive-on-a-mac"}}]},"fragment":"
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iCloud & iCloud Photos · iCloud Drive basics

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What is iCloud Drive on a Mac?

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Short answer: iCloud Drive is Apple's built-in file sync service. It appears in Finder's sidebar, keeps your files in iCloud across your devices, and can store them on your Mac or as online-only files that download when opened.

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iCloud Drive is Apple's file-storage service built into macOS. It keeps the files you put in it in iCloud and syncs them across your Mac, iPhone, iPad and iCloud.com. On a Mac it appears as iCloud Drive in Finder's sidebar.

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Files in iCloud Drive can be downloaded (stored on your Mac) or online-only (stored in iCloud, downloaded when you open them). With Optimize Mac Storage on, macOS moves older files to online-only by itself when space runs low.

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iCloud Drive is a sync service: deleting a file from it deletes it everywhere. It's not the same as a backup. Storage Studio works with iCloud Drive's folder on your Mac to make downloaded files online-only and to measure what iCloud uses. See does Storage Studio work with iCloud Drive.

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