A Smart Folder is a saved search that looks and behaves like a folder. Nothing moves, nothing is copied, and nothing is duplicated — the folder simply shows every file currently matching a set of rules, and updates itself the moment a new file qualifies.
It has been built into Finder for years, costs nothing, and is easy to overlook because it looks like an ordinary search until you save it.
Create your first Smart Folder
- In the Finder, choose File → New Smart Folder. A blank search window opens.
- Click This Mac to search everywhere, or the folder name to restrict the search to one location.
- Click the + button under the search field to add a rule.
- Set the rule from the dropdowns — for example Kind is PDF.
- Add more rules with +. Rules combine with AND by default, so each one narrows the result further.
- Click Save, give it a name, and tick Add To Sidebar so it is one click away.
If you keep the default save location, Finder stores Smart Folders in ~/Library/Saved Searches. You can choose another location when you save. The Smart Folder stores the search itself, not copies of the matching files, so it takes up very little space.
The search rules worth learning
The default criteria list is short. Choose Other… at the bottom of the first dropdown to expose many more searchable attributes, including several that are genuinely useful:
- Kind — document, image, movie, PDF, application, folder.
- Last opened date — the best way to find things you are actually working on, as opposed to things that merely exist.
- File size — the fast route to reclaiming disk space.
- Name — matches part of a filename.
- Tags — combines Finder tags with everything else.
- File extension — more precise than Kind when you want .heic but not .jpg.
- Contents — searches inside documents, not just filenames.
Hold Option and the + button becomes …, which adds a nested group so you can build any of these OR all of those. That is where Smart Folders stop being a search box and start being useful.
Five Smart Folders worth setting up
Files you’ve opened this week
Last opened date is within last 7 days. Pin this to the sidebar and it becomes the fastest way back into work in progress, no matter where the files are filed.
Large files taking up space
File size is greater than 500 MB, searched across This Mac. Sort by size and you immediately get a short list of large files worth reviewing before you start deleting anything.
Screenshots, wherever they landed
Name contains Screenshot, plus Kind is Image. Screenshots scatter across the Desktop, Downloads and Documents; this gathers them without moving a single one.
Old downloads you probably forgot about
Search the Downloads folder only, with Last opened date is not in the last 30 days. Treat the results as a review queue: installers, duplicate downloads, and temporary files often show up here, but check each item before deleting it.
Invoices and receipts
Kind is PDF plus Contents contains invoice. Because this searches inside the documents, it catches files whose names tell you nothing.
Change a Smart Folder later
Open the Smart Folder, click the ⋯ button in the toolbar and choose Show Search Criteria. Adjust the rules and click Save. To remove one, drag it out of the sidebar, or delete the file from ~/Library/Saved Searches — either way you are deleting the search, never the files it found.
Where Smart Folders stop being useful
Worth knowing before you build a system on them:
- They cannot move, rename or tidy anything. They show files where they are. For automatic filing, you want Folder Actions or Shortcuts.
- They depend on Spotlight. If Spotlight indexing is off for a volume, or the drive is a network share that is not indexed, results will be incomplete.
- They do not follow you. A Smart Folder is a local file, so it does not sync between Macs unless you put it in iCloud Drive yourself.
- Contents searches only reach file types Spotlight can read — text, PDFs with real text, Office and iWork documents. A scanned PDF with no OCR layer is invisible to it.
Related Finder guides
- Find the largest files on your Mac with the Finder — the manual version of the disk-space recipe above.
- Show the full file path in the Finder — useful once Smart Folders start showing you files whose location is not obvious.
- Fix missing Finder sidebar icons — if your saved Smart Folder does not appear where you expect.
