Update Lightroom Classic now to try out new features and enhancements.

The Lightroom Classic catalog is a database that tracks the location of your photos and information about them. When you edit photos, rate them, add keywords to them, organize them into collections, or do anything else to them in Lightroom Classic, all those changes are stored in the catalog. The files themselves are not touched. 

When you start Lightroom Classic for the first time, an empty catalog file (e.g., Lightroom 5 Catalog.lrcat) is automatically created (all catalog files end with .lrcat). To start working with this default and empty catalog, click the Import button.

What are the benefits of upgrading my catalog?

Updating the catalog is required to keep in sync with the latest Lightroom versions feature set, below are a few questions related to keeping the catalog up to date.

Why should I upgrade my catalog?

When you install a newer version of Lightroom Classic(especially for a major version update), the app will ask you to upgrade the catalog to work with the latest version. This is normal to accommodate any database-related changes made for the updated version of Lightroom Classic and is important to access new features and related performance improvements. This is safe, and you can track the upgrade status with the progress bar.

What happens to my data after the upgrade?

Your data, edits, presets, other preferences, etc will remain intact after the upgrade.

Will my old catalog be deleted?

If you wish to use the last Lightroom Classic version, your old catalog will be in the same folder location.

Does the back up catalog use a lot of space?

The backup is a compressed zip file and doesn't take much space on the hard drive and is saved next to the catalog by default in a folder named backup.

Can I open my old catalog on the newer versions even after the upgrade?

You cannot open the old catalog in the new Lightroom Classic without updating the catalog.

Where are my images and catalog located?

See Open a file in Explorer or Finder to learn about where your images are saved. Do note that your images are not stored in the Lightroom Classic app.

Your Lightroom Classic catalogs are located in the following folders, by default:

• Windows: \Users\[user name]\Pictures\Lightroom
• macOS: /Users/[user name]/Pictures/Lightroom

To check your default catalog, choose Edit > Preferences > General and check Default Catalog.

For more information, see Preference and other file locations | Lightroom Classic

How do I open my old catalog in my new version of Lightroom Classic?

You can easily upgrade your old catalog in the new version of Lightroom Classic. See Upgrade a catalog from an earlier version of Lightroom Classic.

How do I merge two catalogs or import folders from another catalog?

How can I use my catalog on two different computers?

The easiest way to use your Lightroom Classic catalog on more than one computer (such as a desktop and laptop) is to keep the catalog and photos together on an external drive. Then, you can set that catalog as the default catalog in Lightroom Classic Preferences.

What is .lrcat-data file?

Lightroom Classic stores some additional information in a new file, with an extension of .lrcat-data, along with the catalog file. This file is located in the same folder as your catalog file. This file contains important information about your photos and edits and should be included in any backup regimes you may have. 

Managing AI Edits and Missing .lrcat-data Files

• If the ‘.lrcat-data’ file is missing or misplaced, images in Lightroom Classic will lose added AI edits permanently if they have AI edits. In such cases, when you open a catalog, Lightroom Classic displays a warning dialog.
• If you have the corresponding lrcat-data file, quit Lightoom Classic. Keep the file in the catalog folder and then open.
• If you don’t have the corresponding lrcat-data file, choose to Continue. New lrcat-data file would be created and AI edits need to be recomputed manually. 

How do I move a catalog to a different drive or computer?

You can move your catalog to a different location on your computer's hard drive, to an external disk, or to another computer altogether. For details, see Move a catalog.

To move a catalog between a Windows computer and a Mac, copy your catalog, .lrcat-data, preview, and image files from the original computer onto an external drive. Then, attach the drive to the second computer and copy the files to the desired location on the second computer.

How do I open or switch between different catalogs?

To open a different catalog, choose File > Open Catalog, navigate to the location of the catalog you want to open, and click Open.

If you have multiple catalogs, you can tell Lightroom Classic which one to open when you start the program. To know more, see Change the default catalog.

Are catalogs in Lightroom Classic backward compatible?

No, the catalogs in Lightroom Classic aren't backward compatible. Catalogs from a new Lightroom Classic version cannot be opened in the older versions.

When you try to open a catalog from a new version into an older Lightroom Classic version, you get a dialog displaying: The Lightroom catalog named [Your Catalog Name] cannot be opened because it is too new to be used by this version of Lightroom.

To work in the older versions, import the required photos into Lightroom Classic and create another catalog from that version.

Check the table below to know your catalog compatibility:

How do I rename a catalog?

You can rename a catalog in the Explorer (Windows) or Finder (macOS). If you rename a catalog, make sure you rename its corresponding .lrcat-data, previews, and smart previews files as well.

How can I export a folder as a catalog?

To export a folder as a catalog, in the Folders panel of the Library module, right-click (Windows)/Control-click (macOS) the folder you want to export. From the context menu, select Export this Folder as a Catalog.

How do I back up a catalog and manage backup storage?

You can back up your catalog automatically when you quit Lightroom Classic or back up manually. To plan your backup strategy to manage storage and back up your catalog, see Plan your backup strategy.

Are my images being backed-up on Cloud?

No, but you can sync smart previews of your photos from Lightroom Classic to the Lightroom ecosystem. To know more, see Sync Lightroom Classic with Lightroom ecosystem.

How do I delete a catalog?

To learn how to delete a catalog, see Delete a catalog.

Can I store or share a catalog on a network?

No, you can't store catalogs on a network but you can store or share your photos on a network. Smart Previews let you edit your photos in Lightroom Classic even when you are disconnected from the network or when your computer is disconnected from the drive that has your photos.

Lightroom Classic can't find my catalog. How do I find it?

If you move or rename your catalog and then try to open Lightroom Classic, you could encounter an error such as Lightroom catalog was not found.

My photos are missing in the catalog. How do I find them?

When you move images in Finder (macOS) or Explorer (Windows), your catalog could lose track of them. To avoid missing photos, always move them from within Lightroom Classic than in the operating system. To know more, see Move photos to a different folder and Locate missing photos.