Capture One Offline Files

Relocating Offline Files in Catalogs

Offline files in Capture One mean that Capture One no longer knows the physical location of the images that are in a catalog. There can be a couple of different reasons why this happens, but in most cases it’s fast and easy to fix.


Relocating individual images

  1. Right-click the offline image and choose ‘Locate…’
  2. Navigate to the correct location of the image and choose ‘Open’.
  3. The image will be relocated.


Capture One Locate Offline Files


Relocating a folder of images

  1. Find the offline folder. This can be done in two ways:

1) Browse to the folder within the Folders area of the Library Tool. Offline folders are indicated by a warning triangle.

2) Right-click an offline image and choose ‘Show in Library’. The folder containing the image will be highlighted within the Library Tool.

  1. Right-click the offline folder and choose ‘Locate…’
  2. Navigate to the correct location of the folder and choose ‘Open’.
  3. All the images within the folder will be relocated.

Capture One - Relocating Folder


Relocating offline drives

If an external hard drive has gone offline, it most often means that it’s simply ejected or sleeping. If reconnecting the drive does not make it come back online within your catalog, even after restarting Capture One, you need to relocate it.

  1. Right-click the offline drive and choose ‘Locate…’
  2. Navigate to the correct location of the drive and choose ‘Open’.
  3. The drive will be relocated.

Capture One - Relocating Offline Drive


Why does this happen and how can I avoid it?

When images are added to a Capture One catalog, it will track the location of these, while keeping adjustments and metadata inside the catalog.  When images and folders are moved around from within Capture One, the links between the catalog and the images are kept intact, and no issues arise.

If images or folders are moved or renamed using the Finder, Explorer or other applications outside of Capture One, the link breaks!

This introduces images that show as ‘Offline’, because Capture One doesn’t know the physical location of these images anymore. As Capture One uses image previews when working in a Catalog, these offline files can still be edited, and the adjustments will be saved within the Catalog. Offline files cannot be exported until you relocate them, except when using the format ‘JPEG Quickproof’. This format will use the previews for exporting and cannot exceed the resolution of your previews.

The general rule is to try to keep all file operations within Capture One. But if you do unintentionally or otherwise move items outside of Capture One, it’s easy to fix, as shown above.

To get in-depth knowledge on how to master Asset Management in Capture One, we recommend these two webinars:


October 22 2018

By David Grover

Category: Tech Talk Tags:
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  • David Grover
    David Grover

    David Grover is part of the Capture One team, bringing you help, advice and education on a variety of subjects and platforms. David can be found on most weeks delivering live Capture One Webinars or anytime on our YouTube Channel.

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    Comments (9)

    Paul Steunebrink

    Very clear explanation, David. Great job!

    Yeah, great. Now, what do I do when C1 failes to empty the trash folder because the files are offline for they don’t really exist anymore ?

    Hi David,
    I miss you a looooot on the you tube channel !!!!!!. I do hope you come back and bring new Capture One features with you

    Great explanation about this subject. I remember jumping through many hoops sorting this out.

    Any advice for locating files that have the following message:

    ‘The selected image is either unavailable, in an unsupported format or corrupted’

    I tried to open a previous catalog – location has not been changed, but half of the images had that message!


    @Nicu: I used to have that issue as well, but I think it was fixed in a later version of Capture One 10.

    How about to mass-locate files in SESSION-mode, collected in an Album? [background: I shifted a session-collector directory 1 level higher, into to drive root]
    Up to now I didn’t find any way beyond 1-by-1 path updates, it’s quite cumbersome job….

    frank myers

    I traveled with my main C1 file on an ext drive and added photos to that file and drive. At home, I manually moved the new photos to my main drive. I moved my main C1 file back to main computer and disconnected the ext drive. The new photos show Offline. If I then use Locate and point to their new location on the main drive, the C1 DB gets confused. Some other links get moved around,

    Seems this technique should work but does not. thanks.

    Probably. Yet, the problem reappears in C1 11.2.1

    Your explanation is very clear. Thank you for sharing

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