File Type Checker for Jira Cloud
File Type Checker for Jira Cloud
Breadcrumbs

How to locate very large attachments in a Jira Project Space

Use this guide to identify unusually large attachments in a Jira project space with File Type Checker so you can review storage-heavy files, investigate upload patterns, and decide whether cleanup or governance is needed.

Before you start: You need minimally project admin rights to access the reports.

Steps

Start with a Jira project space that has a lot of work items or activities.
They are likely to have more attachments and higher storage space usage.

  1. Go to a Jira project space

  2. Locate the Attachment Report

    1. For Jira projects, it is in a tab

      Attachment Report tab.png


    2. For Service Management projects, it is available from the left sidebar

      Attachment Report link for JSM projects.png


  3. Wait for the app to scan the project

  4. It will display a summary of the Jira project space

    Attachment Report Summary.png


  5. Click on the Total Size header to sort the report by the total file size for each file type

    File Type Data Report.png


  6. Click on the … button under the Actions column to choose First 10 Occurrences

  7. It will launch a new Work Item Search page to display those work items containing that file type. For performance reasons, the app only display up to the first 10 occurrences. You can also use the Attachment Searcher to find the full list

    Work Item Search page.png


  8. Click into any work item in the results

  9. The dmg attachment can be found under the list of attachments

    Attachments List in Work Item View.png

FAQs

What are the common file types that tend to be very large in terms of size?

Some common file types that tend to be “naturally” large, even for a single file, are:

Typically very large by nature

  • Videos

    • .mp4, .mov, .mkv, .avi, .wmv

  • Audio (lossless / long recordings)

    • .mp3, .m4a, .aac (if hour‑long meetings, etc.)

  • Archives / bundled content

    • .zip, .rar, .7z, .tar, .gz

  • Documents that embed heavy content

    • .pdf (especially scanned docs or ones with embedded images/video)

    • .keynote, .ppt, .pptx (presentations with media)

  • macOS installers

    • .dmg: disk image, typically tens of MB to several GB

    • .pkg, .mpkg: installer packages

    • .app (usually zipped when attached): application bundles

  • Windows installers

      • .exe: installers or setup programs (sizes vary widely)

      • .msi, .msix, .appx: Windows installer packages

  • Disk and virtual machine images

      • .iso, .img: OS or software disc images, often several GB

      • .vmdk, .vdi, .vhd, .vhdx, .qcow2, .ova, .ovf: virtual machine disks and appliances, often tens of GB


What to do after you find the large attachment?

  • Confirm the attachment is still needed for business or audit purposes

  • Ask the project owner whether duplicates can be removed

  • Decide whether upload rules or size limits should be tightened

  • Review whether quarantine, scanning, or file-type controls should be adjusted