Desktop app for Microsoft 365
Find what you need.
Gather it into one place.
Search SharePoint, OneDrive, and mail from a single desktop app. Copy the files that matter into one library — ready for review, hand-off, or eDiscovery. Nothing leaves Microsoft 365.
30-day free trial. No credit card required.
One search, three surfaces
Query SharePoint sites, OneDrive libraries, and mailboxes side-by-side. Preview hits, refine, and act.
Gather into a single library
Copy matching files into a target SharePoint library with a clear audit trail. Perfect for legal hold and case prep.
Stays in your tenant
No cloud proxy, no data leaves Microsoft 365. Sightline runs on your machine and talks to Microsoft Graph directly.
Built for
Legal, compliance, and IT teams who need answers fast.
Subject Access Requests
Find every file, message, and calendar entry mentioning a subject in minutes.
Litigation hold
Preserve responsive content into a dedicated library with full chain of custody.
M&A due diligence
Discover what a business unit actually holds before you migrate or divest.
Departing employee reviews
Sweep a leaver's OneDrive and mailbox for anything that needs to stay with the company.
Try it on your tenant today.
Install in under a minute. 30-day free trial, then choose a plan that fits.