Sightline 365Sightline 365
Sightline365
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.

21-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.
Data never leaves your tenant. Sightline 365 runs on your desktop and talks directly to Microsoft Graph. No third-party cloud, no shared review portal.
Read the security overview →

Try it on your tenant today.

Install in under a minute. 21-day free trial, then choose a plan that fits.

Download for Windows