Cairn - Simple All-In-One Device Manager

Find your way through every file.

A calm, local-first desktop app that gives you one quiet window into everything on your Windows PC — your files, your space, your apps, and anything worth a second look.

Start with Cairn — $0+ a month See what's inside

Local-first. Your files never leave your machine. Windows · cancel anytime.

All files

487,432 files · 1.2 TB · last indexed 2 min ago
Modified · last 30 days Size Type Risk Location
Name Size Modified Risk
update.exe 14.2 MB Yesterday, 9:42 PM Suspicious
screen-recording-final.mov 2.4 GB Apr 26, 3:14 PM Safe
q1-board-deck.pdf 18.4 MB Apr 24, 11:08 AM Safe
archive-2019.zip 847.0 MB Apr 22, 7:50 AM Worth a look
tax-2025-final.docx 312 KB Apr 18, 2:00 PM Safe
What's inside

One window for your whole machine.

Six tools that work together — not six apps that nag you. Calm by design, fast on large drives.

Files

Browse your whole filesystem in a clean, fast table. Sort, search, and filter by date, size, and type — folder sizes at a glance.

Find

Scan recursively and surface duplicates, streamed in batches so results appear instantly — even on very large drives.

Safety Check

A calm risk inspector that flags double extensions, hidden executables, loose scripts, and odd startup entries — with a real-time background monitor.

System Junk

Find temp files, browser and package caches, logs, and Recycle Bin contents — then clear them all in one click.

Apps & Games

A full inventory of what's installed, with leftover "ghost" entries detected and clean uninstalls.

Home

Device details, drive health, a storage treemap, and quick access to wherever you've been.

Private by design

It's not antivirus. It's clarity.

All scanning and analysis happen on-device. Cairn makes no network calls with your file contents — and it tells you what to worry about without the noise. Earth tones, never traffic-light red, because bright alarms train people to ignore them.

Safe · 412,883 files Worth a look · 7 Suspicious · 1
Get Cairn

Open it once a week. Close it knowing.

Most people open Cairn, see what's there, and close it knowing their machine is in good shape. That's exactly the point.

$0+ a month / month · cancel anytime
Get Cairn now

Windows-only for now · Apple support coming soon.