Offline Search Apps for Mac and Windows: Find Anything Without the Cloud

A lot of "search everything" apps have a catch in the small print: your files, screenshots or browsing history go to a server so the app can index them. For many people that's fine. For contracts, client files, medical records or anything you'd rather keep at home, it isn't.

These are the offline search apps for Mac and Windows we'd trust, what each one covers, and a quick way to check what any app really sends.

How to check whether an app is really offline

1. Turn off Wi-Fi and use it. If search still works, indexing is local.
2. Look for an account. An app that needs a login usually has a server behind it.
3. Read the privacy page for "process" and "improve". "Processed on our servers" or "used to improve our models" means upload.
4. Check the network. On Mac, Little Snitch or LuLu shows every connection. On Windows, GlassWire or the firewall log does.

The apps

Trailback (Mac and Windows): pages, files, screenshots and copied text

Trailback remembers the web pages you visit, the files you open, the screenshots you take and the text you copy, reads the words inside them, and finds any of it when you describe it. Everything is stored encrypted on your own computer, about 20 MB a year, and there's no account and no cloud. Passwords and card numbers are skipped on purpose, private browser windows are never recorded, and you choose how long memories are kept.

It passes the Wi-Fi test: turn Wi-Fi off and search works the same. $19 one-time.

HoudahSpot (Mac): deep file search

A powerful front-end to the Spotlight index. Filters by name, kind, date, tags and content. Fully local, one-time price. Files only.

Everything (Windows): instant file names

Free, tiny, and finds any file by name in milliseconds. Local, no account. Names only, not contents.

DocFetcher (Mac, Windows, Linux): search inside documents

Open source, indexes the text of PDFs, Office files and more in folders you choose. Local, free, and a bit old-fashioned to look at.

Raycast (Mac, Windows): launcher with local file search and clipboard

The core launcher, file search and clipboard history work locally. The AI features use the cloud, so keep them off if that matters to you.

Built-in: Spotlight and Windows Search

Both index files locally. Spotlight can also send search terms to Apple for web suggestions (turn off "Siri Suggestions" to stop it). Windows Search can show Bing results (turn off "Search highlights" and web results). See our Spotlight alternatives guide, and Rewind AI alternatives for memory apps.

What to avoid, or at least check

• Cloud-first "AI memory" apps. Anything that records your screen and sends frames to a server. Read the privacy page.
• Browser extensions that "save pages to your account". The page text leaves your computer.
• Clipboard managers with sync on. Everything you copy goes to their cloud.

Written by Pavan GK

Pavan is the founder of Trailback, a private, offline app for Mac and Windows that helps you find anything on your computer by describing it. He builds it at Hara Infotech in Hyderabad.