EF AutoSync is a free Windows utility that quietly keeps folders in sync, perfect for backing up USB drives, external media, or remote shares. Whether you're mirroring, archiving, or updating, it automates the chore. Works on 32‑ and 64‑bit Windows, with a portable version too.

Why You'd Want It

If you move files between devices (flash drives, backups, network folders), you can spend more time copying than working. EF AutoSync handles that for you, running tasks on a schedule or on the fly. It's simple, but effective, especially if you don't need a full-blown sync suite with a ton of bells and whistles.

What It Does

This is a no-nonsense sync tool. You pick folders, define rules (mirror, update, include/exclude filters), and hit "Run" or set a schedule. It'll replicate changes to the target, new files, modified ones, even deletions if you want a true mirror. Bonus: support for WFX plugin integration lets you include FTP, network shares, or even cloud storage.
[
h2]Features We Like

Simple setup, source, destination, rule set, go.

Mirror or update modes, your call how aggressive it is.

Include/exclude filters, by name, date, size, or wildcard.

Schedule jobs, run on demand, at startup, or by a timer.

Supports WFX plugins, sync with FTP, network drives, and cloud drives.

Portable version available, you can run it right off a USB stick anywhere.

Things to Keep in Mind

It’s basic, no file conflict resolution dialog, no version history, no visual diff tool. And it's Windows‑only, with a dated user interface. But, if you want one-way or bidirectional sync, it delivers.

SEO‑Friendly Keywords

automatic file sync, USB backup, Windows folder mirror, portable sync utility, free file synchronizer
[
h2]Geek Verdict
If you need a lightweight, free, Windows-only tool for basic folder syncs, especially between local drives, USB sticks, or network shares, EF AutoSync gets the job done without fuss. It's not fancy, but it's solid, portable, and distraction‑free. For everyday mirroring and backups, it's a worthy pick.