FreeFileSync

This is the best file synchronization program that I've found. It is fast, stable, and has the right features without being bloated. The author has done a lot of careful thinking about how the program should work from the user's perspective, and (more importantly) how it works under the covers.

I've used MSOFT's SyncToy for years and thought it was the best of what was available ... that is, until I started using FreeFileSync. There's no comparison in terms of all the things that are important: ease of use, performance, flexibility. SyncToy was very cumbersome and time consuming to configure a sync job. This program is a breeze. I configured 8 sync jobs to backup data to a USB drive (e.g. D to K). I then wanted the same 8 sync jobs to backup to a peer computer (e.g D to R). It was such a breeze to make copies of these 8 configurations, rename them, and edit them to globally change "K:" to "R:". This is my best example of flexibility. SyncToy is very painful doing this, with its proprietary non-editable configuration files. Installation was among the quickest I've experienced. As for accuracy, a bugaboo with SyncToy was under unknown circumstances not removing deleted directories from the target. FreeFileSync has so far been flawless in this regard. Also, a 500MB directory would hang when syncing to my peer computer. Not so any longer. I installed, set up and tested this software on two friends machines who had simpler requirements than my own. Took under 15 minutes each, and only a few minutes to show them how to use it. Thanks so much to you developers who gave of your time and energy to offer such a nice tool to the internet community. I give you 10 stars, unless five is the limit. In that case, I'll give you six.

Perfect developed, easy to use and works well.