Step 1: Download SyncMate Free edition.
Firstly, you will need to download and install SyncMate Free edition on your Mac.
Step 2: Add your Dropbox account to SyncMate connections list.
After launching SyncMate click "Add connection button". Then choose Dropbox account from the list and enter your Dropbox account details in SyncMate wizard. You are logging in to your Dropbox account via HTTPS channel, so no need to worry that the data you are syncing with SyncMate can be viewed by anyone but you.
*Have any questions? Read this article.
Step 3: What would you like to sync?
SyncMate Free edition allows you to sync contacts and calendar entries between your Mac and Dropbox account. Just choose one of these plugins and go on!
*Read Step 6 to find what other sync options SyncMate has for you.
Step 4: Choose sync direction
With SyncMate you can sync data between Mac and Dropbox account in three directions - Mac to Dropbox (Mac data will be added to the existing entries in your Dropbox account), Dropbox to Mac (Dropbox data will be added to the existing Mac entries) and bi-directional - data will be mutually updated on both sides.
Contacts, calendars, folders, To Do/Reminders, Safari bookmarks, Mail notes (OS X 10.7 or earlier ) and Entourage notes can be synced in three directions; music, images and videos - in two - from Mac to Dropbox and from Dropbox to Mac.
Step 5. Let it sync!
Now just click "Sync now" button and your data will be updated on both sides (according to chosen sync direction).
Step 6. SyncMate Free vs SyncMate Expert
With SyncMate Free edition you can sync Contacts and Calendars in your Dropbox account and Mac.
With SyncMate Expert you can do even more. You can sync To Do/Reminders, Safari bookmarks, favorite music and videos, photos, folders, Mail notes and Entourage notes. Moreover, you can sync Mac with Dropbox account automatically.
Step 7. Sync your Mac with even more devices!
Make all your devices work in sync! SyncMate can also sync your Mac with Windows Mobile, BlackBerry, Android devices, Nokia S40 phones, other Macs and Windows PCs, Sony PSP, any mounted storage devices, MTP devices, Google accounts, iCloud, Yahoo!, iPhones, iPads, iPods Touch or Nano.