An extension to connect Joomla with www.dropbox.com

Demo

You can publish files, view the pictures in a directory and let users upload files to dropbox  (the max filesize for the upload is limited by your PHP settings - absolute maximum are 150MB - read the FAQs)
It can be used as component or as plugin.

NEW: 

1. 5.1: Support for PHP8
2. 5.0: Support for Joomla 4
3. 4.1: using new dropbox refresh tokens
4. 4.0: access to complete dropbox, not only Apps folder
5. 4.0: use new dropbox API

Requirements:

1. PHP 5 >= 5.6 with PECL json >= 1.2.0
2. cURL with SSL
3. Joomla 3.x or 4.x

HOWTO:
Simple Setup
Change the Settings

Component to import content into K2 from a CSV-file and to export your K2 data to a CSV file.
This is not a good component for regular backups. It's much better to backup the database directly! Use this extension for transferring items to/from K2, mass updates in K2 and so on, but do not relay on it as your only backup.

Important:

• the version 1.x is for Joomla 1.5 /1.6 / 1.7 / 2.5
• the version 2.x is for Joomla 3.x

Its possible to import nearly all fields including "extra fields", userids, images, tags, galleries, meta information, categories and attachments.
To have an example file to import try an export first and check the documentation.
The export works for nearly all standard K2 fields. Images are exported as path to the file. The hierarchy of the categories is not exported or imported.

Requirements:

• PHP 5 >= 5.2.0 with PECL json >= 1.2.0
• Joomla 1.5.x / 1.6.x / 1.7.x / 2.5.x / 3.x
• K2 >= 2.6.8 (if you are using an older K2 version, please update K2 first)

Supportforum
Manual