http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html
SQL Developer
Downloads
License Agreement
Thank you for accepting the OTN License Agreement; you may now download this software. To learn more about our development tools, join us every Wednesday for a free Webinar on Database Development Tools.
SQL Developer 4.1.3
Version 4.1.3.20.78, Updated December 22, 2015
Bugs Fixed, Release Notes, New Features, Documentation
Windows 64-bit with JDK 8 included
Installation Notes Download Download 381 MB
Windows 32-bit/64-bit
Installation Notes, JDK 8 or above required Download Download 314 MB
Mac OSX
Installation Notes, JDK 8 or above required Download Download 314 MB
Linux RPM
Installation Notes, JDK 8 or above required Download Download 308 MB
Other Platforms
Installation Notes, JDK 8 or above required Download Download 314 MB
Troubleshooting - Previous Version
Command Line - SQLcl - Early Adopter
Updated Feb 18, 2016
All Platforms
Getting Started Video Download