Downloading Oracle Instant Client 11.2.0.3 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. This PC software can be installed on 32-bit versions of Windows XP/XP Professional/7/8/10/11.
We recommend checking the downloaded files with any free antivirus. The most popular versions of the tool are 11.2, 11.1 and 10.2. The program is included in Development Tools. Sqlplus.exe is the frequent file name to indicate this program's installer. The actual developer of the free software is Oracle.
From the developer:
Instant Client allows you to run your applications without installing the standard Oracle client or having an ORACLE_HOME. OCI, OCCI, Pro*C, ODBC, and JDBC applications work without modification, while using significantly less disk space than before. Even SQL*Plus can be used with Instant Client.
You may want to check out more software, such as Oracle SSPR Client, Oracle Beehive Conferencing or Oracle Client Express Edition, which might be similar to Oracle Instant Client.
DB Tools
Webmaster Tools