Oracle Instant Client Downloads for Microsoft Windows (x64) 64-bit

See the Instant Client Home Page for more information about Instant Client.

The installation instructions are at the foot of the page.

Client-server version interoperability is detailed in Doc ID 207303.1 . For example, Oracle Call Interface 23 can connect to Oracle Database 19c or later, while Oracle Call Interface 19.3 can connect to Oracle Database 11.2 or later. Some tools may have other restrictions.

Permanent links to the latest packages are: Basic , Basic Light , SQL*Plus , Tools , SDK , JDBC Supplement , ODBC All files required to run OCI, OCCI, and JDBC:OCI applications

(136,388,802 bytes) (cksum - 891930140)

Review the Operating System Checklist for Oracle Database Client Installation . Note Windows 7 is not supported.

The 23.8 Basic package requires the latest Microsoft Visual C++ Redistributable package common for Visual Studio 2015, 2017, 2019, and 2022 .

Basic Light Package instantclient-basiclite-windows.x64-23.8.0.25.04.zip Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(59,241,391 bytes) (cksum - 2353781361)

Review the Operating System Checklist for Oracle Database Client Installation . Note Windows 7 is not supported.

The 23.8 Basic Light package requires the latest Microsoft Visual C++ Redistributable package common for Visual Studio 2015, 2017, 2019, and 2022 .

All files required to run OCI, OCCI, and JDBC:OCI applications

(89,538,523 bytes) (cksum - 2013885692)

Review the Operating System Checklist for Oracle Database Client Installation . Note Windows 7 is not supported.

The 21.18 Basic package requires the Microsoft Visual Studio 2017 Redistributable .

Basic Light Package instantclient-basiclite-windows.x64-21.18.0.0.0dbru.zip Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(40,295,978 bytes) (cksum - 1726056157)

Review the Operating System Checklist for Oracle Database Client Installation . Note Windows 7 is not supported.

The 21.18 Basic Light package requires the Microsoft Visual Studio 2017 Redistributable .

All files required to run OCI, OCCI, and JDBC:OCI applications

(80,554,549 bytes) (cksum - 53506786)

Review the Operating System Checklist for Oracle Database Client Installation . Note Windows 7 is not supported.

The 19.27 Basic package requires the Microsoft Visual Studio 2017 Redistributable .

Basic Light Package instantclient-basiclite-windows.x64-19.27.0.0.0dbru.zip Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(40,520,006 bytes) (cksum - 3452622385)

Review the Operating System Checklist for Oracle Database Client Installation . Note Windows 7 is not supported.

The 19.27 Basic Light package requires the Microsoft Visual Studio 2017 Redistributable .

All files required to run OCI, OCCI, and JDBC:OCI applications

(77,769,261 bytes) (cksum - 1317689833)

The 18.5 Basic package requires the Microsoft Visual Studio 2013 Redistributable Basic Light Package instantclient-basiclite-windows.x64-18.5.0.0.0dbru.zip Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(39,177,858 bytes) (cksum - 2058932148)

The 18.5 Basic package requires the Microsoft Visual Studio 2013 Redistributable .

All files required to run OCI, OCCI, and JDBC:OCI applications

(75,062,441 bytes) (cksum - 1462971172)

The 12.2 Basic package requires the Microsoft Visual Studio 2013 Redistributable .

Basic Light Package instantclient-basiclite-windows.x64-12.2.0.1.0.zip Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(37,128,586 bytes) (cksum - 865082268)

The 12.2 Basic Light package requires the Microsoft Visual Studio 2013 Redistributable .

All files required to run OCI, OCCI, and JDBC-OCI applications

(72,416,242 bytes) (cksum - 1751087003)

The 12.1 Basic package requires the Microsoft Visual Studio 2010 Redistributable .

Instant Client Package - Basic Light instantclient-basiclite-windows.x64-12.1.0.2.0.zip Smaller version of the Basic, with only English error messages and Unicode, ASCII, and Western European character set support

(38,837,115 bytes) (cksum - 1745949615)

The 12.1 Basic Light package requires the Microsoft Visual Studio 2010 Redistributable .

Instant Client Package - JDBC Supplement instantclient-jdbc-windows.x64-12.1.0.2.0.zip Additional support for XA, Internationalization, and RowSet operations under JDBC

(1,574,297 bytes) (cksum - 3613358776)

Instant Client Package - SQL*Plus instantclient-sqlplus-windows.x64-12.1.0.2.0.zip Additional libraries and executable for running SQL*Plus with Instant Client

(876,515 bytes) (cksum - 1826332995)

Instant Client Package - SDK instantclient-sdk-windows.x64-12.1.0.2.0.zip Additional header files and an example makefile for developing Oracle applications with Instant Client

(2,748,874 bytes) (cksum - 1448203088)

Instant Client Package - ODBC instantclient-odbc-windows.x64-12.1.0.2.0.zip Additional libraries for enabling ODBC applications

(518,721 bytes) (cksum - 675718609)

Instant Client Package - WRC instantclient-tools-windows.x64-12.1.0.2.0.zip Workload Replay Client used to replay workload for RAT's DB Replay Feature

(15,237 bytes) (cksum - 2158108932)

Precompiler Package Precompiler Downloads Additional files for "proc" binary and related files to precompile a Pro*C application and demo

See the Instant Client Home Page for more information about Instant Client packages.

Client-server version interoperability is detailed in Doc ID 207303.1 . For example, Oracle Call Interface 19, 18 and 12.2 can connect to Oracle Database 11.2 or later. Some tools may have other restrictions.

Download the appropriate Instant Client packages for your platform. All installations require the Basic or Basic Light package.

Unzip the packages into a single directory such as C:\oracle\instantclient_19_3

Add this directory to the PATH environment variable. If you have multiple versions of Oracle libraries installed, make sure the new directory occurs first in the path. Restart any terminal windows or otherwise make sure the new PATH is used by your applications.

Download and install the correct Visual Studio Redistributable from Microsoft. Instant Client 23, 21 and 19 requires the latest Microsoft Visual C++ Redistributable package common for Visual Studio 2015, 2017, 2019, and 2022 . Instant Client 18 and 12.2 require the Visual Studio 2013 redistributable . Instant Client 12.1 requires the Visual Studio 2010 redistributable .

If you intend to co-locate optional Oracle configuration files such as tnsnames.ora, sqlnet.ora, ldap.ora, or oraaccess.xml with Instant Client, then create a subdirectory such as C:\oracle\instantclient_19_3\network\admin

This is the default Oracle client configuration directory for applications linked with this Instant Client.

Alternatively, Oracle client configuration files can be put in another, accessible directory. Then set the environment variable TNS_ADMIN to that directory name.

Start your application.

ODBC users should follow the ODBC Installation Instructions .

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