CodeWarrior is an integrated development environment for the Macintosh, Microsoft Windows, Linux, and embedded systems that is developed and marketed by Freescale Semiconductor. Specialized versions for the Sony PlayStation 2, Nintendo GameCube, Nintendo DS, Palm OS, and Symbian OS also exist, and there was even a version for BeOS. C and C++ compilers are the focus of the tools, though versions of CodeWarrior have included Objective-C, Java or Pascal compilers as well.

CodeWarrior was originally developed by Metrowerks. The first versions of CodeWarrior targeted the Macintosh, with much of the development done by a group from the original THINK C team. Much like THINK C, which was known for its fast compile times, CodeWarrior was faster than Macintosh Programmer's Workshop (MPW), the development tools written by Apple, and as of August 2005 is still faster than Apple's gcc based Xcode development tools.

CodeWarrior was a key factor in the success of Apple's transition of its machine architecture from Motorola 68K processors to PowerPC because it provided a complete, solid PowerPC compiler when the competition (Apple's MPW tools and Symantec C++) was mostly incomplete. Metrowerks also made it easy to generate fat binaries which included both 68K and PowerPC code.

However, after Metrowerks was acquired by Motorola in 1999, the company concentrated on embedded applications, devoting a smaller fraction of their efforts to compilers for desktop computers. On July 29, 2005, they announced that CodeWarrior for Mac would be discontinued after the next release, CodeWarrior Pro 10. Although Metrowerks did not detail their reasons, the demand for CodeWarrior had presumably fallen after Apple began distributing a free IDE with Mac OS X. In addition, Apple's switch to Intel chips left Metrowerks without an obvious product as they had sold their Intel compiler technology to Nokia earlier in 2005.

During its heyday, the product was known for its rapid release cycle, with multiple revisions every year, and for its quirky advertising campaign. Their "geekware" shirts were featured in the fashion pages of the New York Times.