ZXing

Supports multiple international formats and has support for iOS and Android.

What is new in this release:

• Several bug fixes, especially for Data Matrix and PDF417 parsing
• Retired jRuby binding
• Barcode Scanner can now disable history

What is new in version 3.2.0:

• Several bug fixes, especially for Data Matrix and PDF417 parsing
• Retired jRuby binding
• Barcode Scanner can now disable history

What is new in version 2.3.0:

• Added clone of Google Chart Server QR code encoder API to zxingorg/, at endpoint /chart
• Updated zxing.appspot.com generator to remove deprecated API usage, use latest GWT / App Engine
• Added skeleton Google Glass Mirror API app
• Improve and standardize Maven build, standardize directories and version naming
• Barcode Scanner Android up requires Android 4 and is updated to use Android 4+ APIs
• javase/ and zxingorg/ modules now use Java 7
• Many small fixes and improvements

What is new in version 2.2:

• Retire Symbian port
• Retire C# port
• Improved PDF417 decoding, including macro PDF417
• Added Aztec and Data Matrix encoders
• Added RSS Expanded decoder
• Java, C++ and iPhone build system updates, including migration to Maven for most Java modules
• Many small fixes and improvements
• Many small updates to the Android app, Barcode Scanner, including rare bug fixes and translation updates. The 2.2 release corresponds substantially to v4.3.2.
• Update zxing.org web-based decoder for Amazon Elastic Beanstalk (and redeployed there)
• Many ports of Java updates to C++ and C# ports
• Standardize test system image processing and image format for reproducibility

What is new in version 2.0:

• zxing.appspot.com/ has been rewritten to work with GWT 2.4.
• Cpp/, objc/ and iphone/ have received many ports of fixes and other functionality from Java, and changes to work with more recent iOS.
• Bug/, rim/, and javame/ have been removed.
• Many, many small bug fixes and optimizations, mostly to core/ and android.

What is new in version 1.7:

• Initial support for Aztec codes
• Added the ability to read rectangular DataMatrix codes
• Added new lengths for ITF
• Dozens of bug fixes to core decoding routines
• New C# port
• Android app
• Tablet support
• Many translations added and updated
• Support for new Intent parameters
• Many bug fixes and small features
• Mostly rewritten iPhone port
• New ZXingWidget library to include scanning in any iOS app
• Made CommandLineRunner multithreaded and recursive