| Name | Description | Type | Package | Framework |
| Decoder | The main class which implements QR Code decoding -- as opposed to locating and extracting the QR Code from an image. | Class | com.google.zxing.qrcode.decoder | ZXing |
| ErrorCorrectionLevel | enum ErrorCorrectionLevelSee ISO 18004:2006, 6. | Class | com.google.zxing.qrcode.decoder | ZXing |
| Mode | See ISO 18004:2006, 6. | Class | com.google.zxing.qrcode.decoder | ZXing |
| QRCodeDecoderMetaData | Meta-data container for QR Code decoding. | Class | com.google.zxing.qrcode.decoder | ZXing |
| Version | Class | com.google.zxing.qrcode.decoder | ZXing | |
| Version .ECB | Encapsualtes the parameters for one error-correction block in one symbol version. | Class | com.google.zxing.qrcode.decoder | ZXing |
| Version .ECBlocks | Encapsulates a set of error-correction blocks in one symbol version. | Class | com.google.zxing.qrcode.decoder | ZXing |