| HandlerInterface | Interface that all Monolog Handlers must implement |
| AbstractHandler | Base Handler class providing the Handler structure |
| AbstractHandlerTest | |
| AbstractProcessingHandler | Base Handler class providing the Handler structure |
| AbstractProcessingHandlerTest | |
| BufferHandler | Buffers all records until closing the handler and then pass them as batch. |
| BufferHandlerTest | |
| FingersCrossedHandler | Buffers all records until a certain level is reached |
| FingersCrossedHandlerTest | |
| FirePHPHandler | Simple FirePHP Handler (http://www.firephp.org/), which uses the Wildfire protocol. |
| FirePHPHandlerTest | |
| GroupHandler | Forwards records to multiple handlers |
| GroupHandlerTest | |
| MailHandler | Base class for all mail handlers |
| MailHandlerTest | |
| NativeMailerHandler | NativeMailerHandler uses the mail() function to send the emails |
| NullHandler | Blackhole |
| NullHandlerTest | |
| RotatingFileHandler | Stores logs to files that are rotated every day and a limited number of files are kept. |
| RotatingFileHandlerTest | |
| StreamHandler | Stores to any stream resource |
| StreamHandlerTest | |
| SwiftMailerHandler | SwiftMailerHandler uses Swift_Mailer to send the emails |
| SyslogHandler | Logs to syslog service. |
| SyslogHandlerTest | |
| TestFirePHPHandler | Simple FirePHP Handler (http://www.firephp.org/), which uses the Wildfire protocol. |
| TestHandler | Used for testing purposes. |
| TestHandlerTest |