MMDeveloper

A wordpress plugin that allows you to easily create your error log file and view your wordpress errors. Once a day it will shift your log file into a logs directory under root and datestamp it. This keeps the error files small and easier to manage.
Built by The Marketing Mix Perth: http://www.marketingmix.com.au

View WP Error Log

Reiji Sato

Manage WordPress log files independently of WP_DEBUG mode. 
You can specify the output directory and file name, download log files, and delete them as needed.
By specifying a date format in the file name, you can split logs daily or monthly.

WP Output Log File

Manage log files with custom directory and filename. Download and delete logs regardless of WP_DEBUG.

View WP Error Log vs WP Output Log File