DebugZen is the ultimate developer tool for WordPress troubleshooting. It gives administrators a powerful, focused dashboard screen for managing WordPress debugging settings and diagnosing fatal errors, warnings, and notices in real time.

If you have ever struggled with finding the debug.log file, or if you need an intuitive error log viewer right inside your WordPress admin area, DebugZen makes it effortless to monitor your site’s health and troubleshoot issues without relying on FTP or SSH.

The plugin uses the battle-tested WP Config Transformer library to read, add, and update these constants in wp-config.php:

WP_DEBUG
WP_DEBUG_LOG
WP_DEBUG_DISPLAY

DebugZen does not use fragile regex or string replacement to modify configuration constants.

Diagnostic Log Viewer & Smart Log Grouping

Instead of raw, unformatted text files that consume excessive memory, DebugZen provides a structured, full-width diagnostic workbench inside WordPress:

Smart Log Grouping: Automatically consolidates repeated identical errors into single cards with occurrence counts and first/last seen timestamps.
Source Code Context & Stack Traces: Expandable stack traces and on-demand source preview around an error line, complete with line-number gutter, error line highlight, and a capability-gated “View in Editor” jump action.
Severity Filtering, Search & Shortcuts: Instant debounced search and filtering across Fatal Errors, Warnings, Notices, Deprecations, and Info entries, with workbench keyboard shortcuts (/ or Cmd/Ctrl + K to search, r to refresh, t to toggle Live Tail, Esc to clear or close) and a Screen Help tab.
Real-Time Live Tail: High-performance streaming that reads newly appended log bytes using byte offsets without polling full files or exhausting PHP memory.
Log Rotation & Size Management: Monitor debug log size with visual thresholds, automatic truncation, or timestamped archival rotation.
Hardened Access Control: Restricted to administrators with manage_options (and edit_plugins/edit_themes for editor jumps), protected by nonces, user-bound HMAC tokens, canonical realpath() directory boundary validation, and explicit exclusion of wp-config.php, dotfiles, and active log files.
Zero External Dependencies: Operates 100% locally with no telemetry, tracking, or remote CDNs.

Third-party libraries

DebugZen includes WP Config Transformer by the WP-CLI Development Group. It is distributed under the MIT License. Its license is included at vendor/wp-cli/wp-config-transformer/LICENSE.

This plugin does not contact external services, collect telemetry, or load remote executable code.