📚 Last reviewed and updated on June 16, 2026 • Written by thoughtsunwritten
I created this post as a research file for myself and anyone looking for effective WordPress debugging plugins. Whether you’re a developer or a site administrator, the right tools can make troubleshooting and maintaining your WordPress site much easier. Below, I’ve compiled notes and summaries on some of the most useful plugins available for real-time monitoring, debugging, and site health checks.
Let me know if you’d like me to expand this introduction or help organize the rest of your research notes!
10 Day Analytics By Golemiq
0 Day Analytics is a WordPress plugin that helps developers and site admins monitor and debug their sites in real time. It shows PHP errors, scheduled tasks, database status, outgoing emails, HTTP requests, hook activity, and site health—all in one place.
Unlike other monitoring tools, 0 Day Analytics runs entirely within your WordPress site and does not send data to third parties. All features are optional and built for performance.
Plugin Link: https://wordpress.org/plugins/0-day-analytics/
2Display Environment Type By Stoil Dobreff
WordPress 5.5 lets you set different environment types (like development, staging, or production). This plugin shows your site’s environment type in the admin bar and on the dashboard.
For more control, such as setting the environment from the WordPress admin (if wp-config.php is writable), try the author's other plugin, 0 Day Analytics.
Recommended Plugin:
0 Day Analytics – It gives detailed insights into errors and how your site is running. It also includes tools to manage Cron jobs, transients, the database, code snippets, emails, and plugin versions.3Add Custom Header Images By Andy Fragen
4Add Custom Codes – Insert Header, Footer, Custom PHP Snippets, CSS, Javascript By SaifuMak
Easily add custom code to your WordPress site. You can insert PHP, HTML, CSS, JavaScript, Google Analytics, Search Console tags, or other code snippets as needed.
Plugin Link: https://wordpress.org/plugins/add-custom-codes/
5WP Add Custom CSS and JS By D3 LOGICS
6Simple Custom CSS and JS By SilkyPress
Easily customize your WordPress site by adding custom CSS and JS code without editing theme or plugin files. Perfect for making quick design changes.
Plugin Link: https://en-ca.wordpress.org/plugins/custom-css-js/
7Simple Maintenance Redirect By PluginRx
8Advanced Redirect Manager 301 By NewCodeByte
9Advanced REST API DevTools By Tejas Gajjar
Disclaimer - Essential WordPress Debugging Plugins: A Research Guide
The information shared in this post, “Essential WordPress Debugging Plugins: A Research Guide,” is provided by the author and intended for general guidance only. While Nowyme strives to ensure everything is accurate and up to date, we can’t guarantee that all details, products, or services mentioned will always be complete, reliable, or suitable for your needs. Please use your own judgment and double-check anything that matters to you before making decisions based on this content.
