Query Viewer | WP Debug Toolkit

Performance Insights

Fast, Lightweight Database Monitoring

Get deep visibility into your site's database performance. Identify slow plugins, inefficient queries, and bottlenecks with a low-impact query monitor tool

Low database impact (Filesystem Logging)

Identify slow plugins & N+1 queries instantly

Live monitoring dashboard for real-time traffic

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Key Features

Query Visibility
Without the Overhead

Standard monitoring tools often store their data in the WordPress database itself. This adds load to the very system you are trying to optimize. The Query Viewer takes a different approach. We log query data directly to the filesystem, giving you accurate metrics without adding extra strain to your database.

Performance Bottlenecks
// Find What's Slowing You Down

Spot the exact queries that are dragging down your load times. The slow query tracking automatically flag configurable slow queries with built-in component attribution and N+1 detection so you know exactly which plugin, theme, or core function generated the query.

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Live Monitoring
// Database Activity in Real-Time

Watch your database activity in real-time as you browse the site. Perfect for monitoring activity during checkout flows or complex actions. Queries are grouped by page load, allowing you to see the total "database cost" of a single visit.

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Technical Insights
// Deep Analysis for Developers

Expand any query to see the full PHP execution path. Know not just what query ran, but where it came from. The viewer analyzes SQL structure (JOINs, subqueries) to rate query complexity, and export your logs in CSV or JSON.

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Engineered for Production
// Safety Valve & Smart Storage

The system automatically rotates log files when they reach a size limit, ensuring your disk never fills up. Queries are logged to JSON files rather than the database, and we include a smart db.php drop-in that captures execution time and memory usage with precision. Complex SQL is also auto-formatted for readability.

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Rob Marlbrough

@Press Wizards

Bought it, looks great... I’d also love for it to enable or disable WP_DEBUG for me via a toggle. It’s awesome that it works even when there’s a fatal error.

Tom DeBello

Developer

No-brainer, picked this up right away.

Benjamin Jonhson

@Stellar Designs

This is one of those tools you never knew you needed until you saw it. It's a true game changer for me and my development team. We'll be using this a lot, and I expect many people will too

Rob Marlbrough

@Press Wizards

Bought it, looks great... I’d also love for it to enable or disable WP_DEBUG for me via a toggle. It’s awesome that it works even when there’s a fatal error.

Rob Marlbrough

@Press Wizards

Bought it, looks great... I’d also love for it to enable or disable WP_DEBUG for me via a toggle. It’s awesome that it works even when there’s a fatal error.

Shaun Smith-Roberts

Agency Owner

I'm not a dev really just, I suppose a 'Facilitator' for my customers but I understand how things work and I love learning more stuff, your plugin has helped facilitate that and more!

Its cut down my workload by probably 20% so well done

William Cromwell

Agency Owner

This plugin quietly became one of my must-haves. I use it for my dev work, and it helps me catch issues rightaway as they happen. Total time-saver.

Rob Marlbrough

@Press Wizards

Bought it, looks great... I’d also love for it to enable or disable WP_DEBUG for me via a toggle. It’s awesome that it works even when there’s a fatal error.

Peter Needham

Developer

Yep - nice one - Got it. - The log view being able to be used when the site has white screened is a MUST HAVE feature - especially for those of us doing quite a bit of PHP work..

David Dennison

@Searchriot

You can see what plugins are constantly throwing errors. Even if they aren't affecting anything, lots of errors might tell you that you need to find a replacement - before it does affect something. $60 well spent! And it's a lifetime deal! Happy building

Denis Guerrero

Developer

Just enabling WP_DEBUG without FTP is already a win for me. Getting the logs in a beautiful, clear UI with all the other bells and whistles is just a huge bonus. I'm not even a developer and this is saving my bacon on a daily basis

Rob Marlbrough

@Press Wizards

Bought it, looks great... I’d also love for it to enable or disable WP_DEBUG for me via a toggle. It’s awesome that it works even when there’s a fatal error.

Slow Query Detection

Instantly spot database bottlenecks. Queries exceeding your threshold are automatically flagged for review.

N+1 Pattern Alert

Identify inefficient loops running the same query hundreds of times. A silent performance killer, now made visible.

Low-Overhead Logging

File-based logging has a low impact on your database. Monitor production sites without slowing them down.

Component Attribution

Know exactly who to blame. See if a query came from Core, a specific Plugin, or your Theme at a glance.

Keyboard Shortcuts

Use quick keys to view stack traces, copy SQL, or focus the search bar without touching your mouse.

Instant File Viewer

Don't just see the query, see the code. Use the viewer to inspect the exact PHP lines that triggered the database call.

Live Dashboard

Watch queries appear in real-time with dashboard auto-refresh. Perfect for monitoring checkout or complex flows.

Complexity Scoring

Not all queries are equal. We analyze SQL structure (JOINs, subqueries) to rate query complexity on a 1-10 scale.

Data Export

Need to share with a team? Export your query logs to CSV, JSON, or TSV for external analysis or reporting.