PluginShield uses true filesystem isolation and binary search to identify the exact plugin causing your WordPress problem — in minutes, not hours. Plus Pro tools that no other plugin offers.
How it works
Binary search cuts through the noise. Instead of disabling plugins one by one, PluginShield halves your suspects at each step. And if no plugin is guilty — it'll test your theme too.
Tell PluginShield what's broken. Optionally include the active theme as a suspect.
Temporarily disables half using true filesystem renaming — not just option flags.
Open your site and confirm: is the problem still there, or is it gone?
Each answer cuts the suspects in half. The math does the work for you.
All plugins restored. One culprit named — plugin or theme. Community warned.
Why PluginShield works
Every other conflict detection plugin has a critical flaw: they toggle WordPress option flags to "simulate" deactivation. But plugins can ignore those flags — and often do.
PluginShield renames the plugin directory so PHP cannot find the files at all. This is identical to manually deactivating via SFTP — the method that always works.
Other tools — flag-based (unreliable)
// Sets an option — plugin can ignore this
update_option('active_plugins', $filtered);
// ❌ Plugin's own init() already ran
// ❌ Hooks are already registered
// ❌ Doesn't work for must-use plugins
PluginShield — filesystem isolation (always works)
// Renames the actual directory
rename('woocommerce/', 'woocommerce__ps_isolated/');
// ✓ PHP cannot find woocommerce.php
// ✓ Zero code from that plugin can run
// ✓ Identical to SFTP deactivation
Everything you need
Free conflict detection that actually works, plus Pro features no other plugin offers — from pre-update risk scoring to silent PHP error attribution.
Free Forever
Finds 1 culprit from 32 plugins in just 5 steps. Mathematical certainty, not guesswork.
Renames plugin directories so PHP literally cannot load them. Works when all other tools fail.
Only your admin session is affected. Visitors see the full live site throughout the scan.
Once all plugins are cleared, PluginShield can test your active theme too. Many conflicts are plugin-theme, not plugin-plugin.
After finding a culprit, submit it anonymously. See conflict plugins reported by other PluginShield users worldwide.
Every scan result is logged. Search history, review past culprits, and track recurring issues over time.
Pro & Agency
Test plugin updates before they go live. One-click commit or rollback. Eliminate update anxiety forever.
Before you update, PluginShield pulls changelog keywords, support thread spikes, and rating drops. Returns a 1–5 risk score: "High risk — 34 new threads in 7 days."
Flags abandoned plugins, untested compatibility, PHP mismatches, and plugins removed from the repo entirely.
Silently logs PHP errors and warnings in the background and attributes them to the specific plugin responsible. "WooCommerce generated 14 PHP warnings this week."
Shows what database tables and wp_options each plugin created — and flags exactly what gets left behind after deactivation.
Get notified when issues are detected. Schedule automatic health checks daily, weekly, or monthly.
The honest comparison
We researched every existing solution. They all share the same fundamental flaw — and none of them go beyond basic conflict detection.
Free to install
Install the free plugin from WordPress.org. No account required. No credit card. Works immediately.