How to Fix the WordPress White Screen of Death (Step-by-Step 2026 Guide)

The WordPress White Screen of Death (WSOD) is one of the most common — and most panic-inducing — issues site owners face. The screen goes blank, no error, no admin, nothing. The good news: 9 out of 10 cases come down to one of four root causes, and almost all of them are fixable in under 30 minutes.

1. Enable WP_DEBUG to see the real error

Edit wp-config.php and set WP_DEBUG to true along with WP_DEBUG_LOG. This writes errors to wp-content/debug.log so you can see exactly which plugin or theme file is failing.

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);

2. Increase PHP memory limit

The most common WSOD trigger is exhausting PHP memory. Add this to wp-config.php above the 'stop editing' line:

define('WP_MEMORY_LIMIT', '256M');

3. Disable all plugins via FTP

Rename /wp-content/plugins to /wp-content/plugins_off. If the site comes back, rename it back and disable plugins one by one to find the culprit.

4. Switch to a default theme

Rename your active theme folder. WordPress will fall back to Twenty Twenty-Four. If the site loads, you've isolated the theme.

When to call a developer

If you have file editor access blocked, no FTP credentials, or the WSOD persists after the four checks above, it's usually a corrupted core file or a database connection problem — both safer to hand off to someone experienced.