Introduction
If you see an error like this on your WordPress site:
Don’t panic. This simply means WordPress ran out of memory while trying to perform a task.
This error often appears when:
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Installing a plugin
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Updating WordPress
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Uploading large files
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Running heavy themes or page builders
Luckily, fixing it is usually quick and easy.
Why the WordPress Memory Error Happens
Every website server has a PHP memory limit. This limit controls how much memory scripts can use.
When WordPress needs more memory than the server allows, it crashes and shows the memory exhausted error.
Common causes include:
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Heavy plugins
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Poorly coded plugins
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Large media files
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Page builders
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Low hosting limits
Fix 1: Increase PHP Memory Limit (Most Common Fix)
The easiest fix is increasing WordPress memory.
Step 1: Open wp-config.php
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Log into File Manager or FTP
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Find the file:
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Add this line before:
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Save the file.
This increases WordPress memory to 256MB, which solves most cases.
Fix 2: Increase Memory in .htaccess
If the first method doesn’t work, try editing .htaccess.
Add this line:
Save the file and refresh your site.
Fix 3: Update PHP Settings in Hosting Panel
Many hosts allow changing PHP limits directly.
Look for:
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PHP Settings
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MultiPHP INI Editor
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PHP Configuration
Increase:
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memory_limit→ 256M or higher
Fix 4: Disable Heavy Plugins
Sometimes plugins use too much memory.
To test:
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Go to Plugins
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Deactivate heavy plugins like:
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page builders
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backup plugins
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analytics plugins
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Then activate them one by one.
If the error disappears, you found the cause.
Fix 5: Upgrade Your Hosting Plan
Cheap shared hosting often limits memory to 64MB or 128MB, which is very low.
If your site grows, consider upgrading to:
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Better shared hosting
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Cloud hosting
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Managed WordPress hosting
More resources = fewer crashes.
How Much Memory Does WordPress Need?
Typical recommendations:
| Website Type | Recommended Memory |
|---|---|
| Small blog | 128MB |
| Business website | 256MB |
| WooCommerce store | 256MB – 512MB |
How to Prevent Memory Errors
Follow these tips:
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Remove unused plugins
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Use lightweight themes
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Optimize images
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Keep WordPress updated
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Avoid poorly coded plugins
A clean WordPress setup runs much smoother.
Final
The WordPress memory exhausted error looks scary, but it usually means one simple thing:
👉 Your website needs more memory.
In most cases, increasing the memory limit in wp-config.php fixes the problem instantly.
Final Thoughts
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