How to Increase the WordPress Memory Limit for a Smoother Website Experience

Website Technical Support
Author: Leo MA
12/11/2024

Are you running into performance issues or error messages on your WordPress site that tell you to increase the memory limit? This is a common issue many WordPress users face, especially when managing large media files, using complex plugins, or running resource-intensive themes. The good news is that increasing the memory limit is a simple process that involves just a few steps, and we’ll walk you through it here.

Step-by-Step Guide to Increasing the WordPress Memory Limit

Follow these easy steps to increase the WordPress memory limit directly from your site’s configuration file, wp-config.php.


1. Access Your WordPress Files

To make any changes to WordPress’s memory limit, you’ll need access to the site files. If your hosting provider has a file manager (like cPanel), you can use that to navigate to your site files. Alternatively, you can connect to your site via an FTP client like FileZilla.


2. Locate the wp-config.php File

In the root directory of your WordPress site, look for a file named wp-config.php. This file stores essential settings and configurations for your WordPress installation.


3. Open and Edit the wp-config.php File

Once you’ve located wp-config.php, double-click to open it and select the option to edit. If you’re using an FTP client, you can usually right-click the file and select “Edit” or “View/Edit.” Some file managers also have a direct “Edit” button.


4. Find the Code Area to Insert Memory Limit

Scroll down in the wp-config.php file until you find this line:

php
/* That’s all, stop editing! Happy publishing. */

This line is located near the end of the file and signals where custom settings can be added without affecting other core configurations.


5. Add Code to Increase the Memory Limit

Right above the line you found in step 4, insert the following code:

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

This line of code tells WordPress to set the memory limit to 256 MB. You can adjust this value if your site demands even more memory. However, 256 MB is generally a good baseline and works well for most sites.


6. Save the Changes

Once you’ve added the code, save your changes to the wp-config.php file. This step will ensure that WordPress applies the new memory limit settings immediately.


7. Confirm the Memory Limit Increase

To confirm that the memory limit has been updated, you can check your WordPress site’s health settings, or use a server diagnostics plugin. Alternatively, just visit your site to verify that any previous memory issues or error messages have been resolved.


Troubleshooting Tips

If increasing the memory limit didn’t resolve your issue, there could be other server configurations limiting memory. Contact your hosting provider for support, as they may need to make adjustments on the server level.


Final Thoughts

Increasing your WordPress memory limit is a quick way to boost your site’s performance and prevent frustrating errors. By following these simple steps, you can ensure your WordPress site has the resources it needs to run smoothly.

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