How to Fix the 413 Request Entity Too Large Error

The “413 Request Entity Too Large” error arises when the data you are trying to send to a server exceeds its allowed upload limit. This error can be encountered when trying to upload files online. It signifies that the file you are attempting to upload exceeds the maximum size limit set by the server. This can be fixed through client and server perspectives.

In this post, we will discuss what is the 413 Request Entity Too Large error and how to fix the “413 Request Entity Too Large” error divided into client-side and server-side solutions. Later, we will discuss how to fix 413 errors in Apache and Nginx.

What is 413 Request Entity Too Large

Before diving into solutions let’s understand the root of the problem. The server you are interacting with has a pre-defined limit on the amount of data it can handle in a single request. This limit often measured in megabytes is set to prevent overloading the server and ensure smooth operation. If your upload or submission exceeds this limit you will encounter the 413 error message.

Common Causes of the 413 Error

The following are the common causes related to 413 errors on the website:

1. Server Upload Limits: Every server has a pre-defined maximum upload size limit. Trying to upload a file larger than this limit triggers the error. Submitting forms with large file attachments exceeding the server’s limit.
2. Content Management System: Platforms like WordPress come with default upload size limits which might be smaller than what you need. Exceeding these defaults can cause the error even if the underlying server allows larger files.
3. Server Misconfiguration: In rare instances, the error might come from incorrect server configuration even though the intended file size limit is higher.

Solutions to fix 413 Request Entity Too Large Error

When your website fails to load it comes and contains “413 Request Entity Too Large Error”. The following are the solutions described for the different scenarios:

Client Side Solutions

1. Reduce File Size: This is the most straightforward approach. Compress images and videos using software or online tools. Consider using alternative smaller file formats if possible.
2. Split Large Files: If dealing with very large files consider splitting them into smaller chunks and uploading them individually. This might require specific software or online services depending on the file type.
3. Check for Updates: Ensure your software, browser, or application is updated to the latest version. Updates often address compatibility issues and may resolve the problem.

Server Side Solutions

1. Increase Upload Limit: This involves modifying server configuration files to allow larger uploads. However, exercise caution as increasing the limit excessively can pose security risks and impact server performance. Common server software like Apache and Nginx have configuration directives to adjust upload limits.
2. Check Server Capacity: If increasing the limit is not feasible consider upgrading your server capacity to accommodate larger file uploads.
3. FTP Client: Uploading files directly through an FTP stands for a File Transfer Protocol client like FileZilla can bypass size limitations imposed by web browsers.

Fixing 413 Errors on Apache and Nginx

The amount of memory you need will depend on the size and complexity. If you have a small business website you may be able to get away with a memory limit. However, if you have a large website you may need to increase the limit.

Using Apache

1. Editing httpd.conf: Locate the PHP section within the httpd.conf file which is usually found in /etc/apache2/. Look for directives like post_max_size and upload_max_filesize. Increase their values to a suitable size for your uploads. Save the file and restart Apache.
2. Using a .htaccess file: If you have control over individual directories create a .htaccess file in that directory and add the same line as you find in httpd.conf file.

Using Nginx

1. Modifying nginx.conf: Edit the nginx.conf file which is located in /etc/nginx/. Find the server block for your website and look for the client_max_body_size directive. Change its value to your preferred upload size. Save the file and restart Nginx.

Content management platforms like WordPress, which is designed in the PHP language require a certain amount of memory to run properly and if the PHP memory limit is too low you may experience problems. Check out our guide on how to increase the PHP memory limit in WordPress.

Important Notes

Following are the important notes related to 413 request entity too large error:

• Check for server instructions: Many websites or online services might provide specific guidance on handling file size limitations in their help sections.
• Check Server limitations: Even after increasing the upload limit be aware of not exceeding reasonable file sizes to avoid overloading the server and impacting other users.
• Server Side Error: The error might originate from the server itself experiencing temporary issues or misconfigurations.

Conclusion

By understanding the causes and exploring the solutions outlined above you can effectively fix the “413 Request Entity Too Large” error and ensure smoother online interactions. The ideal solution depends on the specific scenario and your level of access. Client-side solutions are often easier to implement while server-side solutions require administrative privileges and technical expertise.

FAQ