Saturday, May 21st, 2022

An HTTP Error While Uploading Images to WordPress: How to Find and Fix It

While running a WordPress website is often straightforward, there are some situations that can leave you scratching your head for a solution. There will be a time when you will see an HTTP error while uploading an image to WordPress. However, if you know where to look, it can be a simple solution.

In most cases, this is a generic message that means something is going wrong, and WordPress has no solution. Although it doesn’t help you at first, you can delve into WordPress’s files to find a solution.

In this post, we are going to show you some ways to fix HTTP error while uploading images to WordPress:

  1. Check out some of the basic elements of your WordPress installation and internet setup.
  2. Make sure you have optimized your image, so that you don’t hit the limits of your installation.
  3. Increase your PHP memory allowance.
  4. Switch WordPress’s image editor library to something else.

We’re going to keep things short and sweet, so you’ll want to understand how to use Secure File Transfer Protocol (SFTP) and an appropriate client. In addition, you will want to know how to navigate the WordPress file structure.

1. Do Some Simple Checks Before Proceeding

As with many other errors, you will want to make sure that an HTTP error is a permanent problem when uploading images to WordPress. Of course, if it’s temporary you can wait things out and try again in the future.

To determine this, you can do several tests:

  • The easiest solution is to wait for the problem to be resolved. This would include regular checks of the media library.
  • You can try working with the browser, like clearing the cache, or even changing the browser.
  • If you know that you have installed a new theme or plugin, this may be the cause of your error. For this case, you should deactivate those plugins or themes until you determine whether they are the cause of the error.
  • In some cases, you may need to check the file permissions of your WordPress core files. This isn’t going to be the reason in our experience, because it’s rare to change permissions unless you edit them/however, you shouldn’t dismiss it.

The goal here is to make sure that any HTTP error while uploading images to WordPress is a permanent one that needs your magic hands. Once you know this is the case, you can look into a resolution.

2. Upload a Customized Image File

This solution is a two-pronged approach. First, you’ll want to ensure (and remind yourself) your media upload settings. For security reasons, you often create ‘limits’ to help keep the size small and the potential risks to a minimum.

Once you know what those parameters are (or you set the appropriate ones), you can view the media you’ve uploaded. Most of the time, the reason for HTTP error while uploading images to WordPress is that your upload exceeds the set parameters.

The best way to solve this is to upload a more optimized image. While it may seem like you need to add an image optimization plugin and go about your day, it may not work. This is because you need to hit the server with the optimized image to prevent the HTTP error. Here are some tips to help you get the smallest file size possible:

  • Minimize the dimensions as much as you can, while keeping the quality as high as you can. A long edge of 1,000 pixels is a good default.
  • Use the correct image format. For example, photographs must use JPEG, while graphics must use PNG or the newer modern format.
  • After changing the dimensions run any image through an online optimization tool. shortpixel (50% free credit coupon) A great app, and TinyPNG is a ubiquitous, long-standing example.

Once you have all of these installed, you will have customized images that (most importantly) Will not done trigger an error.

3. Increase Your PHP Memory Limit

Since HTTP requests use PHP as the processing language, you may need to allocate more memory for those tasks.

Fortunately, this is an area we cover in a post. Fatal error Allowed memory size exhausted wordpress error. This post will show you how to increase PHP memory limit for your server and installation. Once you increase this value, you should not see any more HTTP errors when uploading images to WordPress.

4. WordPress ‘Change Image Editor Library’

For those unaware, WordPress provides some basic image editing functionality within the media library:

Editing an image within WordPress using the built-in editor.

However, this feature uses one of two different libraries: the Imagick or GD libraries. If your installation uses the first one, it may cause some memory issues regarding uploading of images. In this case, you can make a switch.

Note that you will want to use a dedicated Snippets plugin, or edit functions.php The file itself – whatever works for you – when you add the following code:

function default_editor_gd( $editors ) {
    $editors = array_diff( $editors, array( $gd_editor ) );
    array_unshift( $editors, $gd_editor );
    return $editors;
add_filter( 'wp_image_editors', 'default_editor_gd' );

Built-in WordPress editor is nice, but won’t let you edit global functions.php file – of your theme only.

Editing .htaccess to Customize Your Image Editor Library

One of the great features of Imagick is that it can use multiple processor threads to process images rapidly. However, a lot of shared hosting doesn’t allow for this, which can lead to an HTTP error when uploading images to WordPress.

To fix this, you can add a line to your site .htaccess File (if you run apache server):


This will limit Imagick to only use one processor thread. Thus, it can bypass restrictions from shared hosts, and resolve the HTTP error you see.

wrapping up

WordPress will sometimes throw an error if you try to upload an image that the platform doesn’t know what to do with. However, if you see an HTTP error when uploading images to WordPress, there are several fixes that can fix things:

  • Sometimes, it’s a simple solution. For example, you may need to wait or change browsers.
  • Your image file may be too large for your installation or server, which means you will see an error whenever you ‘maximize’ those values.
  • You may need to increase your PHP memory to accommodate media uploads.
  • In some cases, you’ll want to switch the image editor library that WordPress uses, and perhaps edit .htaccess file too.

Did any of these tips help you resolve HTTP error while uploading images to WordPress? If so, let us know which one works for you!

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