Every WordPress user knows the importance of images on their website. They represent us, our brand, our blogs, our entire online identity. This is why it becomes really frustrating when you suddenly can’t upload an image. In this guide, we will show you how to fix the WordPress image upload error (WordPress HTTP Error).
Whether you get errors when uploading an image or find that you can’t properly manipulate it in your blog post, it becomes such an annoying task to find the solution.
Especially if you get an upload error that makes you scour the internet and find nothing to fix it.
That is why we’ve come up with a list of the most common errors when uploading images. Consider this both a beginner’s guide, while more advanced users can see this as WordPress troubleshooting.
1) How to troubleshoot and fix WordPress HTTP error
Have you tried following the first WordPress troubleshooting step? Before trying out any of the solutions at the bottom, we advise trying this one first.
- Disable all the WordPress plugins you have installed
- Revert to the default theme
- Try uploading again.
If the upload works, that means that your issue is not with WordPress itself, since the core version allows uploads. Next, you want to slowly start reintroducing one plugin at a time to find which one is causing the issue.
Why does this fix work?
In some cases, certain plugins clash with each other. Similarly, the theme you are currently using can also be incompatible with some plugins.
Another thing to do is contact the WordPress theme developers and let them know about the issue, so they can create a fix. Most developers will be happy to help out.
Note: Before every change and alteration to the code, make sure you make a copy of the website.
2) Fix the image upload error using an FTP client
For those who are unfamiliar, FTP stands for file transfer protocol and is one of the two ways in which you can upload files to your website. Normally, you would use the second way – WordPress’s dashboard.
But, as we’ve seen, WordPress can sometimes encounter issues.
On the occasion when it displays an uploading (or other) error, you can use FTP to upload files to your website. You can also use it to troubleshoot the error.
In this article, we will access some of the WordPress files through an FTP client.
3) The WordPress HTTP error
This is the most common error a lot of users run into. It can happen with a single image, with a string of them, or the image can even upload after displaying the error window!
However, if the error persists, one of the fixes from the list might help fix the HTTP error:
a) Image files name
Oftentimes, users are unaware that a simple error in naming the file can cause an issue. For example, hyphens, apostrophes, and foreign letters prevent the image from being uploaded.
Make sure to switch your language to English and try not to use any special characters.
b) Change browsers
Quite a few people have reported that a simple browser change fixed their HTTP error when uploading. Chrome is the most common culprit, so you will want to try switching to another browser, like Opera.
c) Check the PHP version
It’s not uncommon that web hosts use only specific versions of PHP and don’t upgrade.
For example, if you’re running on 7.0, but they’re still using 5.5, you can contact your web hosting provider and see if they can help.
But if that is not an option, there is a fix you can do yourself. Try adding the following line to the .htaccessAddHandler application/x-httpd-php70 .php
Here, the “70” stands for the version you’re running, and there must be a blank space after it.
d) Increase PHP memory limit
This fix helps with more than just HTTP errors. Because the default WordPress memory limit is 40MB, it can cause the dreaded white screen of death and memory exhaustion. All three problems can be fixed by simply increasing the PHP memory limit.
Disclaimer: Check with your web host provider if this is an option, as most don’t allow users to do this on their own.
Through
.htaccess
– Use an FTP client to access the WordPress root directory
– From there, find the .htaccess file
– Put in the following code:
php_value memory_limit 256M
Through wp-config.php
– Use an FTP client to access the WordPress root directory
– Find the wp-config.php and right-click it. A drop-down menu will show up.
– Select “Code Edit”
– In the file, scroll down until you reach the following line: /*That’s all, stop editing! Happy blogging!*/
– Then, paste the following code right above that line:
define(‘WP_MEMORY_LIMIT’, ‘256M’);
Through PHP.ini
– If you have access to the PHP.ini file, paste in the following:
memory_limit = 96M
e) Optimizer plugins
Some optimizer plugins work with a small number of image formats (for example, they’ll upload .jpg images, but not .png)
If you’re using an image optimization plugin, it might be what’s causing the error, so try disabling it. If this fixes your problem, play around with the plugin’s configuration and settings.
Ultimately, you can contact the plugin developer for a more permanent fix of the error.
4) The upload_max_filesize error
This kind of error pops up when you try to upload images that are larger than the maximum upload limit. This limit of the file size is determined by WordPress itself and your server.
a) Resize images
To resize through code, you can try adding the following to your .htaccess:
### Increases the max filesize for uploads
php_value upload_max_filesize 64M
php_value post_max_size 64M
php_value max_execution_time 300
php_value max_input_time 300
You can also resize the image through your operating system’s image editor (Paint for PC, and Preview app for Mac), or the image optimization websites such as
b) Sort out Imagick
Imagick is a PHP extension that WordPress uses to create and modify images. To upload images faster, Imagick uses several CPU threads at once while processing them.
However, some providers allow only single-threaded tasks. This creates conflict with the extension.
To fix this issue, do the following:
– Access .htaccess file in your root folder
– Insert SetEnv MAGICK_THREAD_LIMIT 1 to the top of the file.
5) The ‘Unable to create directory’ error
An error like this can come from several reasons, but they all have the same issue. The problem is with the file permissions in your upload folder.
For example, if you’ve recently changed a hosting provider, your permissions may still be linked to your old provider.
To fix this error, do the following:
– Use an FTP client to access the WordPress root directory
– Locate the /wp-content folder
– Right-click on the uploads folder
– From the drop-down menu, choose “Change Permissions”
– Input 7-4-4 in the boxes (or 7-5-5 if that fails)
If you also happen to get the “Upload: failed to write file to Disk” error, these steps above can solve the issue.
6) Mod security
Mod security is a firewall that acts as an external layer of security for your web page.
As such, it limits the number of tasks that can be done by users. And while it provides safety for your online content, it also causes several errors.
One of them, you guessed it, is interfering with your image upload. But fear not, there is a way to fix it.
– Use an FTP client to access the WordPress root directory
– Locate your wp-admin directory
– Make an .htaccess file inside it
– Input the following text lines in the file:
SecFilterEngine Off
SecFilterScanPOST Off
What this does is it disables the mod security and gives you access to uploading images.
7) Contact your hosting company
It sounds too simple to be true, doesn’t it?
But it will actually help much better in some cases. Because if all of the above advice fails, your best shot is to contact your WordPress hosting provider.
Not to mention they’ll provide you with a host of useful information: the php version they are running, the image file size limits, etc.
Sometimes, sending your hosting company an email asking for a bug fix is a quicker fix.
Conclusion
Image uploading errors in WordPress are abundant. And while the more frustrating task is to find out what caused the error, we hope you’ll find some help in the solutions we provided.
Our last piece of advice would be to scour the internet and ask around forums, as there is no unique problem. Someone out there went through the same bug, and they found a solution.
So be persistent, dig through our websites, and don’t lose hope. We hope this article helped you fix the WordPress image upload error.
FAQ
Why does a WordPress Image Upload Issue happen suddenly?
A WordPress Image Upload Issue can appear after plugin updates, theme changes, server migrations, or PHP version conflicts. Even small configuration changes may affect file permissions, memory limits, or security settings, which directly impact WordPress Image uploads.
How can PHP memory limits affect WordPress Image Upload?
Low PHP memory limits can prevent WordPress Images from processing correctly, triggering HTTP errors or failed uploads. Increasing the memory limit via wp-config.php or .htaccess often resolves performance-related WordPress Image Upload problems.
Does file naming impact WordPress Image Upload success?
Yes, special characters, apostrophes, or non-English letters in filenames can cause a WordPress Image Upload Issue. Using simple, lowercase file names with hyphens improves compatibility and reduces upload errors.
Can hosting restrictions cause WordPress Images to fail uploading?
Absolutely. Hosting providers may limit upload_max_filesize, execution time, or restrict certain PHP extensions like Imagick. These server-level limitations commonly trigger WordPress Image Upload errors and require hosting support intervention.
What is the safest way to troubleshoot a WordPress Image Upload Issue?
Start by disabling plugins, switching to a default theme, and testing uploads. If the issue persists, check file permissions, memory limits, and server settings. This structured troubleshooting method isolates the root cause of WordPress Image Upload problems efficiently.
