---
title: "Enabling ICO File Uploads in WordPress"
source: "https://docs.nexcess.com/software/kadence/enable-ico-file-uploads/"
description: "By default, WordPress restricts the upload of certain file types, including .ico files, for security reasons. If you’re unable to upload an .ico file to your si…"
vertical: "Software"
area: "Kadence"
date: "2025-10-07"
last_modified: "2026-07-02"
---

# Enabling ICO File Uploads in WordPress

By default, WordPress restricts the upload of certain file types, including `.ico` files, for security reasons. If you’re unable to upload an `.ico` file to your site, you can enable support for it using one of the methods outlined below.

Using a Plugin:

- Install and activate a plugin designed to enable support for additional file types. A common example is “[Enable SVG, WebP, and ICO Upload](https://wordpress.org/plugins/enable-svg-webp-ico-upload/)” or similar plugins.
- After activation, navigate to the plugin’s settings to ensure ICO file uploads are enabled.

Modifying wp-config.php:

- Access your site’s files via FTP or your hosting provider’s CPanel.
- Locate the `wp-config.php` file in the root directory of your WordPress installation.
- Open the file for editing and add the following line of code before the line that says `/* That's all, stop editing!Happy publishing.*/`:

```
    define( 'ALLOW_UNFILTERED_UPLOADS', true );
```

Adding ICO Support in functions.php (using Code Snippets):

- To enable ICO file uploads in WordPress [using a code snippets plugin](https://docs.nexcess.com/software/kadence/blocks/add-custom-filter-or-function-with-code-snippets/) like “Code Snippets” or “WPCode,”. 
    - **Install and Activate the Code Snippets Plugin:**
        - Navigate to Plugins > Add New in your WordPress dashboard.
        - Search for “[Code Snippets](https://docs.nexcess.com/software/kadence/blocks/add-custom-filter-or-function-with-code-snippets/)” or “WPCode” and install and activate the desired plugin.
    - **Add a New Snippet:**
        - Go to Snippets > Add New (or the equivalent menu item for your chosen plugin).
        - Give your new snippet a descriptive title, such as “Allow ICO File Uploads.”
    - **Insert the Code:**
        - Copy and paste the following PHP code into the snippet content area:
    - **Save and Activate the Snippet:**
        - Save the snippet.
        - Ensure the snippet is activated. Most code snippet plugins have a toggle or checkbox for activation.

```
    function my_custom_mime_types( $mimes ) {
        $mimes['ico'] = 'image/vnd.microsoft.icon';
        return $mimes;
    }
    add_filter( 'upload_mimes', 'my_custom_mime_types' );
```

After completing these steps, you should be able to upload `.ico` files through the WordPress Media Library without encountering errors related to file type restrictions.