File Renaming on Upload


Have you ever had any problems uploading files with accents and some special characters to WordPress? Probably the answer is yes.

This plugin will help you fix this problem by renaming these files on upload. It will either convert these problematic characters or remove them.

Besides that, it can improve your SEO adding some relevant info to your filename, like your domain name or the post title your file is attached on.

Increase your control over your file names.

✅ Main Features

  • Remove accents and special characters from filenames on upload.
  • Rename files on upload based on post title.
  • Rename files on upload based on the Site URL.
  • Rename files on upload based on the current date.
  • Update file permalink based on file renaming.

🏆 Pro Version

Do you like the free version of this plugin? Imagine what the Premium version can do for you. Take a look at some of its features:

  • Edit filenames and permalinks manually.
  • Update old media.
  • Update media reference in post content on file renaming.
  • Rename filename extension from jpeg to jpg.
  • Update filename on post update.
  • Restrict file renaming by user role.
  • Restrict file renaming by custom post type.
  • Auto-fill file title based on filename structure option.
  • Auto-fill ALT tag.
    • Update alt based on the original filename.
    • Update alt based on the filename structure option.
    • Update alt on filename update.
    • Update alt on new attachment upload.
  • More filename rules:
    • Custom field: Rename files based on custom fields/post meta.
    • Taxonomy: Rename files based on taxonomy.
    • User ID: Rename files based on current user id.
    • User Role: Rename files based on current user role.
    • User Name: Rename files based on user name.
    • Product SKU: Rename files based on product SKU.
    • Post slug: Rename files based on Post slug.
    • Post ID: Rename files based on post ID.
    • Custom String: Rename files based on a custom string.

Ekran Görüntüleri

  • An exemple of a sanitized filename in Media Library
  • On general settings, setup how your filename will be, using the filename structure option where you have some rules at your disposal
  • Setup how the rules will work on your filename


  1. Upload the entire ‘file-renaming-on-upload’ folder to the ‘/wp-content/plugins/’ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress
  3. Start by visiting plugin settings at Settings > File Renaming


What are the available options provided by this plugin?

For now, you can choose these options:

  • Add Site url: Inserts “” at the beggining of the file name. Ex: yoursite.com_filename.jpg. It is good for your SEO

  • Post title: If you are on a post edit page called “Spiderman will leave Marvel” and you upload a jpg it will be called spiderman-will-leave-marvel-my-file.jpg. This option allows you to replace filename by post title or add the post title.

  • Remove characters: Remove any characters you want from filename

  • Datetime: You can add or replace filename by Datetime in any format you want

  • Lowercase: Converts all characters to lowercase

  • Remove accents

  • Update permalink: When the filename is changed, you can also change its permalink if you want

How does this plugin work?

It renames files on upload using the available rules. More specifically, it uses some filters provided by WordPress to handle file name sanitizing, like sanitize_file_name, sanitize_file_name_chars or actions like add_attachment

What are rules?

Rules are options to control how your filename will be. Rules are enabled on the rules tab and have to be placed on the filename scructure option

What is filename structure option for?

It’s the option where you can put your rules or any other characters you want to set how your filename will be

Are there any hooks available?

  • frou_sanitize_file_name Creates custom rules. Take a look on (Can I create a custom rule?)
  • frou_ignored_extensions Ignores extensions. Take a look on (How to ignore extensions programmatically?)

How to ignore extensions programmatically?

You can use the ‘frou_ignored_extensions’ filter to ignore extensions programmatically.
For example, if you’d like to ignore txt, js and zip extensions:

add_filter( 'frou_ignored_extensions', function ( $extensions ) {
    $extensions = array_merge( $extensions, array(
    ) );
    return $extensions;
} );

Can I create a custom rule?

Yes. It’s easy.

First, you have to create a custom rule in the filename structure option using curly braces, like {my_custom_rule}. You just have to write it, in any position you want.

Now you can use the filter frou_sanitize_file_name to create a custom function. For example, if you want to put the user id it would be something like this:

add_filter( 'frou_sanitize_file_name', function($filename_infs){
    $filename_infs['structure']['translation']['my_custom_rule'] = get_current_user_id();
    return $filename_infs;
}, 20 );

How can i contribute with code development?

Head over to the File Renaming on Upload plugin GitHub Repository to find out how you can pitch in


24 Şubat 2023
This is a nice plugin, but I encountered issues on my theme as it broke parts of my site after it renamed some of my theme and plugin files automatically. Took me time to realize it was the culprit 🙂 .
20 Temmuz 2022
I just wish there was an option to put all words with the first letter in uppercase.
18 Mart 2021 1 yanıt
Esse plugin é sensacional. Ajuda bastante no envio das imagens. Antes, eu tinha muitos problemas na hora de migrar de servidor, pois alguns fotos, acentuadas, ficavam totalmente inacessíveis na nova hospedagem. Com esse plugin, não tenho mais esse problema. Utilizo o plugin em todos os meus sites. Meus parabéns ao desenvolvedor por ter criado um plugin realmente útil.
39 incelemeyi oku

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Değişiklik Kaydı

2.5.6 – 2023/09/26

  • Tested up to: 6.3.
  • Update plugin icon, banner.

2.5.5 – 2023/06/30

  • Fix – Sanitize multiselect fields properly.

2.5.4 – 2023/06/20

  • Dev – New filter: frou_get_parent_post_title.

2.5.3 – 2023/05/18

  • Fix – PHP warning: Trying to access array offset on value of type int.

2.5.2 – 2023/05/18

  • Fix – Fields are not getting sanitized properly.
  • Dev – Improve separator logic.
  • Tested up to: 6.2.

2.5.1 – 2023/02/01

  • Tested up to: 6.1.
  • Move to WPFactory.

2.5.0 – 2022/08/12

  • Tested up to: 6.0.

2.4.9 – 2022/02/21

  • Improve “Convert characters to dash” option.
  • Tested up to: 5.9.

2.4.8 – 2021/10/14

  • Add “Max length” option for “Filename structure”.

2.4.7 – 2021/09/20

  • Fix – Both plugins can’t be active at the same time.
  • Improve composer setup.
  • Improve readme.
  • Tested up to: 5.8.

2.4.6 – 2021/07/02

  • Fix timezone warning from datetime rule.
  • Add frou_current_media_id filter.
  • Add get_current_media_id() function.

2.4.5 – 2021/06/07

  • Save original filename on new attachment.
  • Update promoting notice.
  • Improve coding standards.

2.4.4 – 2021/05/24

  • Fix truncate option when used along with post title conversion.
  • Change deploy script.

2.4.3 – 2021/03/15

  • Fix truncate option by removing max limit.
  • Tested up to: 5.7.

2.4.2 – 2021/02/25

  • Add “Accents conversion method” option.
  • Add transliterator_transliterate function as an option to convert characters.

2.4.1 – 2021/02/21

  • Tested up to: 5.6.
  • Add Gutenberg title fix option.
  • Fix composer autoload call.
  • Update readme.

2.4.0 – 2020/12/07

  • Prevent dots from extension being converted to dash in “Rules > Filename > Convert”.
  • Add new_extension parameter on frou_sanitize_file_name hook.
  • Add multiselect field on admin.
  • Tested up to: 5.5.
  • Add log to ignored file extensions.

2.3.9 – 2020/06/18

  • Disable renaming when using WooCommerce Export Products.
  • Create ‘frou_renaming_validation’ filter.
  • Fix blocking by extension.
  • Fix wrong string
  • Improve datetime option
  • Tested up to: 5.4

2.3.8 – 2019/11/26

  • Fix posttitle rule removing spaces from titles

2.3.7 – 2019/11/17

  • Fix ‘posttitle’ rule when title is formed with non latin characters.

2.3.6 – 2019/11/15

  • Fix ‘posttitle’ rule after WordPress 5.3

2.3.5 – 2019/11/13

  • Fix ‘Parameter must be an array or an object that implements Countable’
  • Tested up to: 5.3

2.3.4 – 2019/04/12

  • Fix warning on ‘upgrader_process_complete’ hook where $options[‘plugins’] are not always present

2.3.3 – 2019/04/11

  • Tested up to: 5.1

2.3.2 – 2019/02/10

  • Improve Ignored Messages field
  • Add sounds section on settings
  • Improve premium notices on admin
  • Add default ignored messages preventing empty popups
  • Improve readme

2.3.1 – 2019/01/23

  • Add filter ‘frou_filename_allowed’
  • Tested up to: 5.0

2.3.0 – 2018/11/02

  • Add more names to ignore filenames option regarding visual composer
  • Add ‘frou_after_sanitize_file_name’ filter
  • Add option to not rename files without extension trying to prevent third party compatibility

2.2.9 – 2018/07/27

  • Check if rules exist before convert filename
  • Add more names to ignore filenames option regarding visual composer

2.2.8 – 2018/04/20

  • Check if permalink option is enabled on add_attachment function

2.2.7 – 2018/03/30

  • Make it compatible with Nextgen gallery plugin

2.2.6 – 2018/03/26

  • Update translation file
  • Add persian translation
  • Config auto deploy with travis
  • Add assets on github

2.2.5 – 2018/01/30

  • Fix empty function

2.2.4 – 2018/01/26

  • Add translation to some missing strings
  • Add option to truncate filename

2.2.3 – 2017/11/27

  • Fix notice checking
  • Replace “install_plugins” permission by “edit_users”
  • Tested up to WordPress 4.9


  • Update pot file
  • Add strings to translation


  • Set transient on update


  • Open tab if hash is present
  • Improve settings api
  • Create notice asking for review
  • Create notice talking about the pro version
  • Improve plugin’s description


  • Create a filter to get the parent post id (frou_parent_post_id)


  • Create a filter to ignore filename extensions (frou_ignored_extensions)


  • Improve function to get post title, even with unsaved posts


  • Add new filter ‘frou_admin_sections’ to filter admin sections
  • Improve settings api
  • Update tested up to
  • Restrict settings to administrators only


  • Add new option to convert characters to dash


  • Fix conflict on WeDevs settings API libraries


  • Update Settings API class


  • Start the plugin after plugins_loaded hook
  • Fix github link
  • Improve readme


  • Add new option to ignore filenames
  • Fix conflict with sitemap.xml generated by All in one SEO pack


  • Add new option to remove non ASCII characters


  • Solve more conflicts with github updater plugin


  • Fix datetime option fatal error on update() boolean


  • Solves more conflicts with github updater plugin


  • Ignores more basenames (‘option_page’, ‘action’, ‘wpnonce’, ‘wp_http_referer’, ‘github_updater_repo’, ‘github_updater_branch’, ‘github_updater_api’, ‘github_access_token’, ‘bitbucket_username’, ‘bitbucket_password’, ‘gitlab_access_token’, ‘submit’, ‘db_version’, ‘github_updater_install_repo’) when there is no extension provided to solve more conflicts with github-updater plugin


  • Ignores some basenames (‘path’, ‘scheme’, ‘host’, ‘owner’, ‘repo’, ‘owner_repo’, ‘base_uri’, ‘uri’) when there is no extension provided. It solves conflicts with github-updater plugin


  • Improve description
  • Add option to ignore renaming for some filename extensions
  • Add new screenshot
  • Remove portuguese and german translation packs from languages folder


  • Improve Portuguese translation
  • Add German translation


  • Fix autoloader bug on linux environments


  • Recreate the plugin with some new options


  • Fix bug where site url should be home url instead


  • Added an option to renames files based on post title
  • Fixed a bug where some strings were not properly removed from site url


  • Added an option to remove string parts from url


  • Admin page class renamed


  • Initial release