Make Filename Lowercase
Sets uploaded media filename to lowercase.
4.8(4 reviews)
·1.0K+ active installs·Updated 7 months agoAs of April 2026, Make Filename Lowercase is a WordPress media plugin with 1.0K+ active installations and a 4.8/5 rating from 4 reviews. It has been downloaded 9.3K+ times in total. Requires WordPress 3.0.1+ and PHP false+. Available on WordPress.org since 2011. Download volume is stable this week. Top alternative: Safe SVG.
4.8/54 reviews
1.0K+active installs
9.3K+total downloads
15 yearssince 2011
Overview
Sets uploaded media filename to lowercase as filter on sanitize_file_name. Based on post at Stack Overflow asking if there is a way to “Rename files during upload within WordPress 3.0 backend”.
Created for WordPress 3.0.1+ which saves any uploaded media filename (Image, Video, Audio) as lowercase. This effectively changes the name of the file at upload if a user were to upload a file with any uppercase characters.
For instance:
- MOVIE-FILE.MOV > movie-file.mov
- Movie-File.wmv > movie-file.wmv
- ImAgEfILe.gif > imagefile.gif
- imageFile.JPG > imagefile.jpg
- ETC > etc
Note: WordPress sets file extension to lowercase. This plugin does a strtolower on the filename.
More Information
Visit the Red Bridge Internet site for more information about Make Filename Lowercase plug…
Screenshots
Ratings & Reviews
4.84 reviews
5 ★
3
4 ★
1
3 ★
0
2 ★
0
1 ★
0
Recent Reviews
Great!
by Gronix·10 years ago
Great!
Simple & effective
by andamira·12 years ago
It just works .
Great code snippet; plugin not necessary
by swinggraphics·13 years ago
It’s perfect, but I recommend downloading the plugin and just grabbing the few lines of actual code and adding that to functions.php. I’m glad it is a plugin, though, because this was certainly the easiest way of finding the needed code!
Works great with 3.4.2
by crdunst·13 years ago
Does one job, and does it well.
In my case I needed to rename images to lowercase to ensure they had unique names regardless of case. UNIX servers allow ‘MIxEdCasE.jpg’ and ‘mixedcase.jpg’, but then backing up to a windows machine creates problems with them overwriting. This plugin solves that problem, so thanks.
Download Trends
Today: 3Yesterday: 7This week: 30Period total: 1K
Compatibility
| WordPress | 3.0.1+ requiredTested up to 6.8.5 |
| PHP | false+ required |
Version Adoption
v1.0
100.0%
Top Alternatives to Make Filename Lowercase
Frequently Asked Questions
Changelog
1.0.2
- moved plugin screenshots to assets directory
- added cool header banner for plugin repository
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.