Custom Translation Files
Let’s say, you have translated a plugin or theme and have a mo file ready. But the plugin author does not respond to your submission offer or you cannot contact the author for whatever reasons.
Consider an alternative
Custom Translation Files shows warning signs in 2026 — compare the alternatives below before installing. Was last updated 8 years ago, and scores 21/100 on our health check.
- Small user base (<10 active installs)
- Very few reviews so far
- No update in 7 years
- Only tested up to WordPress 4.9 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Custom Translation Files stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| localization | >100 |
| mo | >100 |
| text domain | >100 |
| translate | >100 |
| translation | >100 |
About Custom Translation Files
From the official readme · v1.0.0Description
Custom Translations
Let’s say, you have translated a plugin or theme and have a mo file ready. But the plugin author does not respond to your submission offer or you cannot contact the author for whatever reasons.
In this case, you may be able to upload the file in the location that the plugin uses within the plugin’s directory but this is not ideal because when it is updated, your translation file will be gone. You have to repeat doing it.
This plugin solves this problem by allowing you to upload the mo file and lets WordPress use it.
What you need are:
- mo file (the translation file with a text domain prefix)
- text domain (usually the plugin/theme slug)
Set these in the setting page and the plugin will take care of the rest.
It’s simple and lightweight.
Installation
- Upload
custom-translation-files.phpand other files compressed in the zip folder to the/wp-content/plugins/directory. - Activate the plugin through the ‘Plugins’ menu in WordPress.
- Go to Dashboard -> Settings -> Custom Translation Files.
- Add your items there.
Screenshots
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best Custom Translation Files alternatives
All localization plugins →
FAQ
Custom Translation Files: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 10, 2026
Is Custom Translation Files free?
Yes. Custom Translation Files is free to download and use from the official WordPress.org plugin directory.
Is Custom Translation Files safe to use in 2026?
Custom Translation Files shows warning signs in 2026 — compare the alternatives below before installing. Was last updated 8 years ago, and scores 21/100 on our health check.
How many websites use Custom Translation Files?
Custom Translation Files is active on <10 WordPress websites and has been downloaded 1,450 times since it launched in October 2018. It was downloaded 45 times in the last 30 days.
Does Custom Translation Files work with WordPress 7.1?
Custom Translation Files is officially tested up to WordPress 4.9.34, while the latest release is 7.1.3. It may still work, but try it on a staging site first.
What PHP version does Custom Translation Files need?
Custom Translation Files requires PHP 5.2.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Custom Translation Files last updated?
The latest version, 1.0.0, was released on October 31, 2018 (8 years ago).
Who makes Custom Translation Files?
Custom Translation Files is developed and maintained by miunosoft.
What are the best alternatives to Custom Translation Files?
The most popular alternatives to Custom Translation Files are Polylang (800K+ installs), Performant Translations (30K+ installs) and Bogo (10K+ installs).
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