Do you struggle to localize your Ruby on Rails apps?

LocaleData is a simple translation management platform, which can help you collaboratively work on your YAML translation files even with your non-technical teammates.

“LocaleData helps me with translations of my Ruby on Rails applications. I don't need to go into code anymore and care about syntax and all that sorts of things. With LocaleData I was able to import my YAML files, translate the content and easily export everything. One thing that LocaleData does really well is the easy-to-use and user friendly interface. LocaleData organizes all the translations into a tree/hierarchy which allows to navigate through very easily.”

Marek Dlugos
Marek Dlugos, Digital Product Designer

How does it work?

step 1

1. Import

Start by uploading all your existing project translations in YAML file format.

step 2

2. Translate

Invite teammates and translators to collaboratively work on your translations.

step 3

3. Export

Download your finished translations in YAML file format (and go to step 2).

Why to choose LocaleData?


Simple integration

Use the LocaleData gem to download translations directly into your Ruby on Rails projects using the provided command line interface. Just create a project and follow the step-by-step instructions.

project members

Easy collaboration

All LocaleData projects are private. Each project can have multiple collaborators with different roles and access permissions. You determine who can see and edit your translations. Just add admins, developers, translators and configure their access rights.


No more syntax errors

LocaleData provides you easy import/export functions for your YAML files. Use a simple editor with many predefined languages to manage your locales. LocaleData also supports multiple translation types, such as simple text, plural forms, numbers, booleans, symbols, arrays, ...

bulk editing

Bulk editing

Do you need to change the path of many translation keys at once? No problem, just use the bulk editing feature and enjoy the results.

What about pricing?

All plans include unlimited projects, members and languages. The only limit is the total number of translation keys - phrases that can be translated into multiple languages.

Special time-limited pandemic offer: 50% off all subscription plans!


19 €
9 € / month
2.000 translation keys
Unlimited projects
Unlimited languages
Unlimited seats


49 €
24 € / month
10.000 translation keys
Unlimited projects
Unlimited languages
Unlimited seats


99 €
49 € / month
50.000 translation keys
Unlimited projects
Unlimited languages
Unlimited seats

All prices are inclusive of VAT. Upgrade, downgrade or cancel anytime.

Frequently asked questions

What is a translation key?
A translation key is a phrase that can be translated into multiple languages using LocaleData.

How many projects, members and languages does my plan include?
All plans include unlimited projects, members and languages. The only limit is the total number of translation keys you can have in your projects.

Can I use LocaleData for free?
Yes, if you only need to work on projects owned by other users. If you want to create your own projects, you will need to subscribe to a paid plan.

Can I upgrade or downgrade later?
Yes, you can upgrade or downgrade anytime. This action will take effect immediately and your subscription costs will be prorated. The unused portion of your billing cycle will be applied as a credit. The cost of the new plan for the rest of the billing cycle will be added to your next billed amount.

What will happen to my data if I cancel my subscription?
After your subscription expires, you will not be able to continue working on the projects you own. Your data will not be deleted, so you can easily resubscribe later.

Can I use the remaining time after I pause or cancel my subscription?
Yes, pause and cancellation actions become effective at the end of the current billing period. You can use all of the remaining time to work on your projects.