Open-source translation platform that plugs into your i18next setup
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30,000 hosted words and 3 seats
on the free plan.
Trusted by great companies. Used by 40 000+ users.










One plugin, your i18next stays
Install the plugin, wrap your i18next instance, keep everything else. Your existing keys and JSON files import into Tolgee in one go.
> npm install @tolgee/i18next
What changes, and what does not
Nothing changes in your components
useTranslation, t(), Trans, namespaces and plurals work exactly as before. Tolgee sits under i18next, not in front of it.
Import what you have
Bring your existing JSON files in. Keys, namespaces and languages come over as they are.
Translations stop living in git
Edit, review and translate in the platform. Pull the JSON back into your build with the CLI, or load it at runtime.
CLI for CI
Push new keys from code, pull finished translations before a build. One command each.
Works with react-i18next and plain i18next
Same plugin for both. Next.js and other frameworks on i18next work too.
Open source, no lock-in
Apache-2.0 licence, self-hostable. Export back to plain i18next JSON any time, so you can leave the way you came.

QuickFit app
Workouts that fit your schedule, goals, and lifestyle.
Workouts that fit your schedule, goals, and lifestyle.

Quick translation
Homepage-subtitle
Workouts that fit your schedule, goals...

Entrenamientos que se adaptan a tu…

My app
Learn more
Start now
Quick translation
Button_key_name
Start now

My app
Learn more
Start now
Open source, self-hostable, no lock-in
Apache-2.0 licence, 4 000+ stars on GitHub. Run it on our cloud or on your own servers. Import and export any time.
Maurizio Faleo
Founder, Splital
You don't need a tutorial. You can just open it, explore the interface, and everything is clear.
FAQ
How do I add new keys?
You can add new keys in the Tolgee Platform using the Native SDKs, CLI, or REST API. For JavaScript frameworks like React, Angular, Vue, etc, we recommend adding keys using in-context editing, which is part of the Native SDKs.
How can I handle plurals?
We recommend using the ICU message format for pluralization. It enables you to render the correct plural forms in every known language.
E.g.
The `few` variant in the example above is not required in English. However, in the Czech language, providing this form is necessary to display a grammatically correct string for any number.
ICU message format handles this for you.
Tolgee Platform visualizes plurals so users, like translators, do not have to face the ICU syntax.
Tolgee Platform can export visualized plurals to various file formats supporting pluralization, like .po, Ruby .yaml or i18next.
Which machine translation providers are supported?
Tolgee currently supports
DeepL
Google Translate
Amazon Translate
Microsoft Cognitive
How can product managers, designers or other non-developer team members edit the strings?
Team members who care about precise wording can reliably edit the strings directly inside the product using Tolgee Native SDKs and its in-context editing feature.
Users can open the in-context edition dialog by alt+clicing the string in the development mode app.
Even live production applications can be turned to development mode using the Tolgee Chrome plugin.
Such an edit is very simple and reliable because the user knows what string is edited and that they're not editing a different string. Also, they don't have to search for the string in the source code, localization files, or huge localization data sets.
Is my application dependent on Tolgee Servers?
No. In a production environment, you should not use Tolgee as a source for localization data or leak your API key this way.
Instead, you should use data exported as static assets or Content Delivery (CDN).
How can I export the data for production?
You can export the data
using the Tolgee Platform UI
using the CLI
using the REST API
or you can publish the data to the CDN
Is my API key exposed in the production?
When your app is live in production, there is no need to use the API key. Your app does not fetch data from Tolgee REST API; instead, it fetches data from static assets or Content Delivery (CDN).
You should never leak your API key. That's why developers should store the API keys in environment files (.env) in the .gitignore file.
What formats are supported by Tolgee?
Tolgee supports all significant formats storing localization data such as JSON, XLIFF, .strings, .arb, .po and many more. Read about all supported formats here.
What's the difference between development and production mode?
When running your app in development mode with the Tolgee Native SDKs, localization data are fetched from the Tolgee REST API. You can edit the strings using the in-context tools, generate screenshots or review translations.
On the other hand, in production mode, Tolgee uses static assets or data published to Content Delivery (CDN). In production mode, no one can modify the app's strings unless they provide their API key using the Tolgee Chrome plugin.
Can I use strings created for web app for mobile and other apps?
Yes. When conversion to Tolgee ICU placeholders is enabled, you can reuse the exact data for any supported platform.
For example, you can use data created for web applications for your iOS or Android mobile app and vice versa.
How can I automate exporting data from the Tolgee Platform?
You can use your favorite CI/CD tool, such as GitHub Actions or GitLab CI/CD, while embracing Tolgee CLI's pull command or Tolgee REST API's export endpoint to automate data exporting.
Try it on your i18next project this week
Not sure it fits? Write to info@tolgee.io or book a call.

