Fluent icon
Fluent icon

Fluent

 2 likes

Innovative: Natural-sounding translations with genders and grammatical cases when necessary. Locale-specific logic doesn't leak to other locales.

Fluent screenshot 1

License model

  • Free • Open Source

Application type

Country of Origin

  • US flagUnited States

Platforms

  • Self-Hosted
  • Rust
  • Python
  • JavaScript
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Features

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  1.  Translation-platform
  2.  Translator
  3.  Software localization

 Tags

  • localization
  • localization-tool

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Fluent information

  • Developed by

    US flagMozilla

  • Licensing

    Open Source (Apache-2.0) and Free product.

  • Written in

  • Alternatives

    33 alternatives listed

  • Supported Languages

    • English

AlternativeTo Category

Education & Reference

GitHub repository

  •  1,539 Stars
  •  45 Forks
  •  88 Open Issues
  •   Updated May 20, 2025 
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Our users have written 0 comments and reviews about Fluent, and it has gotten 2 likes

Fluent was added to AlternativeTo by Ian Dorfman on Apr 18, 2019 and this page was last updated Jul 12, 2022.
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What is Fluent?

Innovative: Natural-sounding translations with genders and grammatical cases when necessary. Locale-specific logic doesn't leak to other locales.

Powerful: Date, time, and number formatting. Plural categories. Full bidirectionality support. Custom formatters. Easy-to-read syntax.

Flexible: Client- and server-side. Runtime translation and re-translation. Robust error handling. JS, Python, Rust implementations. React bindings.

Extensible: Compatible with ICU and ECMA 402. Licensed under the Apache 2.0 License.

Why did we create Fluent?

Software localization has been dominated by an outdated paradigm: translations that map one-to-one to the English copy. The grammar of the source language imposes limits on the expressiveness of the translation.

We created Fluent to change this paradigm. Translators should be able to use the entire expressive power of their language without asking developers for permission. In Fluent, translations are asymmetric. A simple string in English can map to a complex multi-variant translation in another language.

Fluent makes it possible to cater to the grammar and style of many languages, independently of the source language. It happens in isolation; the fact that one language benefits from more advanced logic doesn’t require any other localization to apply it. Each localization is in control of how complex the translation becomes.

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