A Go package and command-line tool for internationalizing Go applications with pluralization and template support.
go-i18n is a comprehensive internationalization (i18n) solution for Go programs, enabling developers to translate applications into multiple languages. It combines a runtime library for message lookup with a CLI tool for managing translation files, making localization workflows efficient and scalable. The package handles pluralization for over 200 languages using CLDR rules and supports template variables and multiple file formats.
Go developers building applications that require multi-language support, such as web services, desktop apps, or command-line tools with international users. It is particularly suited for teams needing automated extraction and merging of translation files to streamline localization processes.
Developers choose go-i18n for its automation and standards compliance, as it generates code from Unicode CLDR data to ensure correct plural handling across languages while keeping the API simple and idiomatic for Go. Its integrated CLI tool for extracting and merging messages reduces manual effort in managing translation files compared to manual or less integrated solutions.
Translate your Go program into multiple languages.
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Generates code from Unicode CLDR data to handle plural rules for 200+ languages automatically, ensuring accuracy without manual implementation, as highlighted in the README's emphasis on standards compliance.
Includes goi18n command for extracting messages from Go source and merging translation files, streamlining localization processes with examples like goi18n extract and merge.
Supports JSON, TOML, YAML, or any custom format via unmarshal functions, allowing teams to choose their preferred configuration without being locked into a single format.
Uses Go's text/template syntax for named variables in messages, enabling dynamic content interpolation in translations, as shown in the PersonCats example with {{.Name}} and {{.Count}}.
Translations are loaded into the bundle during initialization (e.g., bundle.LoadMessageFile), requiring application restarts or manual reloads for updates, which limits runtime flexibility.
The goi18n CLI must be installed and managed separately, adding an external dependency to the development workflow that may complicate CI/CD pipelines or lightweight setups.
The README warns that community translations of documentation are not maintained by the author and may be inaccurate, posing reliability issues for non-English users seeking guidance.