Languine is an open source localization automation tool that uses AI to translate new and updated strings in your application's translation files automatically, keeping your app fully localized without manual translation workflows or dedicated localization platform subscriptions.
The Problem
Most localization platforms (Crowdin, Lokalise, Phrase) charge per language or per user and require uploading translation files to a managed service, setting up translation workflows, and coordinating with translators or AI translation passes separately. For fast-moving development teams, translation lag means features ship in one language and take days or weeks to propagate to others.
How Languine Solves It
Languine integrates directly into the development workflow via a CLI and GitHub Actions. When a developer adds or changes strings in the source locale, Languine detects the diff and generates AI translations for all configured target languages automatically. It writes the translated strings back to the locale files in the repository, treating translation as a code-level operation. Apache-2.0 license applies.
Key Features
- CLI-driven localization: translate new and changed strings with a single command in the developer workflow
- GitHub Actions integration for automatic translation on push or pull request
- Supports JSON, YAML, PO, and other common i18n file formats
- AI-powered translations with context-aware string handling for accuracy
- No managed localization platform required: translation files stay in your repository
Who It's For
Languine is best for development teams shipping multilingual applications who want to automate translation in the CI/CD pipeline without subscribing to a managed localization platform or maintaining a separate translation workflow for each language.
Compared to Crowdin
Unlike Crowdin, which requires uploading translation files to Crowdin's managed platform and coordinating a separate translation workflow, Languine runs in your CI pipeline and writes translations directly to your repository. Crowdin has stronger translator collaboration features; Languine is faster for teams using AI translation without human review steps.

