Hands-on tested · Updated 2026
Completely free - no payment needed.
Where it falls short
May require some programming knowledge to configure
ai-i18n is a GitHub Action-based automatic translation tool that uses LLM providers to translate i18n files, supporting glossary, change detection, and reviewed translation preservation. The free version offers convenient translation services, suitable for programmers who need to automatically handle multilingual files. In practical use, ai-i18n is easy to operate and can effectively improve translation efficiency, especially suitable for internationalization work in large projects. In summary, ai-i18n is a comprehensive and easy-to-use translation tool, a good choice for teams that frequently...
From registration to actual use - step by step
Visit the GitHub repo to clone the project. ai-i18n is a tool that uses AI to auto-translate i18n files, supporting multiple frontend framework i18n formats.
Visit GitHub RepoSpecify the source language (e.g., en) and target language list (e.g., zh, ja, ko) in the config. Fill in the LLM API key and select the translation model.
Use GPT-4o-mini for translation—cost-effective with quality sufficient for most scenarios.
Run the translation command. The tool reads source language JSON/YAML files, calls AI to translate to all target languages, keeping keys unchanged and only translating values. Supports incremental translation for new keys only.
Commit current files before translation to compare AI results and rollback unsatisfactory translations.
Configure ai-i18n in GitHub Actions to auto-trigger translation and create PRs when source language files change. The team reviews translation quality before merging, enabling continuous i18n delivery.
Schedule native speaker reviews for key market languages; AI translations may not reach native fluency.
💡 ai-i18n is a software tool, not an AI model. To experience its full features, please visit the official website. You can also add it to your workflow below.
Suitable for large projects that require automatic translation of i18n files, especially those that need to frequently update and maintain multilingual content. ## How to Use 1. Install the ai-i18n Action in your GitHub repository 2. Configure the LLM provider and i18n file path 3. Run the Action to trigger the translation
ai-i18n is a free tool. Visit the official website for detailed pricing.
View pricing →| Tool | Rating | Pricing | Best For |
|---|---|---|---|
| ai-i18n ★ | 0/5 | Free | Code |
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