# l10n.dev — AI Localization Agent > AI Localization Agent. Translate i18n files while preserving format, keys, and placeholders. Production-ready translations in 165 languages. Free to start. ## Product - [l10n.dev — AI Localization Agent](https://l10n.dev): AI Localization Agent. Translate i18n files while preserving format, keys, and placeholders. Production-ready translations in 165 languages. Free to start. - [Contact Us](https://l10n.dev/contact): Get in touch with us for any inquiries. ## Translation Tools - [I18N File Translation](https://l10n.dev/ws/translate-i18n-files): AI-powered localization service. Translate i18n files while preserving format, keys, and placeholders. Get production-ready translations in 165 languages. - [JSON Translation](https://l10n.dev/ws/translate-json): AI-powered localization service. Translate JSON files while preserving format, keys, and placeholders. Get production-ready translations in 165 languages. - [YAML Translation](https://l10n.dev/ws/translate-yaml): AI-powered YAML translation tool. Translate .yaml and .yml localization files online while preserving keys, nested structure, interpolation variables, and comments. Ideal for Ruby on Rails, Symfony, Vue i18n, Flutter, Spring Boot, and other YAML-based i18n workflows. - [PO/Gettext Translation](https://l10n.dev/ws/translate-po): AI-powered PO/Gettext file translation. Translate PO and POT files while preserving msgid/msgstr structure, plural forms, comments, and format placeholders. Supports WordPress, PHP, Python Django, and GNU gettext projects. - [XLIFF Translation](https://l10n.dev/ws/translate-xliff): AI-powered XLIFF translation tool. Translate XLIFF 1.2 and 2.0 files online while preserving trans-unit structure, notes, and inline elements. Ideal for Angular, CAT tools, iOS, Drupal, and enterprise localization workflows. - [Text Translation](https://l10n.dev/ws/translate-text): Translate plain text localization files online — .strings (iOS/macOS), .ini (Windows/PHP), .properties (Java), CSV/TSV, and key-value text files. AI-powered translation for mobile, desktop, and web app localization workflows. - [Markdown Translation](https://l10n.dev/ws/translate-markdown): AI-powered Markdown translation tool. Translate .md files online while preserving headings, code blocks, links, images, front matter, and all formatting. Ideal for README files, documentation sites, Jekyll, Hugo, Docusaurus, and technical writing localization. - [Linguistic Instructions](https://l10n.dev/ws/linguistic-instructions): Manage linguistic instructions to guide AI translation style, tone, and behaviour for each language pair. - [Translation Glossary](https://l10n.dev/ws/translation-glossary): Manage glossaries to enforce consistent terminology during AI translation. Generate glossaries automatically with AI, import from CSV/TSV, or add it manually. ## Documentation & Guides - [Documentation](https://l10n.dev/help): Find answers to your questions in the Documentation. L10n: AI-powered localization service. - [Getting Started](https://l10n.dev/help/getting-started): Learn how to get started with L10n: AI-powered localization service for developers and teams. - [Why AI is Better for i18n File Translation?](https://l10n.dev/help/i18n-translation-using-ai): Discover how AI-powered translation of i18n files brings new levels of accuracy and developer-friendliness to internationalization workflows. - [Why AI Localization?](https://l10n.dev/help/why-ai-localization): Discover why AI-powered localization is transforming how developers translate applications. Learn about automation, context-aware translation, support for 165+ languages, and how AI ensures consistency while accelerating global releases. - [What is Localization?](https://l10n.dev/help/what-is-localization): Learn what localization is, the difference between l10n and i18n, and how AI-powered localization can help you reach global audiences faster and more accurately. - [How to Localize OpenAPI Specifications](https://l10n.dev/help/localize-openapi-spec): OpenAPI specifications are the backbone of modern API documentation. Localizing them in multiple languages helps developers worldwide understand and integrate with your API. But translating OpenAPI specs isn't straightforward — you need to preserve structure while localizing human-readable content. - [Angular i18next](https://l10n.dev/help/angular-i18next): Comprehensive guide to implementing i18next in Angular. Learn about dynamic imports, HTTP backend, initialization, translation pipe, best practices, and how to accelerate your localization workflow with AI-powered translation. - [Pseudo-localization for Automated i18n Testing](https://l10n.dev/help/pseudo-localization): Learn how to use pseudo-localization to identify internationalization issues before translation. Automate i18n testing with the pseudo-l10n npm package to catch layout problems, encoding issues, and untranslated strings early in development. - [Automate AI Localization](https://l10n.dev/help/localization-automation): Learn how to automate your localization workflow using the ai-l10n npm package. Streamline translation for i18n files with AI-powered automation, CI/CD integration, and smart project structure detection. - [L10n Testing](https://l10n.dev/help/l10n-testing): Comprehensive guide to localization (L10n) testing for QA teams. Learn the difference between i18n and L10n testing, key aspects to test including translation quality, cultural adaptation, formats, UI layout, RTL support, and best practices for multilingual applications. - [Flutter Localization: ARB Files, Intl & Automation](https://l10n.dev/help/flutter-localization): A complete guide to Flutter localization using ARB files, the intl package, and automated translation with l10n.dev. - [Lingui.js Localization: PO Files, React i18n & Automation](https://l10n.dev/help/js-lingui-localization): A complete guide to JavaScript and React localization using Lingui.js with PO files. Learn setup, macros, pluralization, message extraction, and how to automate translations with AI-powered l10n.dev. - [React Localization with i18next](https://l10n.dev/help/react-localization-i18next): Complete guide to localizing React apps with react-i18next. Learn setup, hooks, pluralization, namespaces, TypeScript integration, SSR with Next.js, and how to automate translations with AI. - [AI Localization Agent](https://l10n.dev/help/ai-localization-agent): Learn how to configure Claude Desktop, Cursor, Windsurf, GitHub Copilot, and other AI agents with the ai-l10n MCP server for professional-grade localization — with persistent glossaries, custom tone rules, and token-efficient translation. - [Dedicated Localization Instance for Enterprise Teams](https://l10n.dev/help/dedicated-localization-instance): A private, managed instance of l10n.dev's AI localization engine, deployed in your cloud region with your database in your own infrastructure. Bring your own LLM, with format checks built for your exact i18n files. ## Legal - [Terms of Service](https://l10n.dev/terms-of-service): Read the terms of service for L10n: AI-powered localization service. - [Privacy Policy](https://l10n.dev/privacy-policy): Read the privacy policy for L10n: AI-powered localization service. Your privacy is important to us. - [Referral Program Terms](https://l10n.dev/referral-program-terms): Read the terms for the L10n Referral Program. Share your link and earn 20% commissions purchases made by your referrals. - [Affiliate Program Terms](https://l10n.dev/affiliate-program-terms): Read the terms for the L10n Affiliate Program. AI-powered localization service. - [Refund Policy](https://l10n.dev/refund-policy): Learn about our refund policy. L10n: AI-powered localization service for developers and teams.