Overview
Intlayer is a code-first internationalization toolkit for modern web applications. It lets developers define translations close to the components that use them, generate type-safe dictionaries, and manage multilingual content through a visual editor or optional CMS.
The product is positioned as an open-source and self-hostable alternative to translation management systems such as Crowdin and Lokalise. Its main difference is that translation data stays tied to the codebase instead of living only in a vendor dashboard. That makes Intlayer useful for teams that want i18n to behave like normal application code: versioned, reviewable, and compatible with CI/CD.
Intlayer also adds AI-assisted translation and content generation. For teams already using AI productivity tools, this can reduce the manual work of filling missing locale files, auditing dictionaries, and giving translators enough context to avoid literal or inconsistent translations.
Key Features
- Code-first i18n dictionaries - Translations can live next to React, Next.js, Vue, Angular, or other web app components, helping developers keep content structure close to the UI that consumes it.
- Type-safe translation workflow - Intlayer generates types for dictionaries, which helps catch missing keys and invalid translation usage during development.
- AI translation CLI - The CLI can audit, fill, and translate JSON or Markdown content with AI providers, reducing manual localization work for repeated updates.
- Visual editor - Non-developers can edit content through a visual interface while still keeping the underlying source connected to the app.
- Optional CMS and remote dictionaries - Teams can use hosted or self-hosted CMS workflows when they need collaboration, hot updates, or content management beyond local files.
- Git-centered collaboration - Intlayer is designed to sync translation changes back to the repository, reducing hidden vendor state and making review workflows more familiar for developers.
How to Get Started
- Install Intlayer - Add the relevant Intlayer packages for your web framework.
- Define dictionaries - Create content declaration files next to the components or routes that need translations.
- Configure locales - Set your default language, supported languages, and framework integration in the Intlayer configuration.
- Run the app - Use generated types and helpers to render localized content in the UI.
- Add AI or editor workflows - Use the CLI, visual editor, or CMS when you need to fill missing keys, collaborate with non-developers, or manage remote dictionaries.
Pricing & Plans
Intlayer's core packages are free and open source. The hosted CMS, visual editor, storage, project limits, organization seats, and AI-assisted content features are where published paid plans apply.
| Plan | Price | Best fit |
|---|---|---|
| Free | $0/month | Individuals testing the visual editor and small projects |
| Premium | From $29/month | Small and mid-sized teams needing more projects, users, storage, and AI content generation |
| Enterprise | From $57.42/month | Larger teams needing unlimited projects, more storage, AI SEO optimization, and premium support |
Teams can also evaluate self-hosting if they want more control over the CMS layer.
Best For
- Web engineering teams building multilingual React, Next.js, Vue, or Angular applications.
- Startups that want i18n to stay inside Git instead of moving content entirely into a third-party system.
- Product teams comparing AI writing tools and localization platforms for repeatable translation workflows.
- Developers who need type-safe dictionaries, AI-assisted missing-key filling, and visual editing in one workflow.
- Teams that want a self-hostable alternative to traditional translation management platforms.
FAQ
What is Intlayer?
Intlayer is an open-source internationalization toolkit for web applications. It combines code-first translation dictionaries, generated types, AI translation, a visual editor, and optional CMS workflows.
Is Intlayer free?
The core Intlayer toolset is free and open source. Hosted CMS and advanced collaboration features are offered through Free, Premium, and Enterprise plans.
How much does Intlayer cost?
The published hosted pricing includes a Free plan, Premium from $29 per month, and Enterprise from $57.42 per month. Pricing can vary by billing option and should be confirmed on the official pricing page.
Does Intlayer support AI translation?
Yes. Intlayer includes AI-assisted translation and content generation workflows through its CLI and hosted features, depending on configuration and plan.
Who should use Intlayer?
Intlayer is best for engineering-led web teams that want translations managed close to the codebase while still giving non-developers a visual editing workflow.
How does Intlayer compare with Crowdin or Lokalise?
Crowdin and Lokalise are established translation management systems. Intlayer is more code-first and self-hostable, with Git-centered workflows and type-safe dictionaries as core product choices.
