What is Intlayer used for?

Intlayer is a per-component internationalization solution for JavaScript apps with typed content, AI-assisted translation, a visual editor and a CMS. It is a good fit for internationalizing Next.js and React apps, and letting editors manage translations visually.

Is Intlayer open source?

Yes. Intlayer is open source under the Apache-2.0 licence. Its source code is on GitHub at aymericzip/intlayer and is written mainly in TypeScript.

Yes. Intlayer is open source, so the software itself is free to use.

What is Intlayer an alternative to?

Intlayer is an open-source alternative to Locize, Phrase, Transifex and Lokalise. Other open-source alternatives to Locize include Lingo.dev, Tolgee and Weblate.

Is Intlayer actively maintained?

Yes. The most recent commit to Intlayer was on 2 October 2026, and the latest release is v9.6.0, published on 30 September 2026. The project has 844 stars on GitHub.

Intlayer: open-source alternative to Locize, Phrase

About Intlayer

Intlayer is an internationalization (i18n) solution for web and mobile JavaScript applications. Instead of one large translation file, content is declared per component in per-locale files, which keeps translations next to the code that uses them and gives TypeScript autocompletion.

It is framework-agnostic, with support for Next.js, React, Vite, Vue, Nuxt, Preact, Express and React Native. Dictionaries are tree-shakable, CI/CD integration is available, and AI-powered translation can fill in locales. A free CMS and visual editor let non-developers manage multilingual content without touching code.

The project positions itself as a modern alternative to i18n libraries it considers too complex or too rigid. It is written in TypeScript, licensed under Apache-2.0, and documented with guides for Next.js and React with Vite, plus a Discord community.

Key features

Per-component, per-locale content files
TypeScript autocompletion for translations
Tree-shakable dictionaries
AI-powered translation
Visual editor and multilingual CMS
Support for many JavaScript frameworks

Good fit for

→Internationalizing Next.js and React apps
→Letting editors manage translations visually

Built with: TypeScript; JavaScript; Next.js; React Native
Tags: i18n; localization; internationalization; typescript; nextjs; react; cms; ai-translation

Intlayer: questions and answers

What is Intlayer used for?: Intlayer is a per-component internationalization solution for JavaScript apps with typed content, AI-assisted translation, a visual editor and a CMS. It is a good fit for internationalizing Next.js and React apps, and letting editors manage translations visually.
Is Intlayer open source?: Yes. Intlayer is open source under the Apache-2.0 licence. Its source code is on GitHub at aymericzip/intlayer and is written mainly in TypeScript.
Is Intlayer free?: Yes. Intlayer is open source, so the software itself is free to use.
What is Intlayer an alternative to?: Intlayer is an open-source alternative to Locize, Phrase, Transifex and Lokalise. Other open-source alternatives to Locize include Lingo.dev, Tolgee and Weblate.
Is Intlayer actively maintained?: Yes. The most recent commit to Intlayer was on 2 October 2026, and the latest release is v9.6.0, published on 30 September 2026. The project has 844 stars on GitHub.