Quetzal

Quetzal is a modern internationalization platform that helps you localize your app in minutes. It keeps your codebase localized, without the constant upkeep, and links your repo once so translations stay current as code evolves.

Quetzal reads the code around each string — components, props, comments — and translates with context to ensure accuracy across buttons, headings, or errors. It uses neighboring strings and prior translations to keep copy consistent, and enforces brand terms and glossary usage.

Quetzal can translate strings outright or improve quality and coverage through audits, with code updates that wrap unlocalized text so missed strings don’t reach production.

Quetzal plugs into existing stacks without rewrites or migrating pipelines. It supports JavaScript, TypeScript, React, Next.js, Swift, Python, Kotlin, Java, HTML, XML, and more, and works with other i18n setups to cover 20+ languages. It emphasizes data privacy, not training on code, and uses enterprise terms with AI providers for translation.

Use cases

• Localize applications by adding languages across the product