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Automatic translations

Automatic translations

ButterKit is the smooth way to automate app screenshots, localization and more. Learn more

On-device Translation Engine

ButterKit ships with on-device translation capabilities powered by Apple’s Translation Framework. This translation engine is free to use and capable of working entirely offline after you download the proper language packs available in macOS System Settings > General > Language & Region > Translation Languages. However, on-device translation is limited to about 19 languages as of December 2025. See full language availability below.

Cloud Model Availabilty

Most popular cloud LLM models are supported in ButterKit. You will need a Pro license and your own API Key for the model you want to use.

  • OpenAI ChatGPT
  • Google Gemini
  • Anthropic Claude
  • OpenRouter (and hundreds of additional models via OpenRouter, full list available here)

Language Availability

LanguageCodeOn-device (free)Cloud Models (bring-your-own-key)
Arabicar✅ Supported✅ Supported
Chinese (Simplified)zh-hans✅ Supported✅ Supported
Chinese (Traditional)zh-hant✅ Supported✅ Supported
Dutchnl✅ Supported✅ Supported
Frenchfr✅ Supported✅ Supported
Germande✅ Supported✅ Supported
Hindihi✅ Supported✅ Supported
Indonesianid✅ Supported✅ Supported
Italianit✅ Supported✅ Supported
Japaneseja✅ Supported✅ Supported
Koreanko✅ Supported✅ Supported
Polishpl✅ Supported✅ Supported
Portuguesept✅ Supported✅ Supported
Russianru✅ Supported✅ Supported
Spanishes✅ Supported✅ Supported
Thaith✅ Supported✅ Supported
Turkishtr✅ Supported✅ Supported
Ukrainianuk✅ Supported✅ Supported
Vietnamesevi✅ Supported✅ Supported
All other languages—❌ Not yet supported✅ Supported (varies by model)

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