Translate Any Language on Mac with AI

Echoo brings the power of large language models directly into your macOS workflow for seamless, context-aware translation. Unlike traditional translation tools that require switching between browser tabs or dedicated apps, Echoo lets you translate selected text in any application with a single keyboard shortcut. Whether you are drafting an email in English and need a quick French version, or reading a Japanese article and want an instant English summary, Echoo handles it natively on your Mac.

Powered by state-of-the-art AI models from OpenAI, Anthropic, and Google, Echoo delivers translations that understand context, tone, and idiomatic expressions — not just word-for-word replacements. The result is natural, fluent text that reads as if it were written by a native speaker. You can customize the translation style (formal, casual, technical) and even ask the AI to preserve specific terminology for your industry.

Echoo currently supports over 50 language pairs including widely spoken languages like Spanish, French, German, Portuguese, Chinese, Japanese, Korean, and Arabic, as well as less common pairs. Every translation runs locally through your own API keys, so your text never passes through third-party servers. Browse the language pairs below to find step-by-step guides, example translations, and tips for getting the most accurate results.