Translate between 200+ languages — 100% local, zero data leaves your browser
To translate text: enter your text, select source and target languages from 200+ options — the AI model runs entirely in your browser, no text is sent to any server.
FreeToolHub AI Translator is a free browser-based tool that translates 200+ languages locally using Meta NLLB-200, no signup, no upload.
About this tool
Translate text between 200+ languages with AI that runs entirely in your browser. No signup, no API, no upload. Free, private.
What Is the AI Translator?
The AI Translator is a free, browser-based translation tool that supports over 200 languages. It uses Meta's NLLB-200 (No Language Left Behind) model, which runs entirely in your browser using WebAssembly — no text is ever sent to a server. Unlike cloud-based translators like Google Translate or DeepL, this tool processes your text locally on your device, ensuring complete privacy.
Who Should Use This Tool?
This tool is for anyone who needs private, secure translation: professionals handling confidential documents, travelers without internet access (after initial model download), developers building multilingual apps, students learning languages, and anyone concerned about data privacy. It is especially valuable for translating sensitive content like legal documents, medical records, or business communications that should not be uploaded to third-party servers.
How Does This Tool Work?
The tool downloads Meta's NLLB-200-distilled-600M model (~240MB) to your browser on first use. This model was trained on parallel texts across 200+ languages and can translate directly between any pair of supported languages without going through English as an intermediary. After the initial download, the model is cached in your browser and works offline. Translation happens in real-time using WebAssembly, with no network requests after the model is loaded.
What Languages Are Supported?
NLLB-200 supports over 200 languages including all major world languages (English, Chinese, Spanish, Hindi, Arabic, Bengali, Portuguese, Russian, Japanese, French, German, Korean, and more) as well as many low-resource languages that other translators do not support (such as Acehnese, Central Atlas Tamazight, Luganda, Luo, and many others). The tool provides quick access to the top 40+ languages with an option to browse all supported languages.
Frequently asked
Is this AI translator really free?
Yes, 100% free with no signup, no API key, no usage limits, and no watermark. The AI model (NLLB-200, ~240MB) runs entirely in your browser using WebAssembly. There are no server costs because no text is ever uploaded.
Is my text sent to a server?
No. The NLLB-200 model runs 100% in your browser. Your text is processed locally and never leaves your device. There is no signup, no account, and no data collection. This makes it safe for translating confidential documents.
How many languages does it support?
Over 200 languages, powered by Meta's NLLB-200 (No Language Left Behind) model. This includes all major world languages plus many low-resource languages that other translators do not support. The tool shows the top 40+ languages by default with an option to browse all supported languages.
Does it work offline?
After the initial model download (~240MB, cached in your browser), the translator works completely offline. No internet connection is needed for translation after the first use. The model is cached in IndexedDB and persists across browser sessions.
How accurate is the translation?
NLLB-200 is a state-of-the-art open-source translation model developed by Meta AI. It achieves competitive BLEU scores across 200+ languages. For major languages (English, Chinese, Spanish, French, etc.), quality is comparable to Google Translate. For low-resource languages, quality may vary but is often the only option available.
Can I translate long documents?
Yes. The tool automatically splits long text into sentence-level chunks for reliable translation, then reassembles the results. There is no hard character limit, but very long texts may take more time to process since translation happens locally on your device.
Related tools
Why did the fish blush?
No paywalls, no signups, no data sold. Built by a solo developer who believes useful tools should be accessible to everyone.
☕Support me on Ko-fi— keep tools free100% of proceeds go towards hosting & building more free tools.