100% Offline AI on Mobile. High-speed API Bridge on Desktop. The ultimate tool for legal and business professionals.
MOBILE EDITION
Built-in LLM, Whisper & OCR. 100% On-device processing.
DESKTOP EDITION
OpenAI API Compatible. Recommended: Ollama / vLLM.
No user data is ever uploaded to PrivaTrans servers. You control the model, you control the data.
Connect to Ollama, vLLM, or any OpenAI-compatible provider. Use the most powerful local or private models on your PC/Mac.
Built-in HY-MT & TranslateGemma, Whisper voice-to-text, and OCR. No internet or API setup required to translate instantly.
Translate .docx legal documents locally while preserving original formatting.
Professional rewriting for Legal, Business, or Academic styles with one click.
Maintain consistency by defining your own terminology sets for specific industries.
Developed by Li Boyang, a PRC Licensed Lawyer at Beijing Longan (Guangzhou) Law Firm.
"I built PrivaTrans because I needed a tool that I could trust with my own clients' confidential data. If it goes to the cloud, it's out of your control. PrivaTrans keeps it in your hand."
PrivaTrans is free forever. If you have any suggestions, or need professional legal consultation regarding Chinese law, feel free to contact me.
liboyang@lslby.comLast Updated: 2026-01-18
PrivaTrans ("we," "our," or "us") respects your privacy. This Privacy Policy explains how our application handles your data. By using PrivaTrans, you agree to the collection and use of information in accordance with this policy.
We do not collect, store, or transmit any personal data, text inputs, voice recordings, document contents, or translation results to our servers or any third-party servers. All processing is performed locally on your device.
The application requires internet access ONLY for: (1) Downloading AI models from public repositories; (2) Checking for application updates.
Last Updated: 2026-01-18
Please read these Terms of Service ("Terms") carefully before using the PrivaTrans application (Desktop or Mobile).
By accessing or using PrivaTrans, you agree to be bound by these Terms. If you disagree with any part of the terms, you may not use the application.
The Application is provided to you "AS IS" and "AS AVAILABLE" and with all faults and defects without warranty of any kind. We expressly disclaim all warranties. Specifically, we do not warrant that the AI-generated translations or speech transcriptions will be accurate, reliable, or error-free.
PrivaTrans is a tool designed to assist professionals. However, AI translation should not replace professional human translation, especially for critical legal documents. We shall not be liable for any damages arising from errors in translation or the use of this application.
You retain all rights to the content you input into the Application. Since the Application operates offline, we do not access, claim ownership of, or have any liability for your content.