LiteChat is a fast, private, and fully offline AI chat app powered by on-device large language models (LLMs).
No servers. No data collection. No internet required.
Everything runs locally on your phone — 100% private, secure, and always available.

Whether you're writing, learning, brainstorming, coding, or chatting for fun, LiteChat gives you an instant AI assistant that works anywhere — even in airplane mode.

Why LiteChat?

LiteChat is designed for users who want the power of modern AI without sacrificing privacy or relying on cloud services. Thanks to efficient on-device LLMs, the app delivers a fast and natural chat experience while keeping your conversations fully offline.

Enjoy the benefits of AI anytime, anywhere — without subscriptions, logins, or hidden fees.

100% Private & Secure

Your messages never leave your device.
No account, no cloud, no tracking.
All processing happens locally using optimized models based on the LiteRT-LM engine.

Your data stays with you — always.

Fast On-Device Performance

LiteChat is optimized to run efficiently on modern Android devices.
Get near-instant responses, smooth interactions, and reliable performance without waiting for servers or network stability.

AI that works as fast as your phone.

Download & Manage Models Easily

Use the built-in Model Manager to:

• Download different LLMs
• Switch between models anytime
• Redownload or remove models
• See download progress, speed & status
• View what’s stored on your device

Choose the model that fits your needs — accuracy, speed, or size.

Natural Conversations

Ask anything — LiteChat responds naturally and intelligently:

• Everyday questions
• Creative writing
• Learning & studying
• Coding & tech help
• Psychology & self-help
• Recipes & travel ideas
• Storytelling & poetry
• Productivity tasks
• Brainstorming & explanations

Your personal offline AI companion.

Beautiful & Simple UI

LiteChat is built with a clean, modern interface:

• Light & dark themes
• Multiple UI languages
• Smooth onboarding
• Intuitive chat layout
• History & saved sessions
• Prompt suggestions
• File attachment support
• Voice input with TTS and STT (if available)

Everything feels fast, simple, and comfortable to use.

Multi-Language Support

The app includes translations for many UI languages, including:

🇺🇦 Ukrainian
🇺🇸 English
🇪🇸 Spanish
🇩🇪 German
🇫🇷 French
🇵🇹 Portuguese
🇷🇺 Russian

LiteChat adapts to your device automatically or lets you choose manually.

Advanced Features

• On-device model downloads
• Hugging Face token support
• Temperature control (creativity)
• System prompt customization
• Chat history search
• Offline-only operation
• Error explanations & helpful hints
• Local TTS/voice input (if available on device)

Perfect for both beginners and power users.

Powered by LiteRT-LM

LiteChat uses Google’s open-source LiteRT-LM technology, bringing on-device LLM inference to Android with high performance and low resource usage.
This allows powerful AI interactions without needing the cloud.

Modern AI — running right in your pocket.

Made for Everyday Productivity

LiteChat helps you with:

• Writing messages, essays, emails
• Generating ideas & brainstorming
• Learning complex topics
• Summarizing text
• Getting explanations
• Creating stories or poems
• Practicing languages
• Coding & debugging
• Quick knowledge lookup (offline!)

Your helpful AI assistant — always with you.

Why users love LiteChat

• Works offline anywhere
• Completely private
• Free to use
• No signup required
• Fast and lightweight
• Powerful AI models
• Simple, clean interface
• Great for everyday tasks

Start chatting offline today!

Download LiteChat and enjoy the freedom of a private, offline AI assistant that works whenever you need it.

Your device.
Your model.
Your data.
Your AI — offline.