OfflineGPT
Chat, image generation, voice input & AI tools – all offline, right on your phone. 100% private. No cloud. No data leaves your device.
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What OfflineGPT Can Do
Your complete AI ecosystem – no internet required
Truly Offline
Works without Wi-Fi, data, or signal. Perfect for traveling, flying, or remote work. Everything runs locally on your device.
Private by Design
Nothing is sent or stored outside your device. No tracking, no cloud, no compromises.
Whisper Voice Input
Speak instead of type – powered by OpenAI Whisper. 99 languages, just ~80MB, fully offline. Simply dictate your prompts.
Image Generation (Stable Diffusion)
Generate images directly on your phone. Photorealistic (AbsoluteReality) or anime-style (Anything V5) – completely offline.
9+ AI Tools
Summarize, grammar check, tone, code, email, brainstorm, OCR document analysis and more. Even create your own custom tools.
Thinking Models
Qwen3 visibly thinks step by step before answering. Better answers through real reasoning.
10 Themes & 8 Languages
From Dark to Galaxy – personalize your AI experience. Available in EN, DE, FR, ES, IT, PT, NL and AR.
Custom Model Import
Import any GGUF model from Hugging Face & more. Your AI, your rules. (Pro)
How It Works
4 steps to offline AI
Download the app
Get OfflineGPT from the Google Play Store – just ~30MB.
Choose your models
Select your models: chat, image generation, voice input – whatever you need.
Get started
Chat, generate images, dictate, use AI tools – all offline, ready to go instantly.
Customize & expand
Pick themes, create custom tools, load custom models – even more with Pro.
Why Choose OfflineGPT?
Most AI apps stream your data. OfflineGPT gives you full control.
By loading powerful models locally and using a custom native backend with dynamic thread management, batch optimization, and a sliding window context system, it delivers intelligent answers even under hardware limits.
This is AI on your terms.
Built-in AI Tools
More than just chat – a complete toolkit
Summarize
FreeCondense long texts to the essentials
Simplify
FreeMake complex texts easy to understand
Change Tone
FreeFormal, casual, professional – you decide
Grammar Check
FreeFind and fix errors
Social Posts
FreeGenerate posts for social media
Documents & OCR
ProScan and analyze PDFs, images & camera
Email Writer
ProCompose and reply to emails
Brainstorm
ProGenerate and develop ideas
CodeLab
ProGenerate code in any programming language
Custom Tools
ProCreate your own tools with custom prompts
Available Models
Choose the right model for your task
Chat Models
LFM2.5 1.2B
LiquidAI
Qwen2.5-0.5B
Alibaba
Llama 3.2-1B
Meta
Gemma 2B
Qwen2.5-3B
Alibaba
Rocket 3B
Community
Thinking Models
Qwen3 0.6B Thinking
Alibaba
Qwen3 1.7B Thinking
Alibaba
Image Generation
AbsoluteReality
Lykon (Photorealistic)
Anything V5
Anime-style
Voice
Whisper Base
OpenAI (99 languages)
Plus: Import your own GGUF models (Pro)
Free vs. Pro
What do you get with Pro?
| Feature | Free | Pro |
|---|---|---|
| AI Models | 1 Chat + 1 Image | Unlimited |
| Custom Models (GGUF) | — | Unlimited |
| AI Tools | 5 basic tools | All 10+ tools |
| OCR & Document Analysis | — | Incl. camera & PDF |
| Context Size | 2,048 tokens | Up to 16,384 tokens |
| System Prompts | 2 presets | All + custom |
| Prompt Templates | Max. 5 | Unlimited |
| Whisper Voice Input | Included | Included |
| Image Generation | 1 model | Unlimited |
| Ads | None | None |
One-time purchase – no subscription.
Ready for Offline AI?
Download OfflineGPT today and experience the difference.
Frequently Asked Questions
Do I need internet for OfflineGPT?
No! After the initial model download, OfflineGPT works fully offline – chat, image generation, voice input and all AI tools work without internet.
Is OfflineGPT free?
Yes! The free version includes one chat model, one image model, Whisper voice input, and 5 AI tools. The Pro version (one-time purchase, no subscription) unlocks all models, OCR, custom tools, and advanced settings.
Which AI models are supported?
Chat: LFM2.5, Llama 3.2, Qwen2.5, Qwen3 (Thinking), Gemma 2B, Rocket 3B. Image generation: AbsoluteReality & Anything V5. Voice: Whisper Base (99 languages). Plus: Import your own GGUF models (Pro).
Can I generate images?
Yes! With Stable Diffusion right on your phone. Choose AbsoluteReality for photorealistic images or Anything V5 for anime-style. All offline, no cloud.
How does voice input work?
OfflineGPT uses OpenAI Whisper (~80MB) for speech-to-text in 99 languages – completely offline. Just press the microphone button, speak, and the text appears as your prompt.
What are AI Tools?
Pre-built tools for common tasks: summarize text, check grammar, change tone, create social posts, generate code, analyze documents (OCR) and more. You can even create your own custom tools.
How does privacy work?
All conversations, images, and data stay on your device. Nothing is transmitted to servers or clouds. No tracking, no ads, no data collection – guaranteed.
Does it work on all Android devices?
OfflineGPT is optimized for mid-range to high-end Android smartphones (Android 7.0+). Smaller models like LFM2.5 and Qwen2.5-0.5B run well even on older devices.