Open source

LM Mini is open core.

The free app is MIT-licensed on GitHub: chat, on-device models, LM Studio and Ollama on your Wi‑Fi, personas and voice. Pro features ship only in the official App Store, Google Play and Mac builds. Your subscription pays for the work.

View source on GitHub Get the official app

MIT License · Flutter / Dart · iOS · Android · macOS

What's open, what's in Pro

Pro code isn't in the public repo. Building from source gives you the free app, not a free Pro.

Feature	Open source (MIT)	Official app + Pro
LM Studio, Ollama, oMLX, JAN AI and Unsloth on your network	Included: Yes	Included: Yes
Personas, folders, themes, attachments and vision	Included: Yes	Included: Yes
Voice chat: speech-to-text, system voices, Kokoro on-device	Included: Yes	Included: Yes, plus ElevenLabs and Grok voices
Tools: SearXNG web search and MCP servers	Included: Yes	Included: Yes, plus Pro Search, URL reader and Code Sandbox
Image generation: AUTOMATIC1111, ComfyUI, on-device Stable Diffusion	Included: Yes, with the starter on-device model	Included: Yes, every on-device model
Widgets, Apple Shortcuts and the Mac app (LM Mini Home)	Included: Yes	Included: Yes
On-device models (GGUF; MLX on Apple silicon)	Partly: Four small starter GGUF models and one imported file	Included: Full catalog with bigger and MLX models, Hugging Face downloads, unlimited imports
Arena model races	Partly: Built-in race prompts; anonymous speed results are shared	Included: Your own prompts, cloud contestants, saved history, sharing opt-out
Chat export	Partly: PDF and TXT	Included: Plus Markdown, JSON and Obsidian
Model parameters	Partly: Global parameters	Included: Per-model and per-persona presets
Group Chat: several models in one room	Not included: Not included	Included: Up to 5 participants
Remote access away from home (Share with phone, Connect)	Not included: Not included	Included: Yes, encrypted relay
Cloud providers with your own key (OpenRouter, Mistral, DeepSeek, Gemini, Z.AI, Vercel AI Gateway, OpenAI-compatible)	Not included: Not included	Included: Yes
Memory, Compact chat, Context fit and Branching	Not included: Not included	Included: Yes
App Lock, encrypted Cloud Backup and the Analytics dashboard	Not included: Not included	Included: Yes
Live Activity, background generation and the News widget	Not included: Not included	Included: Yes

The free tier of the official app matches the open-source column. See the getting started guide for setup.

Why open core

You can check what a private AI app does with your chats. Pro keeps the lights on.

Read what it does A privacy app should be checkable. Every request the open-source build makes is in code you can read.
Build your own Fork it, change it, ship it under your own name. The MIT License allows commercial use.
Pro pays the bills Subscriptions fund development and the hosted services Pro uses: the remote-access relay, Pro Search and backups.
Same core either way The store app is this core with the Pro code added. The free features you can read are the free features you get.

Build it yourself

You need Flutter (stable channel) and the toolchain for your platform: Xcode for iPhone and Mac, Android Studio for Android.

Clone the repository

git clone https://github.com/slim-elephant/lm-mini.git
cd lm-mini

Copy the Firebase placeholders

The repo ships example Firebase files that point at a placeholder project, so the app builds without one. Firebase features stay off until you use your own. Android needs no Firebase file.

cp lib/firebase_options.example.dart lib/firebase_options.dart
cp ios/Runner/GoogleService-Info.example.plist ios/Runner/GoogleService-Info.plist
cp macos/Runner/GoogleService-Info.example.plist macos/Runner/GoogleService-Info.plist

Fetch packages
```
flutter pub get
```
Run it
```
flutter run
```
For sign-in and the other Firebase features, connect your own Firebase project. The build guide shows how.

Full build guide →

Contribute

Bug reports and pull requests for the open-source core are welcome.

Report a bug

For the free core, open a GitHub issue. Bugs in Pro features go to [email protected].

Open an issue →

Send a pull request

Fork, branch, and run flutter analyze and flutter test before you open it.

How to contribute →

Report a security issue

Email [email protected] with the details. Please don't open a public issue for a vulnerability.

Email security report →

Feature ideas: use Feature Requests in the official app, or open a GitHub issue. Want to say thanks? Buy me a coffee.

Name and logo

The MIT License covers the code. It doesn't cover the LM Mini name or app icon. If you publish a build, give it your own name and icon, and don't present it as LM Mini or as the official app. Saying it is based on LM Mini is fine.

Questions about using the name: [email protected].

Common questions

Is LM Mini open source?

The core app is. It is MIT-licensed on GitHub at github.com/slim-elephant/lm-mini. LM Mini Pro is not: Pro code ships only in the official App Store, Google Play and Mac builds.

Can I get Pro by building from source?

No. The Pro code is not in the repository, and a source build hides Pro features and upgrade prompts. To use Pro, install the official app and subscribe.

Does a build from source talk to LM Mini servers?

It ships without our Firebase configuration and without Pro services, and it sends chats only to the providers you configure. It may still check lmmini.com for version information, and the Mac app's Share with phone uses our relay, which forwards encrypted traffic and stores nothing. If you add your own Firebase project, that data goes to your project.

Why does my build look different from the store app?

Pro features and upgrade prompts are hidden, and features that use our Firebase backend (sign-in, feature requests, community themes, the voice catalog) stay off until you connect your own Firebase project. The free features run the same code.

Can I publish my fork to the App Store or Google Play?

Yes, the MIT License allows it. Give it your own name, icon and bundle ID, and don't present it as LM Mini or as the official app.