AntiChat
Chat
Write, plan, explain, code. Drop in PDFs, spreadsheets and documents, and get files back.
Works on every Apple silicon Mac
AntiChat 0.0.1 is out
Your own AI, on your Mac.
Chat, talk, make pictures and short videos. It all runs on your Mac's own chip. Private, free, and no account.
AntiChat needs a Mac with Apple silicon (M1 or later). Intel Macs are not supported.
Free · macOS 26 Tahoe or later · Apple silicon
A real AntiChat window. The lighthouse was drawn by the Mac itself.
$0a month, for good
0accounts to make
4packs, all on device
Four packs. One window.
Pick what you want during setup. AntiChat checks your Mac and only offers what fits.
Voice
Talk it through, hands-free. It listens, thinks, and answers out loud.
Photo
Make pictures from a sentence, then edit, erase, cut out and upscale them.
Needs 16 GB of memory
Video
Short clips from a sentence or a picture, rendered on your Mac while you keep chatting.
Needs 24 GB of memory
Models are downloaded in the app, and their sizes are shown before anything downloads. Requirements
The things you use, without the cloud.
The parts of a chat app you reach for every day, built in and working offline.
Files in, files out
Read PDFs, spreadsheets and documents, and write files back out.
Web search, if you want it
Off until you turn it on. Answers come with sources you can check.
Projects and memory
Keep related chats, files and instructions together.
Incognito chats
Nothing from an incognito chat is saved. Close it and it's gone.
Command palette
Jump to any chat, action or setting from the keyboard.
Updates itself
Signed updates in the background. Your chats and models are never touched.
Evil Mode · off by default
Unfiltered. No lectures.
Uncensored versions of each model, for adults who want straight answers. Near-zero refusals, adult content allowed, and it can be wrong, offensive or explicit.
- Turn it on in setup or Settings, and confirm you're 18 or older.
- Every Evil chat gets a red frame, so you always know which mode you're in.
- Lock it behind Touch ID, or hide the switch on a shared Mac.
There is a floor, and it doesn't move.
One thing is blocked in every mode: sexual images or video involving minors. An on-device check runs on every picture and clip it makes. So no, it isn't “zero restrictions”.
Read the Evil Mode terms and the acceptable use policy.
Private by default.
Your chats, pictures and models live on this Mac. Nothing leaves it unless you use an online feature.
Works offline
Once the models are downloaded, turn on Offline only and nothing leaves your Mac at all.
No telemetry
No analytics, no tracking, no usage pings. AntiChat never trains on what you write.
No account
No sign-up and no email. Open it and start typing. Settings exports everything, any time.
Every online feature is listed on the privacy page. The source code is coming.
Up and running in minutes.
No terminal, no Python, no model hunting.
Download and open
Drag AntiChat to Applications. The disk image holds no models, so it's small.
Pick your packs
Chat is the default. Add Voice, Photo or Video if your Mac has room.
Start chatting
Chat is ready first. Type while the rest downloads in the background.
Questions
Which Macs does it run on?
A Mac with Apple silicon (M1 or later) running macOS 26 Tahoe or later. 8 GB of memory is enough for chat. Photo needs 16 GB and Video needs 24 GB. Intel Macs are not supported.
How much disk space does it need?
The app is under 300 MB. Models are downloaded separately and each pack takes several gigabytes. Setup shows the size of each pack before anything downloads, and AntiChat always keeps 10 GB free. Settings › Storage shows what each pack uses and frees space.
Which models does it use?
Open-weight models at pinned versions, picked to fit your Mac: Qwen and Gemma for chat, Parakeet, Whisper and Kokoro for voice, FLUX.2 klein, Z-Image and Qwen-Image-Edit for pictures, and Wan 2.2 or LTX for video.
Settings › Capabilities lists every model with its licence. See model licences.
Is it safe? What does Evil Mode allow?
Normal mode behaves like the chat apps you know. Evil Mode is off by default, for adults only, and swaps in uncensored models with near-zero refusals.
One thing is blocked in every mode: sexual images or video involving minors. The terms also forbid sexual imagery of real people without their consent. Read the Evil Mode terms.
Does it really work offline?
Yes, once the models are downloaded. Turn on Offline only in Settings › Privacy & Data and web search, connections, updates and downloads pause.
How do updates work?
AntiChat checks once a day, downloads signed updates in the background and installs them when you restart. Your chats and models are never touched by an update. See the changelog.
How do I uninstall it?
Choose AntiChat › Uninstall AntiChat… It lists what it will remove and how much space that frees, offers to export your data first, then removes everything and moves itself to the Trash. Remove it by hand if you prefer.
Is it really free? Is it open source?
Free, with no account and no subscription. The source code isn't public yet. It's coming.
More answers in Help.
Free. Yours.
No account, no subscription, no cloud. Just your Mac.
AntiChat needs a Mac with Apple silicon (M1 or later). Intel Macs are not supported.
Free · macOS 26 Tahoe or later · Apple silicon