Free to download · Windows

The AI that lives on your computer, not in the cloud.

DeeZen answers questions, writes for you, speaks your language, creates media and gets real work done — privately, on your own machine. Free for the everyday. It only touches the cloud when a task genuinely needs it, and when it does, it uses your key, not our meter.

No account needed for the free tier · your conversations never leave your device by default

Private by design Free for everyday tasks Speaks 50+ languages Honest ~$4/mo, not $20+
What DeeZen does

One app. Everything you actually use AI for.

Not a chat window bolted to a website — a real assistant that runs on your computer and does the work.

Answers & writing, instantly

Rewrite an email, summarise a document, draft a letter or CV, explain anything — answered on your machine in seconds, free.

Free

Speaks your language

Talk or type in 50+ languages — Spanish, Vietnamese, Arabic, Mandarin, Italian and more — and get the answer back in your language. Powered by your own translation server, not a silent hop to the cloud.

50+ languages

Real voice, on-device

Speak to it and hear it reply — voice input and spoken answers run locally. No audio uploaded anywhere unless you say so.

Voice
Made with DeeZen

Create images, video & audio

Generate media with a free draft lane on your own hardware, or studio-quality results when you want them — on prepaid credits that never expire.

Image generated with DeeZen
Video frame generated with DeeZen
Audio / media created with DeeZen

Reads your documents

Drop in a PDF, Word doc, spreadsheet or photo of a bill — DeeZen reads it, extracts what matters and explains it in plain language.

Documents

Hands over the finished work

DeeZen doesn't just answer — it delivers. Save the finished work straight to your device, push it to your code repo, or deploy it to your own server. You approve every step; it does the legwork.

Save · Push · Deploy

Uses every machine you own

Link your computers over your own network into one private compute mesh. DeeZen spreads heavy jobs — big computations, media renders, long tasks — across your machines, so the strong box does the heavy lifting while you work on any of them. Your own distributed system, no cloud required.

Local mesh · distributed workloads
Private by design

Your business stays on your machine.

Most AI sends everything you type to someone else's server. DeeZen is built the other way around: it runs on your computer, so your conversations, documents and keys stay with you by default. Here's the deal, in plain terms.

01 — Free & local

Everyday tasks run on your machine

Rewrites, summaries, letters, questions — handled by the AI on your device. Nothing uploaded. Always free.

02 — Your key, your call

Harder tasks use your own key

When a job genuinely needs a bigger model, it uses your provider account — you're billed by them, not us. We never touch your money.

03 — Honest about it

You always know which it is

DeeZen tells you when something leaves your device, and a cost dial puts a ceiling on spend. No surprises, no silent data-hoovering.

Honest pricing

About the price of a coffee. Not a $20 subscription.

The free tier genuinely works, forever. The paid product is the full assistant — router, efficiency stack, every feature — for a few dollars a month, and your cloud usage is billed at cost by your own provider.

A typical frontier AI subscription is $20+/month. DeeZen is the price below — and we show you the maths.

Everyday AI (local tier)Free
DeeZen subscriptionUS$4/mo
Cloud AI, typical use (your key)~$1/mo
Your all-in cost~$5/mo

vs ~$20+/mo for a frontier subscription. Cloud usage is metered by your provider on your key — DeeZen never marks it up.

Free
$0 forever
  • Everyday answers & writing on your device
  • Reads documents, PDFs & photos
  • 50+ languages (text & voice)
  • Private — nothing uploaded
Download free
DeeZen
$4 /month
  • Everything in Free
  • The full assistant — router, efficiency stack, all features
  • Media creation (images, video, audio)
  • Run tasks across your other computers
  • Cost ceiling dial — you control spend
Get DeeZen

Try it on your own computer.

One download, a minute to install, and the everyday AI is free from the first run — no account, no card, nothing uploaded.

Signed by ZenCognitics Pty Ltd · Windows 10 & 11 · Mac & Linux on the way