01
A Lockbox
Every conversation is sealed on your device. Not even Abundey can open it.
Encrypted before it syncs. Our servers only ever hold the sealed box.
A clearer first draft
On this device
Product preview
Help me turn this rough idea into a clear project brief.
A
Let’s give your idea a little structure. Start with what you’re solving, who it’s for, and what success looks like. What would you like to work on?
What’s on your mind?
Processed on your device↑
Runs on your device A Lockbox for your chats A Master Key only you hold
01 / What Ab gives you
Three things.
All yours.
Ab keeps your conversations in a Lockbox only you can open. Here is what you get when you sign up, in the order you get it.
02
A Master Key
One key opens your Lockbox on any device. Download it once, keep it somewhere safe.
Twelve words on a printable page. We never see it, so we can never lose it or hand it over.
03
A PIN
A short PIN for everyday access on the devices you trust.
Set once per device and never leaves it. Your Master Key still opens everything.
02 / Meet your on-device agent
For the work.
And the thinking behind it.
Meet Ab, your private AI agent. Bring your ideas, questions, and unfinished work. Start with a conversation and see where it takes you.
01 / write
From a first thought to a finished draft.
“Turn this rough idea into a clear project brief.”
02 / learn
Make room for every follow-up question.
“Walk me through this, step by step.”
03 / code
Your code is processed on your hardware.
“Can you find the mistake in this function?”
04 / think
Bring the context you would rather keep private.
“Help me think through the options before I decide.”
03 / Privacy is the architecture
Your intelligence.
Your side of the screen.
Useful AI shouldn’t require handing over your conversations. Ab processes your prompts locally and encrypts saved history in your browser before it syncs.
A Lockbox, sealed here
AES-256-GCM, applied in your browser before anything syncs.
Local by design
Your own hardware runs the model.
A Master Key you keep
Made on your device. It never reaches us.
No remote inference. Our servers hold sealed Lockboxes, nothing else.
Read the privacy architecture04 / Built for your device
A private workspace.
Just a browser away.
Open Ab, download the model, and start a conversation. Processing happens on your own hardware, right in your browser.
Local models are smaller than cloud models and work best for writing, thinking, and everyday questions. Speed and capability depend on your device.
Runs in Chrome, Edge, or Safari 18+ on desktop
A little space. All yours.
Big ideas.
Small audience.
Just you and your on-device AI.
Your invitation to Ab
Get started with AbFree through December 31, 2026.
Join during beta for 50% off when plans launch.