01
Live
Knowledge
DOCNEST
Turns any document into portable, structured .udf
knowledge you own.
Local-first AI · live today
Own your intelligence.
The local-first AI platform — your knowledge, your learning, your machine. Nothing leaves your laptop unless you allow it.
Free, open, and yours. Knowledge engine + learning app, live today.
$ pip install docnest-ai
>>> from docnest.reader import UDFIndex
>>> idx = UDFIndex.load("report.udf")
>>> r = idx.query("What was Q3 revenue?")
>>> r.answer # "Q3 revenue was $38M, up 22% YoY."
>>> r.tokens_used 0 # answered from structure, no LLMAnswered straight from the document — no model call, no token bill.
Built on
DOCNEST engine
Knovex app
Open
.udf format
On-device. Always.
Most AI reads your private documents on someone else's computer, charges you to re-read them every time, and forgets it all when you close the tab.
The platform
Four layers, one foundation
Knowledge, understanding, agents, and models — stacked like hand-laid stones. We lead with what's live and mark the future as the future.
02
Live
Understanding
Knovex
A desktop app to chat, summarize, search, and actually learn from your knowledge.
03
Roadmap
Agents
Keepvidya Flows
Agentic workflows that act on your knowledge, where it lives.
04
Roadmap
Models
Keepvidya Core
Small LLMs running on-device — no cloud required.
Local-first foundation — your machine, your data. Always.
Products
Tools you run yourself
Each one open, each one yours — with one real proof.
DOCNEST
Structure-first knowledge engine · MCP server
Reads documents by structure, not by re-stuffing them into a prompt — so it answers from what it already understands.
Zero-token answers on 80% of factual queries, 100% accuracy, ~92% fewer tokens.
Knovex
Local-first desktop app · built on DOCNEST
The app that makes you learn, not just look things up — Learn Mode turns your documents into lessons.
Learn Mode with animated lessons, running entirely on your machine.
UDF
The open knowledge file format
An open, portable .udf file — your knowledge in a
format you own and can read anywhere.
One open spec, no lock-in — the file is yours to keep.
DocNest .NET
The engine, for C#
The DOCNEST engine for the .NET ecosystem — bring local-first knowledge into your C# apps.
.udf byte-compatible with DOCNEST — same files, both engines.
Why local-first
The private alternative to cloud AI
Same task, two very different deals.
What matters
Cloud AI
Keepvidya
Your data
Cloud
Uploaded to someone else's computer.
Local-first
Stays on your machine.
Cost to re-read
Cloud
Re-billed every time it re-reads your docs.
Local-first
Embed once; ask freely.
What you keep
Cloud
Chat-and-forget when the tab closes.
Local-first
Learn it and keep a
.udf you own.
The format
Cloud
Proprietary lock-in.
Local-first
Open, portable format.
Own your intelligence.
Start with the app that's live today. Your knowledge, your learning, your machine.