One portable file
Everything in a single .udf — copy it, back it up, move it between machines like any document.
Open spec
UDF
Your knowledge, in a file you own.
UDF is the open, portable .udf format that DOCNEST and Knovex
write — a single, self-contained file that holds structured knowledge.
One spec, no lock-in: yours to keep, inspect, and read anywhere.
One open spec, no lock-in. The same .udf file is
byte-compatible across DOCNEST and DocNest .NET — the file is
yours to keep, long after any one tool.
Why a format
Built so your knowledge outlives the app
A format is a promise: what you keep today, you can still open in ten years.
Open & no lock-in
Published under CC BY 4.0. Anyone can read or implement it — your knowledge isn't trapped in a vendor.
Inspectable
A .udf is a ZIP container — unzip it and look inside. No black box, no proprietary blob.
Engine-agnostic
The same file is read identically by DOCNEST (Python) and DocNest .NET (C#) — pick your stack.
Structured, not flattened
Keeps a document's shape — sections, tables, relationships — so engines can answer from structure.
Future-proof
An open, documented spec means the file stays readable regardless of which app you use next.
In the platform
UDF is read & written by
Read the spec
The format is open and documented. Implement it, or just understand what your files hold.