private alpha · 100+ engineers

Build Engineering
Second Brain
for proactive learning.

Surfacesyour learning goals.
Closesthe gaps you don't see.
Compoundswhat you know.

join the waitlist →

100+

engineers in private alpha

1.2M

graph edges drawn

10%

avg retention without supadense

not storage. intelligence.

Four verbs.
One compounding loop.

Most tools store. Supadense thinks alongside you — personalising what you read, threading it into your graph, surfacing what you almost forgot, and getting denser every day you use it.

01 · capture

Personalised.
Proactive.

Drop a paper, paste a thread, hit ⌘+shift+S on any tab. Supadense pulls claims, code, and citations — biased by what you already keep.

02 · connect

It threads into
what you already know.

Every fragment auto-links to prior reading — papers, half-thoughts, code you've shipped. No tagging. The graph compounds on every capture.

03 · surface

Notes that
make you learn back.

Spaced reviews. Gap calls. "you wondered about this in June" nudges. Quiet, on cadence — not another inbox.

04 · compound

Dense knowledge
that compounds.

Each session makes the next denser. Can't be cloned by feature parity — only by years of your own data.

your knowledge · alive

Dense knowledge,
drawn into a graph.

Every fragment you capture connects to every other fragment you already keep. Not a list, not a folder — a living surface that gets denser, faster, and more personal the longer you use it.

2,184 edges · drawn auto

surfacing · tue 09:14

Past-you wondered about RAG memory three times this month.

4 fragments · arxiv 2509.11240

field moved

Your long-context note is outdated — deepseek-r2 just landed.

stale · 7 days since cap

active · last 7 days

retained

stale · field moved

gap · unanswered

847fragments

2.1kedges

6clusters

82%retention

→ a real fragment graph after 90 days of alpha use

explore the graph ↗ build yours →

Build Engineering
Second Brain
for proactive learning.

A peek inside the platform.

Four verbs.
One compounding loop.

Personalised.
Proactive.

It threads into
what you already know.

Notes that
make you learn back.

Dense knowledge
that compounds.

Dense knowledge,
drawn into a graph.

Build your engineering second brain
for proactive learning.

Build EngineeringSecond Brainfor proactive learning.

A peek inside the platform.

Four verbs.One compounding loop.

Personalised.Proactive.

It threads intowhat you already know.

Notes thatmake you learn back.

Dense knowledgethat compounds.

Dense knowledge,drawn into a graph.

Build your engineering second brainfor proactive learning.

Build Engineering
Second Brain
for proactive learning.

Four verbs.
One compounding loop.

Personalised.
Proactive.

It threads into
what you already know.

Notes that
make you learn back.

Dense knowledge
that compounds.

Dense knowledge,
drawn into a graph.

Build your engineering second brain
for proactive learning.