arf

Local-first second-brain desktop app for researchers and coders that surfaces note connections via on-device AI.

Desktopfree

Arf is a local-first second-brain desktop app for scientists, researchers, and coders that stores notes as plain Markdown files and uses a small on-device model to surface related notes the user never explicitly linked. It includes a knowledge graph view, a citation manager for academic references, and a side reader for PDFs and EPUBs, aimed at people who want private, on-device note connection discovery.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of arf - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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