v2.4 — Offline · Plaintext · Yours
A second brain
that doesn't
try to be pretty.
Index is a plaintext second brain for rigorous thinkers. No canvas. No AI slop. Just fast capture, hard links, and instant recall.
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INDEX — LOG.TXT
— 2026-05-14 09:42 —
$ index add “memory palaces work because place encodes context” #memory #place
→ linked to 3 notes: [[method of loci]] [[spatial recall]] [[urban memory]]
$ index search “what did I note on walking + memory?”
3 results — 0.04s
› 2024-03-12 — Walking as method
› 2024-04-01 — Palaces, revisited
› 2025-11-09 — City as archive
$
0.04s
Search
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Offline
342
Notes
Plaintext
Local-first
Encrypted
Export anytime
01 — CAPTURE
Type. It’s saved. Everywhere.
Hotkey capture from any app. No modals. No AI popups. Text, link, and source in one line.
INBOX.TXT3 new
— add [[walking]] as method for remembering
— clip https://…/palaces → linked
02 — LINK
Hard links. No magic.
[[double brackets]] create real connections. See backlinks, not “AI suggests.”
[[memory]]
← 14 links
[[place]]
← 9 links
03 — RECALL
Grep your mind.
Full-text, tag, and graph search. Instant. No embeddings required, but available if you want them.
ripgrep fast0.04s
04 — OWN
Your files. Forever.
Markdown on disk. Git-friendly. No lock-in. `index export --all` gives you everything.
Spec — No fluff.
v2.4.1 · Changelog →Format
Markdown + YAML
Every note is a file. Edit in any editor.
Sync
Local + E2E
Syncthing or encrypted cloud. Your choice.
Search
0.04s median
ripgrep core. Optional vector index.
Links
342 avg graph
Backlinks, graph view, or just text.
Export
One command
`index export` → zip of all markdown.
License
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Why rigour matters
“I don’t want my notes to be smart. I want them to be findable. Index is the first tool that respects that.”
— Lena K., researcher · 1,800 notes over 4 years