12345
Commonplace
MethodTerms
Get the app

Forgetting
is optional

Commonplace is a second brain for people who think in writing. Write it once. It stays found.

Get the appThe method
A second2ndbrain, kept

Three verbs. No folders.

1CaptureWrite it the moment it occurs. One inbox, zero filing decisions.
2ConnectLink notes by hand, or let the system propose the obvious ones.
3ResurfaceOld notes return inside new work, the week they become useful.
A worktable covered in handwritten notes and index cards

Plain terms

It is

  • Plain markdown files on your disk
  • Bidirectional links between notes
  • Search that reads meaning, not keywords
  • Yours if we disappear tomorrow

It is not

  • A folder hierarchy you must maintain
  • A database you design before writing
  • A feed. Nothing scrolls unless you do
  • Locked in. Export is a copy command
“My notes stopped being a landfill and started being a filing system that files itself.”

Thea Lindqvist, architect, Copenhagen

Start keeping

Get the appFree under 500 notes
CommonplaceSet in Archivo© 2026