12345
Kept
IndexPricingStart free

Keep what you read.
Find it when it matters.

Kept links each note to the ones before it, and brings old ideas back when they become useful again.

Start freeSee how it works
A bundle of handwritten letters tied with string, beside a fountain pen

Every note keeps the company of others.

Type [[ to link one note to another. Kept writes the backlinks in the margin for you, so nothing you save stands alone.

Tuesday, 14 May

On keeping a commonplace book

Locke kept his notebook by subject, with an index at the back so any entry could be found again in a minute (see [[Locke on indexing]]).1 The point was never the copying. It was the finding.

Seneca gives the same advice about reading: gather from many books, then blend what you gathered into one taste of your own.2 That is the part folders never did for me.3

So, fewer categories and more links. Let the index do the work.

  1. 1Linked note

    Locke on indexing

    Three other notes link here too.

  2. 2Backlink

    Reading log, March

    Quotes the same letter from Seneca, and now points back to this page.

  3. 3Related, from 2023

    Why I stopped using folders

    Resurfaced while you were writing, because both notes are about finding things again.

Index

A

  • Ask your notes, 16
    • answers cite your own notes, 16

B

  • Backlinks, written for you, 4

C

  • Capture, 11
    • quick-capture shortcut, 11
    • voice memos, transcribed, 11

D

  • Daily notes, 11

E

  • Encryption, end to end, 23, 29

G

  • Graph of your ideas, 16

H

  • Highlights from books and articles, 11

L

  • Links, 4; see also Backlinks

M

  • Markdown, plain files on disk, 23

R

  • Related panel, 16
  • Resurfacing, 4, 16
Reading glasses resting on a laptop at a wooden desk

Capture without stopping to file.

A shortcut from any app, the web clipper, your phone’s share sheet, or a voice memo that arrives as text. Highlights from what you read land in your daily note.

Old notes come back on their own.

As you write, the Related panel brings up older notes on the same idea. The graph shows how it all connects.

You ask: what did I decide about folders?

You stopped using them in 2023 and moved to links, because entries were easier to find through an index than a hierarchy.12
1 Why I stopped using folders 2 On keeping a commonplace book

Ask your notes answers from your own writing, and cites every note it used.

What people who keep notes in Kept say

““I used to lose the best lines in a drawer of notebooks. Now they find me while I’m drafting.”
Marguerite Aubry, Novelist
““Three years of fieldwork, and Kept still connects an interview from the first month to what I wrote this morning.”
Tomasz Wierzbicki, PhD student in sociolinguistics
““It answers my questions with my own notes and shows its sources. That is the only kind of answer I trust.”
Adaeze Nwosu, Research scientist, soil ecology

Your notes are yours.

Every note is a plain Markdown file in a folder you choose. Sync is end-to-end encrypted, so only your devices can read it.

~/Kept/Reading/On keeping a commonplace book.md
---
created: 2026-05-14
tags: [reading, method]
---

# On keeping a commonplace book

Locke kept his notebook by subject, with an index
at the back. See [[Locke on indexing]].

> Gather from many books, then blend them
> into one taste of your own. (Seneca, Letter 84)

#commonplace #retrieval

Pricing

Free

$0

for as long as you like

Unlimited notes on one device, plus the web. Links, backlinks, daily notes and the Related panel.

Start free

Pro

$8

a month, billed yearly

Encrypted sync across all your devices, Ask your notes, and version history for every page.

Upgrade from inside the app, any time.

Kept runs on Mac, Windows, Linux, iPhone, Android and the web. There is no team plan; a commonplace book is kept by one person.

Begin your own commonplace book.

No card needed. The free plan has no time limit.

Kept

How it worksIndexYour filesPricing

© 2026 Kept