改善Kaizen · Continuous Improvement
Save articles and RSS feeds as clean Markdown, from the app or your browser, mark the passages that matter, and let Claude or ChatGPT search everything you have read while you work on the hard problem in front of you.
What you read says a lot about you. Kaizen keeps it where it belongs: on your machine, locked with a key only your machine holds.
When you connect an agent, it reads your library through a server that runs on your computer, and only what its Kaizen tools return reaches the agent you chose.
Your articles, highlights, notes and feeds live in a database on your computer. Saving and reading work without an account.
The library is encrypted with SQLCipher under a random key kept in your system keychain. Copied off the disk, the file is unreadable.
No Kaizen account, no cloud copy, no analytics. Kaizen goes online only to fetch the pages you save, their images and the feeds you follow.
How it works
Problem solvers read to understand, then reach back for what they read. Kaizen is shaped around that loop.
Paste a link, or click the Kaizen button in your browser, and the app extracts the article itself. No extraction server, no account to set up.
Select a passage to highlight it, add a note in your own words, and tag the article so it lands with related work. Kaizen remembers where you stopped.
Connect Claude or ChatGPT and it can search your library, open an article with your highlights and notes, and cite where each idea came from. It can file things for you too.
Features
Every plan includes everything here.
A toolbar button for Chrome, Brave, Edge, Chromium, Vivaldi and Arc, or Alt+Shift+S. The browser hands over the page as you see it, so pages you’re signed in to and pages built with JavaScript save too.
Get it on the Chrome Web StoreFollow RSS, Atom and JSON feeds, refreshed every 30 minutes. Items stay apart from your library until you save one, and read items clear out after 60 days.
Take any article out of Kaizen as a Markdown file or a PDF, lead image included, saved wherever you choose.
Kaizen remembers your reading position in every article, and switching between long pieces stays quick.
Serif, Sans or Mono type, three column widths, adjustable text size, and Light, Sepia, Dark and Amoled themes. Find any word in the article you’re reading.
Share a passage through the system share sheet, download an article again when its page changes, and restore anything from the Trash for 30 days.
Kaizen for Claude and ChatGPT
Kaizen ships with a Model Context Protocol server inside the app. Your agent asks for what it needs, and Kaizen answers from your library on your machine. Ask, and it can save and file articles for you too.
I’m giving a short talk on building better habits next week. What have I saved about it?
search_articleslist_highlightsget_articleYou’ve saved three pieces on it. The idea you highlighted most is to make the first step so small it feels silly to skip.
Your note on Small Steps, Kept Daily says you tried that with ten minutes of reading before bed and kept it up for a month. That story could open the talk.
From Small Steps, Kept Daily and The Myth of Motivation, in your libraryPerfect. Tag all three “talk prep”, and archive the one on motivation. I won’t need it.
update_articleupdate_articleAll set. The other two are waiting under talk prep whenever you sit down to write.
| Tool | What your agent can do |
|---|---|
| Read | |
| search_articles | Search titles, authors, descriptions, URLs and full text, filtered by list or tag. |
| get_article | Read an article’s Markdown, in pages for long pieces, with its highlights and notes. |
| list_highlights | Review highlights across the library, by text, tag, color, note or date. |
| list_tags | See how the library is organized and how many articles carry each tag. |
| Change | |
| save_article | Download a link and save its article, with tags if you like. |
| update_article | Mark an article read, starred or archived, and add or remove tags. |
| trash_article | Move an article to the Trash, where you can restore it. |
The change tools are marked as such, so an agent that asks before changing things asks before these. The example conversation is an illustration of how a session reads.
In Kaizen, open Settings and find AI assistant.
On the Claude tab, choose Add to Claude
Kaizen builds a Claude Desktop extension for your installation and Claude asks you to confirm. It keeps working when Kaizen updates.
For Claude Code, copy the command Settings shows, with the path to your installation filled in:
claude mcp add kaizen -- /path/to/Kaizen mcpIn Kaizen, open Settings and find AI assistant.
On the ChatGPT tab, choose Add to ChatGPT
Kaizen adds itself to Codex’s config, which the ChatGPT desktop app, Codex CLI and Codex IDE extension all read.
Restart ChatGPT or Codex to load Kaizen.
Or copy the Codex CLI command Settings shows, with the path to your installation filled in:
codex mcp add kaizen -- /path/to/Kaizen mcpPricing
The trial includes everything: the reader, feeds, highlights, browser extension and agent tools. It starts when you first open Kaizen, with no card or account, and nothing is charged when it ends.
Try every feature before you pay.
No card, no account, nothing to cancel
Every feature, renewed yearly.
About $4 a month, one computer, cancel anytime
search_articles to subscribe_feedFor readers who would rather pay once.
For the first 500 buyers, then $129
Download
Download Kaizen and open it: the trial starts then, with no card or account. When you buy a license, enter its key in Settings under License.
Macs with Apple silicon (M1 or later). Intel Macs aren’t supported.
Open the disk image and drag Kaizen to Applications.
Download for MacWindows 10 or 11, 64-bit
Windows may warn that it doesn’t recognise the app. Choose More info, then Run anyway.
Download for WindowsAlso as .msi
64-bit (x86_64)
Download AppImageRelease notes and all files on GitHub. Kaizen updates itself when a new version is out.
To save pages from your browser, add the Kaizen extension from the Chrome Web Store, then choose Connect in Kaizen’s Settings under Browser extension.
Questions
It can save links, mark articles read, starred or archived, change their tags, move them to the Trash and edit highlights. Each of these is flagged as a change, so an agent that asks first will ask. Nothing it does deletes an article for good, though deleting a highlight can’t be undone.
Only what a tool call returns: search results, an article’s text, highlights and notes, or your tags. Articles in the Trash are left out.
Yes, unless you trust everything in your library. Your agent reads the text of saved pages, and a page can be written to mislead it into changing your library or sending what it read elsewhere.
No. Kaizen’s server runs on your computer, and ChatGPT on the web connects only to servers on the internet. Use the ChatGPT desktop app or Codex instead.
No. Kaizen keeps your library in an encrypted database on your computer, with its key in your system keychain. Saving and reading work without any Kaizen account.
Most articles and blogs. When you paste a link, Kaizen doesn’t run the page’s JavaScript, so a page that loads its text through scripts may not save. Save it from the browser extension instead: the browser sends the page as it rendered it, including pages you’re signed in to.