Every page on the internet has a margin now — yours.
Reading something worth keeping? Highlight it and clip it — from your laptop or your phone. Then MARGIN reads along: it summarizes and tags every clip, quietly links the related ones, and hands it all back when you search by meaning, ask a question, or point your AI at it.
Select, click, saved
Highlight a passage on any site, hit ⌥⇧M — the quote and your thought land in that page’s margin.
Invite one reader
Mint an email-scoped link to a single page’s margin. They read, they comment. No account, revocable any time.
Your AI reads the margin
A remote MCP lets Claude sessions fetch everything you kept on a page or topic — summarize it, decide, push it onward.
It doesn’t just store your reading. It reads along.
The moment you save a clip, MARGIN goes to work on it — so months of scattered highlights become something you can actually ask.
Summarized & tagged
Every clip gets a one-line summary and topic tags automatically — no filing, no folders.
Search by meaning
Find what you kept even when you’ve forgotten the exact words. Paraphrase; it still lands.
It connects the dots
Related clips link themselves into threads across pages, so a topic assembles itself.
Ask your margin
“What did I keep about pricing?” — answered from your own notes, with the sources cited.
Nudges, not piles
Anything with a to-do becomes a gentle reminder — plus a weekly digest of what you kept.
Your AI reads it too
A remote MCP endpoint hands your whole margin to Claude — your reading becomes its context.
The Chrome extension
The cleanest way in. Clip the page and your selection with ⌥⇧M, and summon your whole margin back onto any page — highlights and all — with ⌥⇧H.
- ⌥⇧M clip this page + your selection
- ⌥⇧H show my margin on this page
- right-click → clip selection · clip page · open my margins
Prefer no install? Use the bookmarklet
Drag the button onto your bookmarks bar. On any page: select text (or don’t), click it — a small window opens with the clip ready to save. Works on any site, even strict-CSP ones.