Thoth

Pre-release

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Your private web memory

Your internet, remembered.

Thoth is a browser extension that quietly keeps every page you actually read, then finds it again from whatever you still remember.

Home → query → passage

  • 10s

    Reading threshold

    A page is kept once it actually holds you.

  • 0

    Requests signed out

    Capture, search and notes stay on this device.

  • 1,000

    Free memories

    Local search and collections. No account.

  • Ctrl K

    Search palette

    Find a page from whatever you still remember.

You read more than you can remember.

You remember reading it.
Just not where.

What it is

Not history.
Not bookmarks.

Your browser already keeps two records of everything you read. Neither of them is the one you want three weeks later.

  1. History

    14 Mar 202623:42

    slowpost.co/features/a-quiet-walk-through-kyoto-after-dark

    Where you went, in the order you went there. Exact, complete, and no help at all three weeks later.

    History remembers visits.

  2. Bookmarks

    A Quiet Walk Through Kyoto After Dark

    What you decided, in advance, was worth keeping. Which means it only holds the things you already knew to save.

    Bookmarks remember saves.

  3. Thoth

    quiet streetskyotoat night

    What you actually read, found again from whatever you actually retained.

    Thoth remembers reading.

The archive

One archive for all of reading.
Recall for every fragment.

Everything below is one product doing three things. Start with the one you doubt most.

  1. 01Find it againThree descriptions of one page, each vaguer than the last.
  2. 02Kept two waysAutomatic capture, plus the sentence you save on purpose.
  3. 03Grows with youWhat the archive looks like after a few months of reading.

01 · Finding it again

You do not have to remember where.

Two ways of asking for the same page, typed at the same time. The gold is where your words actually landed on it.

Looking forthe Kyoto piece, read one night in March

The gold is drawn by the extension wherever a word you typed is literally on the page. When nothing is marked, nothing of what you typed was there, and the page came back anyway.

Lexical search is local, always on, and needs no account. Semantic search is opt-in: it sends your query and bounded page text to Thoth's embedding service to be turned into vectors, which are then stored and ranked on your machine. Your page addresses are never sent.

02 · How something is kept

Remember the page automatically.
Keep the important part intentionally.

0:00

After the crowds disappear, the lanes near Gion go silent enough to hear your own steps. The guidebooks send you here at dusk, which is the one hour when the quiet has not arrived yet. Come back at eleven and the city gives you something it will not give anyone in daylight.

Remembered

Saved passage

AutomaticThoth watches how long a page actually holds you, across tab switches, lost focus and idle time. Past a threshold it keeps the page. You do not file anything, and there is no decision to forget to make.

IntentionalSome sentences are the reason you read the thing. Select one and it is kept exactly, as a passage attached to the memory, searchable on its own and weighted above the body of the page.

03 · After a few months

It stops being a list.
It starts being an archive.

Nothing here was filed by hand. The shape below is what accrues on its own once Thoth has been running long enough to have an opinion about what you read.

  • 342

    Memories kept

    across 96 sources you actually read

  • 23

    This week

    9 new sources, steady reading

  • 18

    Resurfacing

    older pages you came back to

Library

342 memories

  • A Quiet Walk Through Kyoto After Darkslowpost.co·6 months ago·2 passages·Japan, someday
  • Why Your Attention Stays Behind When You Switch Taskslabnotes.ink·3 weeks ago·1 passage·Focus
  • Understanding PostgreSQL Transactions Without the Jargonpracticalpostgres.dev·2 months ago·4 passages·read again
  1. CollectionsGrouped by hand when a theme shows up, not required for anything to work.
  2. FavoritesThe few you actually want on top.
  3. PassagesSentences you kept, searchable on their own.
  4. ResurfacingPages you returned to months later, which is the archive telling you what mattered.
  5. Related memoriesOther things you read that are about the same idea. Needs semantic indexing, so it is opt-in like search.

See what one fragment can find.

The search above is the product. Try it with the vaguest description you can still put into words, then take a place in line.

Try the live searchJoin the waitlist

What leaves your machine

Your memory belongs to you.

A tool that remembers what you read has to be exact about this, so here is the whole of it rather than a promise.

Signed out, this is everything

  • Capture and the reading threshold
  • The archive itself, in IndexedDB
  • Lexical search, notes, passages
  • Collections, favorites, blocked sites
  • Deletion and export

No account. No requests. Nothing to switch off.

And only if you turn it on

Semantic search

Opt-in, and needs an account

Sends
Page title and bounded chunk text, plus the query you type
Never
Page addresses are never sent

Vectors come back and are stored and ranked on your machine.

Encrypted sync

Paid plans, at launch

Sends
Ciphertext only, to private object storage
Never
Keys stay on your devices

Included in Pro and Max. Not generally available yet.

Blocked sites are a list you control, and a page on it is never read, never extracted and never stored. Banking, work, anything you would not want an archive of.

Across browsers

It can follow you without becoming someone else's dataset.

Sync moves an encrypted copy of the archive, not your browsing. The service stores ciphertext it cannot read.

  • Chrome

    Built and reviewed

  • Brave

    Built and reviewed

  • Firefox

    Built and reviewed

  • Thoth Web

    Read-only in any browser

Pro covers one browser. Max covers three. Thoth Web reads the same archive in a tab without installing anything.

Plans

The archive is free.
Paying changes how you search it.

Five things are gated and nothing else is. Pro and Max are the same product: the only difference between them is how many browsers they cover, so pick on that and nothing else.

Free$0forever, no accountPro$5.99a month, or $59 a yearMax$9.99a month, or $99 a year
Memories kept1,000UnlimitedUnlimited
Semantic searchAsk for a page the way you remember it
Encrypted backup
Sync across browsers
Browsers coveredThe only line where Pro and Max differOneThree
Start hereJoin the waitlistJoin the waitlist

In every plan, free included

  • Lexical search, always local
  • Automatic capture
  • Collections and favorites
  • Saved passages and notes
  • Blocked sites
  • Export and deletion

Thoth has not launched, so nothing is charging yet. Paid plans include a trial when it does. Encrypted sync is built and is not generally available.

Before you install it

Reasonable questions.

  • Does it slow my browser down?

    Thoth watches timing signals the browser already emits and does nothing else until a page passes the reading threshold. Extraction runs once per page, at that moment, and never again for the same route. There is no published benchmark yet, so that is a description of the work it does rather than a promise about milliseconds.

  • How much storage does it use?

    The archive lives in IndexedDB and grows with what you read, mostly text. There is no fixed cap on paid plans and no way to quote an honest average before launch. Free stops at 1,000 memories, which is the only hard number that exists today.

  • Can I keep it away from certain sites?

    Yes. Blocked sites is a list you control, and a page on it is never read, never extracted and never stored. Nothing is captured for it to forget later.

  • What actually leaves my device?

    Signed out, nothing. Turning on semantic search sends page titles, bounded chunks of page text and your queries to the embedding service; page addresses are never part of that. Encrypted sync sends ciphertext. Everything else stays where it was made.

  • What happens if I uninstall it?

    The archive is local, so removing the extension removes it. Export it first if you want to keep it: memories, notes and passages come out in a file you own. Vectors, sessions and diagnostics are not part of the export.

  • Do I need an account?

    Only for semantic search, which is the one feature that needs the embedding service. Capture, the archive, lexical search, collections, favorites, notes, blocked sites, deletion and export all work signed out.

Six months laterquiet streetskyotoat night

Reading arrives as noise.
Memory is what stays.

One email when Thoth opens. Nothing else, ever.