Your personal notebook, on your desk and in your pocket.

A quiet place for your journal, your tasks and your half-formed ideas, kept in plain text files that are yours. When you want a hand, an agent helps you expand and organize what you wrote, and your words stay yours.

Free while in early access  ·  macOS and Linux, iPhone in testing  ·  plain Markdown, always

Try it: the desk and the phone, on one note

Thock
Click anywhere in the note to write
Notebook · 214 notesPhone up to date
14:35
Write an , a line, a , or .

Click into today's note and type. The line under the caret shows its source and goes back to type when you leave it. Try - [ ] 16:30 Call Ana. On the phone, tick a line, write in the journal or ask a question, and watch the desk catch up.

Get to know yourself

Write a little every day and your own patterns start to show.

A safe place for your thoughts

Your words stay exactly as you wrote them, and any earlier version can come back.

Grow your ideas, privately

When you ask, an agent expands and organizes what you wrote, and your phone's copy travels encrypted.

Nothing between you and the page

No feed, no ads, and nothing you write is mined to sell you things.

Why it exists

Second brains already exist. None of them adapt to your taste.

People build this by hand: a vault of plain-text notes, a fast editor, an AI that reads the week and helps close it. It works, and it never transfers, because it's held together by conventions only its author understands.

The ones you can install have the opposite problem. They arrive finished: someone else's folder names, someone else's rituals, someone else's idea of what a good week looks like. You adapt to the tool, and it never adapts back.

Thock is neither, because there is nothing in it that isn't a file. The rituals, the folder structure, the templates, the theme, the font, the keybindings all sit in your vault in plain text. Ask your agent for a new Routine, a shorter weekly review, a quieter colour scheme, and it edits those files the way it would edit any others. Nothing is compiled in. Nothing is hidden from it.

  1. Your files, forever, in the open. plain Markdown in a normal folder · no database, no lock-in · if Thock disappeared tomorrow, your vault opens in any editor
  2. It appends. It never rewrites. synthesis lands under its own heading, like # Daily Closure · what you wrote stays exactly as you wrote it
  3. Bring your own brain. your own LLM, your own key: Claude, a local model, whatever you trust · Thock doesn't resell intelligence
  4. You act. It only advises. it computes exactly what to do next, but it cannot and will not do the important things for you · money moves when you move it
  5. History without the vocabulary. every meaningful change checkpointed in the background · restore any version of any note · nothing is ever called a commit
  6. Everything is editable, by you or your agent. rituals, templates, layouts, theme, font, keybindings · all files in your vault · rewrite them yourself, or just ask

On your phone

A pen for the notebook, not a second desk

The iPhone companion opens on today. Tick a line, add to the journal, catch an idea or a link, or ask your agent something on the walk home. It reads the same notebook the desk does, so there is nothing to set up and nothing to export.

It writes in a few small, safe places, and only by adding: a line under today's journal, a note in the inbox, a task in Soon. Deciding where things go waits for the desk.

Routines

Install a rhythm, not an app full of features

A Routine is one life-domain, packaged: its folders, templates, quick links and rituals. Enable the ones you want; ignore the rest. Each is defined by a readable file in your vault, so your own agent can author a new one from scratch.

Timeline: days and weeks

Today, Yesterday, This Week, Last Week. One keystroke each, filenames resolved for you. Wrap rituals read the day's tasks and commits and append an honest closure. A week review gathers it all every Friday.

wrap today · week review · open today

Backlog: nothing dies in yesterday's note

A plain backlog.md with Soon, Someday, and a dated Completed history. When you wrap a day, unfinished tasks are offered a place there; you confirm all, none, or some. Checking one off records it in today's note.

soon ↔ someday · categories · complete with a keystroke

Day planner: your checklist as a day

The right rail follows what you're reading. On a daily note it renders your task list as time blocks, calendar-style. Connect Google Calendar and the day's events appear inside the note itself, as ordinary checklist lines you can edit.

read-only toward Google · times corrected, your edits never touched

Inbox: capture anywhere, decide at the desk

A folder anything can drop a note into: a link shared from your phone, an email you label, a file dragged in. A triage ritual proposes a destination for each item and files only what you confirm. Capture is dumb and instant; deciding happens where you think.

phone share sheet · email label · plain files in a folder

Skills: rituals you can read

Every ritual is an inspectable Markdown file with a plain-language description and declared scopes: what it reads, what it writes, and whether it appends or edits. Trust comes from being able to open the thing and read it.

open it · edit it · or have your agent rewrite it

The editor

Built on the bones of a fast code editor, without the face of one

Thock inherits its editing core from Zed: native, instant, and happy in a ten-thousand-file folder. The code-editor chrome is gone: no diagnostics, no debugger, no source-control pane. What's left is a writing instrument.

Markdown that reads like a page. You tried it at the top of this page. While your cursor is elsewhere, heading markers and link syntax fold away, checkboxes draw as checkboxes, and wikilinks are visibly links. The line you're editing always shows its exact source. The file on disk never changes.

Keyboard, everywhere. Every panel is fully operable without the mouse: arrows or vim motions, your choice. Every action has a name and a binding. This page works the same way: press ?.

Your vault

Already keep a vault? Point Thock at it.

A Thock vault is a normal folder of Markdown, which means the one you already have probably is one. No import, no conversion, no migration. [[wikilinks]] resolve, your folder structure is respected, and everything Thock adds is a readable file sitting beside your notes.

Open the same folder in your current tools whenever you like. Nothing breaks, because nothing changed shape.

~/vault/
  2026-09-02.md  ← today, created on first keystroke
  2026-W36.md
  backlog.md
  inbox/
  routines/  ← what Thock adds: readable, editable, yours

Who it's for

Opinionated and personal, by design

Probably for you if

  • You already think in plain text and live on the keyboard.
  • You want AI woven into your life-admin (reviews, finances, journaling) without hand-building the plumbing.
  • You've tried to wire an editor, a vault, and an LLM together yourself, and kept the scars.
  • You want your notes readable in thirty years, by anything.

Probably not, if

  • You're looking for a team wiki or a shared workspace.
  • You want an AI that acts on your behalf. Thock advises; you act.
  • You'd rather have a database app with forms and views than a folder of files.

Early access

Free to download and test, by way of a short line

Thock is in early access. Leave an email and you'll get a download link as testing slots open, plus a note when things meaningfully change. Nothing else.

Already have an invite code? Download Thock.

Free while in early access · macOS and Linux · bring your own LLM key · your vault never leaves your machine

Your address is kept for this list and nothing else; reply to any note to be taken off it. How Thock handles your data.