Mnemosyne OS
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Features

Every feature, in one place.

Search by word, or pick a family. Everything here runs in the version you can download today.

60 features

  • The neural map

    Your memory drawn as a graph you move through, in 3D, in 2D or as an atlas.

    Memory

  • Vaults

    One vault per domain of your life. Each vault is a file on your disk.

    Memory

  • Watched folders

    A file dropped in a watched folder enters memory, and again each time it changes.

    Memory

  • Long documents, whole

    A 300-page book enters memory from the first page to the last.

    Memory

  • Search in seven languages

    Exact-word search reads English, French, Spanish, German, Portuguese, Russian and Chinese.

    Memory

  • Words-only vaults

    A switch in the vault panel. The vault is searched by its words, with no vectors to compute.

    Memory

  • Pause vectorisation

    Your words are indexed right away. The vectors follow later, after a set time or at the next start.

    Memory

  • Portable cartridge beta

    Carry a memory on a drive and read it back on another computer. Your keys stay home.

    Memory

  • Memory health

    A panel lists what it checked in your vaults, and what it could not check.

    Memory

  • Synaptic P2P beta

    Share a vault read-only, or keep one together. Everyone holds their own copy, with no server in between.

    Memory

  • Memory Packs

    A knowledge app downloads public data into its own vault: laws, history, health, science, languages. The chat answers from it.

    Memory

  • The chat that cites your files

    Ask a question. The answer is written from your own documents and names the one it came from.

    Answers

  • Verified answers

    A second pass checks each sentence of the answer against its sources and marks the sentences without proof.

    Answers

  • Choose which vaults answer

    One vault, several, or Auto, where the model picks the vaults for each question.

    Answers

  • The model you choose

    A cloud model with your key or with credits, a local model, OpenRouter, or your own server on your network.

    Answers

  • A built-in manual

    Ask how Mnemosyne OS works. The chat answers from its own manual, in English, French or Spanish.

    Answers

  • The chat acts

    Ask the chat to change your agenda or your to-do list. It makes the change and logs it in a journal you can read.

    Answers

  • Formulas in the chat

    Answers draw the math formulas written in TeX.

    Answers

  • Ask about a period

    Ask the chat about a period, and a chip under the answer opens MnemoClio on that year.

    Answers

  • Starter questions

    An empty chat and a freshly opened orb offer a few first questions.

    Answers

  • The voice

    You talk to it and it answers out loud. The voice engines run locally, or through ElevenLabs.

    Voice

  • Commands, spoken or typed beta

    "Open my agenda", "close the notes", "full screen". You can teach the app your own phrases.

    Voice

  • Conversation recorder

    Your microphone on one track, the call on the other. Each line of the transcript has its time.

    Voice

  • Dictation

    Speak instead of typing. Whisper transcribes on your machine, from your first word to your last.

    Voice

  • The weather from the orb

    Ask the orb for the weather, and a card appears.

    Voice

  • The document reader

    Drop a PDF, an EPUB or a Word file. It becomes a library that reads itself to you, one word at a time.

    Capture

  • The capture browser

    Keep a page as text, as a PDF or as a screenshot, or take all its images at once. You review the batch first.

    Capture

  • Ask about the open page

    In the capture browser, question your memory about the page you are reading. The cost is shown before and after.

    Capture

  • Drop a folder on the board

    The folder is watched where it lives. Nothing is copied.

    Capture

  • AFFiNE import

    Your AFFiNE workspace becomes one Markdown file per document, images and links included.

    Capture

  • Agent conversations in memory

    Your Claude Code and Antigravity sessions go into a vault, project by project.

    Capture

  • Several desktops

    Work and personal on the same board. Each desktop keeps its own windows.

    The board

  • Describe your desktop

    On a blank desktop, describe what you want. The app proposes the windows to place.

    The board

  • To-do lists

    Lists, repeating alarms, cards pinned on the board. One button turns a conversation into a plan.

    The board

  • Agenda

    Appointments with reminders. A day opens in its own window, and your agents can add to it.

    The board

  • Shortcuts on the board

    Right-click the board to pin a link to a website, with its own icon and a reminder.

    The board

  • Hand gestures

    Pinch a window to move it, spread your fingers for full screen. The camera stays off until you turn it on.

    The board

  • The arcade

    On the 2D neural map, fly a ship through your memory. Each wave of enemies ends with a boss.

    The board

  • Apps on their own desktop

    An app can open several windows laid out on a desktop of its own. Closing one window closes the set.

    The board

  • A page for every app

    Every app in the Hub has its photos, long description, rating, reviews and version on its own page.

    The board

  • MCP server

    One open MCP server hands your agents the memory, the backlog, the calendar and the voice.

    Agents

  • MnemoHermes beta

    Your assistant, called by the name you gave it. Write to it on Telegram, typed or by voice note.

    Agents

  • Agent cards

    Each coding agent gets a card on the board. It says what the agent waits for, and you can answer it there.

    Agents

  • Agents in herdr

    Settings › Agents installs herdr. You see each agent’s state and last lines, and you can answer it or stop it.

    Agents

  • Your own machines

    Pair two of your computers. Their agents show on your board, and one machine can draw the pictures the others ask for.

    Agents

  • Agent documents

    A session’s conversation becomes a document you read in Notes, in its own window.

    Agents

  • Ariadne

    Reads what your coding agents write on disk, and tells you when two of them work on the same tree.

    Agents

  • The Dev desktop

    A desktop for building with agents, with a live preview of your app.

    Agents

  • The Dev section of the Hub

    Plug Claude Code, Codex, Antigravity or Cursor into your memory, with a briefing in your language.

    Agents

  • The image studio

    Describe an image, retouch it, cut out a background. On your machine, or through a cloud key.

    Creation

  • Cartridges

    Apps that live inside the OS and read your memory, from the MnemoHub store.

    Creation

  • Layers in the image studio

    Folders, a visibility eye, Ctrl+Z, a real crop. Text uses your own fonts.

    Creation

  • Data widgets beta

    Point a widget at a folder of CSV or Excel exports. It draws a dashboard.

    Creation

  • MAXIMUM vaults

    An answer drawn from a MAXIMUM vault stays on your machine.

    Control

  • Every call in the wallet

    One row per model call, with what it cost.

    Control

  • Encrypted API keys

    Your keys are stored encrypted, and an unencrypted key shows in red.

    Control

  • Security notices

    When a cartridge you use gets a security fix, a card tells you at startup.

    Control

  • Report a problem

    A button in every window. You see exactly what is sent before you send it.

    Control

  • Spending by route

    The wallet splits credits from your own keys, and folds the calls by day.

    Control