Osiris

One price. Everything included.

Try every feature for three months. If Osiris stays, it costs one small monthly price — no tiers, no add-ons.

Trial

Get to know Osiris

€0

for 3 months, with an account

Create account

Every feature, every update
No payment details, no licence key — the trial comes with your account and simply ends.
Your notes stay yours, also after the trial

For everyone who codes with Claude every day

€4.99 / month

incl. VAT · cancel every month

Try free for 3 months

Ultrabrain, Memory, Voice, Studio, Terminal, Editor
Cancel monthly: the subscription runs until the end of the month you paid for.
Explore, Social and the plugin for IntelliJ

Launch offer

For our first users

The first 100 registered users get Osiris free for 1 year

Create account

All of Osiris — every feature, every update
No payment details, no subscription — it simply ends
One place per person and device · Conditions

Osiris works through Claude Code with your own access — a Claude plan that includes Claude Code, or an API key. Anthropic bills that usage under your plan, never us, and we add nothing on top. How Osiris uses Claude

Payment via Tebex: you buy the subscription from Tebex as merchant of record — they issue the invoice and handle VAT. Our terms of service apply.

Why Osiris

Claude Code writes the code. Osiris gives it a memory, your rules and one window for everything around it.

Built on Claude Code

Osiris doesn't replace Claude Code, it builds on it — with your own access. Your CLAUDE.md keeps working outside Osiris.

A memory that lasts

After every conversation Osiris files what happened as wiki pages — the schema asks every paragraph to name its source.

Your files, on your machine

Ultrabrain and Memory are plain Markdown in your Documents folder — readable without Osiris. What you send to Claude goes to Anthropic, just like with Claude Code.

Six tools, one window

Each one sits in the sidebar, a click away — no second app, no switching back and forth.

Get started

Create an account, download the installer for your system and code with Claude in minutes. One installer per system — nothing to set up by hand.

Account required · 3 months free, then €4.99 a month · cancel anytime

Desktop

All of Osiris in one app — chat, Studio, editor, terminal and voice. Opens in its own window.

macOS .dmg · Apple Silicon & Intel · macOS 12 or later Download

First start on macOS

The app isn't notarized by Apple, so macOS asks once:

Open Osiris.dmg, drag Osiris onto Applications, then open Osiris from Applications — or double-click Osiris inside the DMG and it moves itself there.
macOS says Not Opened: click Done, then System Settings → Privacy & Security → Open Anyway (at the very bottom).
Confirm with your password or Touch ID and click Open Anyway once more. That's it — from now on Osiris opens like any app.

On macOS 12, Open Anyway is under System Preferences → Security & Privacy → General.

macOS says “Osiris” is damaged? Then open Terminal, enter xattr -cr /Applications/Osiris.app and open Osiris again.

An older Osiris open? No problem — the new version takes over and closes it.

Windows .exe · Windows 10 & 11 · signed · no admin rights Download

First start on Windows

The installer is signed. Because it is new, Windows may still ask once or twice:

Your browser says it “isn't commonly downloaded”: in Edge … → Keep → Show more → Keep anyway, in Chrome Keep.
On first start, Windows may say it protected your PC: More info → Run anyway.

Windows shows our name as the publisher. These notes disappear on their own as more people install Osiris.

Linux .deb · .pkg · .tar.gz · amd64 & arm64 Download

Installing on Linux

Ubuntu, Mint, Debian — .deb

.deb for Ubuntu, Mint and Debian, amd64 for almost every PC. Double-click the downloaded file: your software center opens → Install.

Nothing opens? Then in a terminal: cd ~/Downloads && sudo apt install ./osiris-amd64.deb

Arch, CachyOS, Manjaro — .pkg

Install it in a terminal: sudo pacman -U ~/Downloads/osiris-x86_64.pkg.tar.zst

Fedora, openSUSE and others — .tar.gz

Unpack and install it in a terminal: cd ~/Downloads && tar -xzf osiris-linux-x64.tar.gz && sudo ./osiris-linux-x64/installieren.sh

On ARM, take the files with arm64 or aarch64 in their name.

Then start it anytime from your app menu — without a menu with /opt/osiris/huelle/osiris.

More ways to work

Osiris where you already are — and your account in the browser.

IntelliJ IDEA Chat with Claude and browse your Ultrabrain right inside IntelliJ. What the plugin does Plugin

Installing the plugin

IntelliJ → Settings → Plugins → ⚙ → Install Plugin from Disk…

Customer area Licence, downloads and Social in your browser. Open

Osiris in one minute

The real app · chat, terminal, editor, Studio and Ultrabrain · with sound

One app around Claude Code

Everything you need to code with Claude sits in one window — and all of it shares the same memory.

Ultrabrain

Ultrabrain: your rules and notes, always at hand

Rules, notes and decisions live as linked Markdown, one branch per project. Claude reads what applies before it writes a line — and Osiris keeps your CLAUDE.md in sync.

One branch per project, one rulebook for everything
Linked notes in plain Markdown — open them in any editor
Your CLAUDE.md stays in sync, even outside Osiris

How Claude Code gets a memory

Memory

Memory: Claude remembers what you worked on

After every conversation Osiris condenses what happened into wiki pages. Next time Claude finds the answer instead of asking you again.

Pages for entities, concepts, answers and comparisons
The schema asks every paragraph to name the chat it came from
Filed on its own after ten quiet minutes — no extra step

An LLM wiki instead of RAG

Voice in Osiris: the holographic orb in the middle, the conversation with Jarvis on the right

Voice Beta

Voice: just say it — Jarvis listens

Jarvis listens, answers and acts: opens projects, starts builds, hands questions to Claude. Which apps he may touch, you allow one by one.

Call Jarvis by name, then just talk
Answers aloud — with ElevenLabs or your system voice
Opens views, chats, projects and the apps you allow

More about Jarvis

Studio in IntelliJ style: project tree on the left, ShopMenu.java open, Gradle tasks on the right

Studio Beta

Studio: your Java projects, like in IntelliJ or VS Code

Project tree, tool windows, build and run — in Osiris's design, on the same files as your IDE. What you save here, it sees at once.

Project tree, tool windows, Maven and Gradle
Build, run and debug — then drag the jar out
Works on the same files as your IDE

More about Studio Minecraft plugins with Studio

Terminal

Terminal: a real shell next to your code — type osiris for Claude

zsh, bash or PowerShell — the shell of your system, started right in your project. Several tabs, and folding it away ends none of them.

Your system shell: zsh, bash or PowerShell
Several tabs, each started in your project
Fold it away — every tab keeps running
Type osiris and Osiris works right there — Claude in the background, with your Ultrabrain, on Windows too

More about the terminal

Editor

Editor: fast, for every text file

Tabs, syntax colours, find and replace. Double-click a file and it opens in its own window — line endings and encoding stay exactly as they were.

Opens any text file — also by double-click
Line endings and encoding stay exactly as they were
Tabs, syntax colours, find and replace

More about the editor

Up and running in three steps

01
Download and sign up
Create an account and get the installer for your system — three months free, no payment details.
02
Connect Claude
Sign in under Settings → Claude. Osiris works through Claude Code with your own access.
03
Work with a memory
Open a project and write your rules once. Claude reads them in every chat, and Memory keeps what you learned.

Frequently asked questions

Product

What is Osiris?

Osiris (osirisui.com) is a desktop app for Windows, macOS and Linux that builds on Claude Code: Ultrabrain, Memory, Studio, terminal, editor and the voice assistant Jarvis — around Claude, with your own Claude access.

Is Osiris made by Anthropic?

No. Osiris is an independent product. It uses Claude through Claude Code with your own access; it has no AI model of its own.

Does Osiris replace Claude Code?

No, it builds on it. Claude Code does the work; Osiris adds the memory, the rules, Studio, editor, terminal and voice around it. Your CLAUDE.md keeps working outside Osiris. Osiris as a GUI for Claude Code.

Is Osiris finished?

Not yet. Osiris is still in development, the official launch is coming soon. Voice and Studio are marked as beta. Where Osiris stands.

Which systems are supported?

Windows 10 and 11, macOS from 12 on Apple Silicon and Intel, and Linux as .deb, .pkg or a universal archive for amd64 and arm64.

Why does Windows ask before the first start?

The installer is signed, but new files have no reputation with Windows SmartScreen yet. Choose More info → Run anyway; the note fades as more people install Osiris.

Which languages does Osiris speak?

The app and this website are in English and German. Claude answers in the language you write in.

Pricing

Do I need a Claude plan?

Yes. Osiris works through Claude Code with your own access — a Claude plan that includes Claude Code, or an API key. Anthropic bills that usage directly; Osiris costs €4.99 a month on top. Installing Claude Code on Windows.

What happens after the trial?

It simply ends — you never entered payment details. If you want to keep going, subscribe in the app or the customer area and cancel any month.

How do I cancel?

In the customer area, or with the link in the email Tebex sent you for your purchase. The subscription runs until the end of the month you paid for — then it simply stops.

Who sends the invoice?

Tebex. You buy the subscription from Tebex as merchant of record; they issue the invoice and handle VAT.

Your data

Where do my notes and chats live?

On your machine. Ultrabrain and Memory are Markdown files in your Documents folder, readable without Osiris. What you send to Claude goes to Anthropic, just like with Claude Code.

Does this website track me?

No. No analytics, no advertising, no scripts from other sites — it only stores what it needs to work, like your language and appearance. What is stored.

Where can I read the details?

In the privacy policy and on the page about AI transparency.

In use

Already used by

Studios, projects and individual developers code with Osiris — with their knowledge in its brain.

Osiris: Next-generation coding with Claude Code.