Get the Mycelium desktop app
Version 0.0.124, released 2026-11-02
Desktop app
Anyone can download the installer from this page. The app signs in against your Mycelium account, so downloading it is not the same as getting in.
Who this is for
You can download the app and sign in today. Opening a new brain happens in waitlist order, and the app tells you if yours cannot open yet. If you are not on the list yet, join it and we will email you when your spot comes up.
Personal: your own brain
Personal is a private brain for one person. You do not need a team: your email is your account.
Team: the workspace you were invited to
Team is one shared brain your whole company draws on, plus a private brain for each person. You join by invitation from your admin. Your email domain alone does not add you to a workspace.
Download the current signed build
The current production installer is signed and notarized for macOS. Windows and Linux downloads will appear only after their own signed production checks are complete.
Already have web access?
Open the real Mycelium web app. For Team, use the account that received the invitation. Your email domain does not choose a workspace for you.
Why this page
Personal customers and Team invitations both point here, so one permanent page always follows the currently activated signed release.
Mycelium · founded 2026