Documentation

Web app

Local folders in the browser, without uploading them.

The Web app at /app has two deliberately different modes. If folder permissions, sync, or an invitation get stuck, see Troubleshooting.

Local folder and cloud at a glance

Local folder in the browser: The files live in your folder on your computer. Nothing is uploaded and there is no collaboration. The Web app at /app requires sign-in; only the browser demo works without an account.
Cloud workspace: The files live in the server's database. You need an account, files are imported, and collaboration runs through the sync server.

The full comparison is in Local or cloud.

Real screenshot of the Web app: the file Kapitel 1 from a local folder as a map with three child nodes

Local folder in the browser

Use the File System Access API to open a real folder. Files stay on your computer — nothing is uploaded, including attachments and PDFs. A preview is built from the local handle rather than from a server.

The permission state is visible. A read-only folder shows a Read only notice and a button to request write access. The request only happens after a click because browsers reject permission requests without a user gesture.

The API is available in Chrome and Edge. Firefox and Safari do not support it.

Real screenshot of the Web app: a local folder is open, the Read only notice sits next to the folder name

Opening a folder, step by step

In /app, choose the folder icon (tooltip Open local Markdown folder) at the top.
Grant access to the folder in the browser dialog.
If Read only appears next to the folder name, the folder is only shared for reading. Click the notice to request write access; the browser then asks you.
Open a file from the selector next to the folder name.

New file from a template

With write access, + File creates a new mind map in the folder. In the dialog you choose the folder, the Template, and a name. Built-in templates are Lecture, Cornell, Literature note, Exam prep, and Project; Blank only creates the heading. Your own templates are Markdown files in the Vorlagen folder of your workspace.

Real screenshot of the Web app: the new-file dialog with folder, the Lecture template, and a name

Browser demo

The browser demo needs no account. It loads a built-in template; your Markdown stays in the browser unless you download it. Paste your own Markdown on the left or choose a local file.

Real screenshot of the browser demo: a Markdown input on the left, the map of the Software Architecture Map template on the right

Cloud workspace

Cloud workspaces require an account. Documents are stored in the database and collaboration uses the sync server. Registration (open, no invitation needed) is described in Free trial account.

When a sync server is connected, the header shows the sync status next to the file title, for example Synced. It only appears in wide windows (1536 pixels and up).

Real screenshot of the Web app header: the sync status Synced next to the file title Graphentheorie

To import a Markdown file, sign in, select the cloud workspace, choose Import Markdown from the toolbar or command palette, select a .md or .markdown file, and open it from the file list. From that point the file is stored in the cloud workspace and can use sync and collaboration.

Do not upload credentials, secrets, third-party personal data, or production-critical content with the free trial account. A reduced Markdown example is enough for an error report.

Feedback and views

First have a look at Troubleshooting, which covers the common cases.

Signed-in free trial account users use the Feedback button. A screenshot is required; a short video is optional. Do not upload private Markdown, credentials, or third-party personal data. The Document view shows the opened file; the Workspace view shows folders, files, and references.