Flat

Flat is a free, open-source diagram and mind-mapping app for macOS. Project flat is the Web, Windows and macOS client of Agora Flat open source classroom. It has 6,439 GitHub stars and is released under the MIT license. Its source code is on GitHub at netless-io/flat.

github.com/netless-io/flat (opens in a new tab)

Data as of Oct 28, 2026 from the GitHub API; description from the project's repository. Report an error

Download from GitHub View on GitHub

About Flat

Agora Flat Project flat is the Web, Windows and macOS client of Agora Flat open source classroom. 中文 You can build and run the Flat client without a server. This repository includes the following projects:

Key facts

Platforms	macOS
Interface	Desktop app
License	MIT (open source)
GitHub stars	6,439
Language	TypeScript
Last commit	Jul 8, 2026
Latest release	v2.3.6 (Jan 20, 2025)

Project health

MaintainedMaintained: last commit Jul 8, 2026.

Security policyPublishes a security policy on GitHub

Raw inputs behind the health label
Last commit	Jul 8, 2026
Latest release	v2.3.6 (Jan 20, 2025)
Releases, last 12 months	0
Releases, all time	32
Open issues	4
Open pull requests	9
Good first issues	3
Contributing guide	Yes
Security policy	Yes
Created	Aug 26, 2020

Health as of Oct 28, 2026, from the GitHub API. A label describes activity, not quality or security. How we label project health · Report a data error