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Markdown ViewerFormiko
Free

The Apache-2.0 licensed application is distributed without charge.

 Free

Free and open source under the BSD-3-Clause license.

Windows, macOS, Linux, Web Linux
  • Live preview renders diagrams, maps, charts, math, and 3D models.
  • Organizes documents into workspaces and folders with search and tabs.
  • Live preview for reStructuredText and Markdown
  • Supports multiple Docutils output formats
  • Remote diagram rendering, GitHub import, and sharing require network access.
  • The Vim editing mode requires an embedded Neovim instance.
Downloadable app, Web application Downloadable app
Open source Open source
License: Apache-2.0 License: BSD-3-Clause
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 6, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.