Best Free Alternatives to HackMD in 2026

Digital publishing platform that converts PDFs and office files into HTML5 flipbooks, interactive publications, and embeddable web content.

Art-inspired writing platform for creating stories, picture books, and other creative writing projects with illustrated prompts.

Etherpad is an open-source real-time collaborative editor with visible authorship, full revision history, and self-hosted control.

Minimal collaborative writing tool focused on drafts, revision history, editorial feedback, and version-aware writing workflows.

Reedsy Book Editor, now part of Reedsy Studio, helps authors plan, draft, edit, and format books for professional export.

Online book creator for students and teachers to write, narrate, illustrate, and publish digital or printed storybooks.

Publishing platform for writing articles and essays to a built-in reading audience without managing your own website.

Author platform for writing, formatting, and connecting with publishing professionals such as editors, designers, and marketers.

Online learning commerce platform for selling courses, communities, memberships, and digital education products.

Calmly Writer is a distraction-free writing app with online and desktop modes, markdown support, backups, and a minimalist interface.

Course and creator-business platform for selling courses, coaching, memberships, and digital products online.

Classroom creation platform for multimedia books, comics, journals, reports, and student publishing with simple collaborative workflows.