Opensidian vs Logseq

Logseq describes itself as a privacy-first, open-source platform for knowledge management and collaboration. Opensidian is an open-source markdown notes app: notes are files in a folder on your disk, linked with [[wikilinks]], backlinks, tags and a graph view.

Differences

• Licence. Logseq is licensed AGPL-3.0. Opensidian is licensed GPL-3.0-or-later.
• Format. Logseq supports Markdown and Org-mode files. Its newer DB version stores graphs in a database and is in beta; Logseq itself warns that data loss is possible and recommends backups. Opensidian reads and writes markdown files.
• Features. Logseq includes PDF annotation and task management, plus plugins and themes. Opensidian has live preview, source and reading modes, a graph view and bookmarks, and runs Obsidian community themes and plugins.
• Platforms. Logseq has desktop and mobile apps. Opensidian release builds are Linux x86_64 only.
• Sync and collaboration. Logseq's DB version has a new sync and real-time collaboration feature, in alpha. Opensidian has neither; you sync the folder with a tool you choose.
• Price. Opensidian costs nothing and is non-profit.

When Logseq is the better choice

If you use Org-mode files, annotate PDFs or want your tasks inside your notes app, Logseq has those features. If you need a mobile app, Logseq has one and Opensidian does not.

When Opensidian fits

If you want to use an Obsidian-style vault, with Obsidian community themes and plugins, in an open-source app, Opensidian fits.

Moving from Logseq to Opensidian

Opensidian has no Logseq importer. The Markdown files of a file-based Logseq graph are plain .md files, so you can open a copy of that folder in Opensidian. Logseq-specific syntax is not converted, and Org-mode files are not markdown. A graph in the Logseq DB version lives in a database, not in markdown files, so Opensidian cannot open it directly.

More comparisons

All comparisons · Obsidian · Tangent · OneNote · Google Docs · FAQ · Security · Install Opensidian

Logseq is a trademark of its owner; opensidian is not affiliated with it.