Logseq vs Obsidian: pricing, features and which to choose

Logseq began in 2020 as an open-source project and grew into one of the best-known privacy-first alternatives to Roam Research and Obsidian. Its GitHub repository has more than 45,000 stars, and its code is licensed under the AGPL. A small core team, about four people according to its forum, builds the app with community contributors, and it is funded partly through Open Collective sponsorships. Logseq attracts students, academics, writers, researchers and software developers who think in outlines and want notes that link together without handing their data to a cloud service. It runs on Windows, Mac, Linux, iOS, Android and the web.

Everything in Logseq is a block in an outline. You write in a daily journal by default, then link ideas with [[page]] references or #tags, and backlinks show where every page is mentioned. Blocks can be embedded or referenced elsewhere, so one idea can appear in many contexts. Built-in features include tasks with TODO and NOW states and scheduled dates, queries that pull blocks matching conditions, a graph view, whiteboards for spatial thinking, flashcards with spaced repetition and PDF annotation that links highlights back into notes. The original version stores pages as Markdown or Org-mode files in a folder you choose, so other tools can read them.

Logseq's strengths are its open-source license, local-first storage, powerful block references and queries, built-in journals, flashcards and PDF annotation, and a path to AI through MCP and plugins. Its weaknesses are a long transition to the DB version, beta-quality features, a slower release pace than commercial apps and a learning curve for queries. Obsidian has a larger plugin library and file-based notes, but is not open source. Roam Research pioneered the block outliner as a paid service. Tana and Capacities add structured objects and built-in AI. Notion suits team wikis. Choose Logseq if you want a free, open-source outliner that keeps notes on your own device.

Obsidian is a desktop and mobile note-taking app made by Dynalist Inc., a small independent company founded by Shida Li and Erica Xu, and first released in 2020. It runs on Windows, macOS, Linux, iOS and Android. Notes live in a vault, which is a folder of plain Markdown files on your device, so they open in any text editor and outlast the app. Obsidian takes no venture capital and calls itself 100 percent user-supported. In February 2025 it made the commercial license optional, and the company says people at more than 10,000 organizations, including Amazon and Google, use it for work. Version 1.15 shipped in October 2026.

Writing happens in a Markdown editor with live preview. Typing double brackets links one note to another, and every note shows its backlinks, so ideas connect without a fixed folder hierarchy. The graph view draws those links as a network. Canvas gives an infinite board for arranging notes, images and web pages, and Bases, a core plugin added in 2025, turns notes with properties into sortable tables, cards or maps that work like a lightweight database. Daily notes, templates and tags cover journaling and task capture. The 1.15 mobile release added voice Quick Capture with live transcription on iOS 26, and PDF export on mobile.

Obsidian's flexibility is also its main drawback. A new vault is a blank editor, and building a useful system takes time and plugin choices. Real-time collaboration is limited compared with Notion, Microsoft Loop or Google Docs, and community plugins vary in quality and security. Notion suits teams that want shared databases and built-in AI. Logseq, which is open source, offers an outliner model with similar local files. Anytype offers local-first, encrypted notes with object-based structure. Pick Obsidian if you want notes that remain usable files in 20 years and are willing to add AI yourself; pick Notion for team wikis.