Logseq

Logseq is an open-source, privacy-first knowledge management and outlining platform that has earned a strong following among researchers, students, writers, software engineers, and anyone who builds a long-term personal knowledge base. The platform combines block-based outlining (every line is a draggable, addressable block), bidirectional links between notes, a daily journal stream, a queryable Datalog knowledge base, and a graph view that visualises relationships between notes — all stored as plain Markdown or Org-mode files on disk so the data remains durable, portable, and editable in any text editor regardless of Logseq's future. The Logseq Web App is the official static SPA build of the project, distributed by the upstream as a Docker container so users can self-host the front-end on infrastructure they trust.

Common Use Cases

Researchers and academics build long-term knowledge bases that survive beyond any single project, with bidirectional links surfacing connections between literature notes, lecture summaries, conference recordings, and personal commentary that would otherwise stay siloed in separate documents. Software engineers maintain technical journals — daily notes capturing what they worked on, what they learned, and what to revisit — alongside structured pages for runbooks, post-mortems, and cross-team interfaces, all queryable via Datalog when later questions arise. Writers and authors plan novels, articles, and long-form pieces in Logseq's outline-friendly UI, leveraging block references to assemble final drafts from re-usable note fragments without copy-paste. PKM enthusiasts and second-brain builders use Logseq as the canonical inbox for ideas, articles, podcast notes, and book highlights, with daily-journal entries cross-linking into topic pages organically. Students manage course notes, reading lists, and assignment tracking inside Logseq, taking advantage of templates for lectures, labs, and exam-review sessions. Privacy-conscious users self-host the web app specifically to avoid logseq.com's hosted instance, preferring to load the SPA from a domain they control even though the underlying data remains in their browser-managed local folder.

Key Features

• Block-based outliner with draggable blocks, embedded references, and bi-directional links between notes
• Plain Markdown and Org-mode file storage so the knowledge base remains portable and survives any single tool
• Daily journal pages that create a continuous log indexed by date and linked into topical pages effortlessly
• Graph view rendering note relationships as an interactive force-directed visualisation
• Datalog query engine for filtering notes by tags, properties, dates, and arbitrary structural criteria
• Reusable templates for meeting notes, books, projects, lectures, and recurring workflows
• Whiteboards, flashcards (spaced repetition), TODO/scheduling, and task management built into the same UI
• Plugin marketplace with hundreds of community plugins for themes, integrations, and workflow extensions
• Privacy-first design — the web app stores notes only in a browser-controlled local folder via File System Access API
• Chromium-based browser requirement (Chrome, Edge, Brave, Opera, Arc) for File System Access API support
• Static-SPA deployment with no database, no user accounts, and no server-side persistence to manage
• Supports git-based sync, iCloud/OneDrive folder sync, and pairs naturally with the Logseq desktop and mobile apps

Why deploy Logseq on Hostinger VPS

Running the Logseq web app on a Hostinger VPS gives privacy-conscious users a private, vendor-independent way to load the Logseq SPA — one of the strictest forms of self-hosting because it ensures the JavaScript that has access to your local note files comes only from infrastructure you control. Even though the actual notes live in the browser's File System Access folder rather than on the server, hosting the front-end yourself eliminates the trust dependency on logseq.com (or any CDN) for the code that runs against your filesystem. Dedicated CPU and disk on a VPS handle the static-asset delivery effortlessly — the web app is a few megabytes of HTML/JS/CSS — so the deployment coexists comfortably with dozens of other self-hosted services on a single small VPS plan. Combined with Traefik-based HTTPS routing on a clean branded hostname, the secure-context requirement of the File System Access API is satisfied automatically, and the URL you open in Chrome from any device looks like part of your own infrastructure rather than a SaaS provider's. Because the deployment has no server-side state, backups are trivial — there's nothing to back up — and zero-downtime upgrades come down to repulling the image and restarting one container.