Open Source Nuclino Alternatives

Outline is a collaborative knowledge base for a team, written in React and Node.js, and this repository is the source that runs the hosted product together with its supporting services. Anyone who simply wants to use it does not need the code at all, since a hosted version is offered by the maintainers.

The repository exists for two audiences: people running their own copy and people contributing changes. Production hosting is documented separately, and container images are published for both.

Running your own instance means dealing with a handful of moving parts.

• Logging: category prefixed console output in development and JSON logs in production, ready for a log ingestion pipeline.
• Debug switches: environment variables that widen output for HTTP, for the database, or for every category at once.
• Migrations: Sequelize commands to create, apply and roll back schema changes, including against the test database.
• Tests: Vitest files placed next to the code they cover, with API endpoints and anything authentication related tested thoroughly.

Contributors are asked to open or comment on an issue before writing code, so an approach is agreed first. The maintainers state plainly that AI generated pull requests are unwelcome, having received a high volume of mass produced ones that are almost never mergeable. Translation, performance work and documentation are named as good places to start instead. The project is licensed under BSL 1.1.

Docmost is open source software for collaborative wikis and documentation, built for teams that would rather keep internal knowledge on infrastructure they control than in a hosted notes product.

Content is organized into spaces, with groups and permissions management deciding who reads and writes where. Pages keep their history, comments sit next to the text, and several people can edit the same page at the same time.

The editor is where most of the differences show up.

• Diagrams: Draw.io, Excalidraw and Mermaid diagrams are created inside a page.
• Embeds: content from Airtable, Loom, Miro and other services is embedded directly.
• Attachments: files can be attached to any page.
• Search: pages are searchable across the whole workspace.
• Translations: the interface is available in more than ten languages.

The codebase splits a server and a client application, with enterprise directories held apart from the core. Docmost core is licensed AGPL 3.0, while the files under those enterprise directories fall under a separate enterprise license, a distinction that matters if you plan to modify and redistribute.

Self-hosting and development instructions live in the documentation, and a hosted cloud version exists for teams that would rather not deploy anything themselves.

XWiki Platform offers runtime services for applications built on top of it, making it a generic wiki platform in the literal sense. The distinction matters: rather than a place to write pages, it is a substrate other tools are written against, which is why a wiki, a knowledge base, and a small internal application can all be the same deployment.

The platform is a large Java build released in step with XWiki Commons and XWiki Rendering, three projects sharing a version number and the same software forge. Its core splits into modules that each cover a single service, so a deployment carries only what it uses.

Those modules are where the platform's capabilities live.

• Editing: a CKEditor-based WYSIWYG surface alongside real-time collaborative editing built on Netflux and Yjs.
• Structured content: App Within Minutes, classes, sheets, and LiveData tables turn pages into structured records.
• Collaboration: notifications, mentions, annotations, ratings, and likes attach to the content people work on.
• Extension management: an extension repository and a flavor system install and update components at runtime.
• Integration: a REST API, WebSocket support, office document import, and feed handling connect the wiki to a wider stack.
• Administration: permissions, cryptography, CSRF protection, a scheduler, and statistics cover the operational side.

Distributions are published as a WAR for an existing servlet container, as a standalone Jetty and HSQLDB bundle for a quick start, and as a Debian package. The code is LGPL-2.1, continuous integration builds every commit, and issues are tracked in the project's own JIRA rather than on GitHub.

Orgnise is one place for a team's knowledge and its projects: use cases, wikis, technical documentation, policies, guidelines and announcements on one side, work moving through a board on the other. It removes the split where the handbook sits in a wiki, delivery sits in a tracker, and nothing connects the two.

A team invites people into one shared space, then groups work into workspaces by project or function such as design, marketing or engineering. Pages are drafted in a Notion-style editor and belong to a collection rather than to a separate wiki. It is a Next.js and TypeScript application that keeps content in MongoDB, signs people in through NextAuth and deploys to Vercel.

Writing and delivery share the same pages.

• Notion-style editor: docs are drafted with headings, lists and embeds on a single page.
• Slash commands: blocks are inserted straight from the keyboard while writing.
• Collections: pages are grouped by project or function instead of scattered across chats and drives.
• Board view: a collection becomes columns, and a page moves from idea to done without being copied elsewhere.
• Team spaces: everyone invited sees the institutional knowledge and the progress against it.

Teams run it as an engineering source of truth, a customer support knowledge base or a project tracker, and a workspace is free to start with no credit card. The repository holds the whole application, so a developer who has shipped a Next.js project will recognize every dependency in it. Issues and pull requests are welcome for bugs and features.