#2 in Knowledge Base & Self-serviceUpdated 2026-08

Fumadocs

by Fumadocs · React.js documentation framework with a headless core and composable packages

63.7 — BenchRank score out of 100

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Overview

Fumadocs is a React.js documentation framework built around Markdown and MDX. It is split into separate packages — fumadocs-mdx for content, fumadocs-core as a headless library and fumadocs-ui for the interface — so it can be adopted whole or used as a library. It ships adapters for Next.js, Tanstack Start, React Router and Waku, and reads content from MDX files, Content Collections or a CMS.

Best for: Developers building documentation sites for React apps who want to customise the UI themselves.
Pricing: No prices are shown; the pages state Fumadocs is fully open source and available on GitHub, funded by sponsors.
Runs on: CLI

Strengths and trade-offs

Strengths

Official support for Next.js, Tanstack Start, React Router and Waku
Headless mode to plug in your own UI, or use the bundled themes
Markdown and MDX with Shiki highlighting, callouts and code tabs
Open source on GitHub; CLI scaffolds a project in one command

Trade-offs

React only; no support for non-React stacks is stated
Configuration and prior knowledge needed — hence the separate Fumapress
Community-run: maintenance depends on contributors and sponsors

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 80 out of 100
API quality: 30 out of 100
Documentation: 90 out of 100
Agent friendliness: 68 out of 100
Changelog: 100 out of 100
Marketing site structure: 55 out of 100
Operational trust: 0 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 60 out of 100
Maintenance: 100 out of 100

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