# mintlify vs docusaurus vs fumadocs: which docs framework should you choose?

> the three most popular docs frameworks compared. which one is fastest, most agent-friendly, and right for your project?

if you're building documentation in 2026, you have three dominant choices: mintlify, docusaurus, and fumadocs.

they're not interchangeable. they're built for different philosophies. different tradeoffs. different outcomes.

here's how they compare on what actually matters.

## hosting, setup, and agent access side by side

| | mintlify | docusaurus | fumadocs |
|---|---|---|---|
| **type** | saas / hosted | open source self-hosted | open source self-hosted |
| **setup** | connect github, done | install npm packages, configure | install npm package, configure |
| **hosting** | mintlify (free tier) | vercel, netlify, github pages | vercel, netlify, anywhere |
| **agent-friendly** | excellent | moderate | excellent |
| **speed** | fast (cdn) | fast (static) | fast (ssr via next.js) |
| **ecosystem** | growing | massive (meta-backed) | growing |
| **customization** | limited (themes) | extensive | moderate |
| **pricing** | free tier, then paid | free | free |
| **best for** | startups, teams | large projects, custom needs | next.js projects, speed |

## mintlify: the saas experience

mintlify is a platform, not just a framework. you connect your github repo. they handle hosting, search, analytics, and now ai features.

### what mintlify does well

**zero config.** connect your repo with markdown files. done. the site builds automatically. no wrangling with build pipelines or deployment.

**ai features built in.** semantic search. ai-powered question answering. "chat with your docs" out of the box. this matters because users increasingly expect search to understand intent, not just match keywords.

**agent-ready by default.** mintlify generates `llms.txt` automatically. exposes `.md` endpoints for every page. this is not an afterthought. it's built in.

**fast.** cdn-backed. global edge distribution. your docs load fast everywhere.

**beautiful default design.** mintlify sites look good without customization. typography, spacing, dark mode, mobile responsiveness. all polished.

### where mintlify falls short

**vendor lock-in.** your docs are in your repo (markdown files), but the hosting, search index, and ai features are on mintlify's infrastructure. moving away means rebuilding those.

**limited customization.** you can choose themes and colors. you can't fundamentally change the layout or add custom components. if you need something mintlify doesn't support, you're stuck.

**pricing at scale.** free tier is generous. but at high traffic or many projects, costs add up. this is the saas model.

## docusaurus: the proven workhorse

docusaurus is meta's open-source docs framework. it's been around since 2017. it powers the docs for react, redux, jest, and hundreds of other projects.

### what docusaurus does well

**mature ecosystem.** plugins for search (algolia docsearch), internationalization, versioning, code tabs, mermaid diagrams, math equations. if you need a feature, there's probably a plugin.

**deep customization.** react under the hood. you can override any component. build custom themes. add your own webpack config. if you can build it in react, you can put it in docusaurus.

**versioning.** built-in support for multiple versions of docs. essential for libraries with breaking changes. mintlify handles this too, but docusaurus's implementation is more battle-tested.

**free forever.** open source. no vendor. host anywhere. no usage limits.

**meta backing.** not a startup that might shut down. docusaurus has institutional support.

### where docusaurus falls short

**setup friction.** npm install. create `docusaurus.config.js`. configure plugins. set up deployment. it's not hard, but it's more steps than mintlify.

**agent friction.** no automatic `llms.txt`. no `.md` endpoints. the source markdown is in your repo (on github), but visitors to the site get html. agents need to go to github or parse the html. extra steps.

**build times.** complex sites with many plugins take time to build. not a problem for most, but noticeable on large docs.

## fumadocs: the speed demon

fumadocs is the newest of the three. a next.js-based docs framework built by a single developer. it's fast, minimal, and modern.

### what fumadocs does well

**next.js native.** if your project is already next.js, fumadocs fits perfectly. same build pipeline. same deployment. same vercel integration.

**blazing speed.** ssr via next.js. instant page loads. the demo sites feel faster than docusaurus and mintlify.

**agent-ready.** like mintlify, fumadocs exposes `.md` endpoints. supports `llms.txt`. built with programmatic access in mind.

**minimal complexity.** smaller codebase than docusaurus. fewer abstractions. easier to understand and customize if you know next.js.

**free and open source.** no platform fees. host on vercel's free tier. zero cost.

### where fumadocs falls short

**newer ecosystem.** fewer plugins. fewer tutorials. smaller community. if you hit an edge case, fewer people have solved it before.

**single maintainer.** built by one developer. if they stop working on it, the project might stall. (though it's open source, so anyone can fork.)

**less polished defaults.** mintlify's default design is beautiful. fumadocs is clean but minimal. you might need to customize more to match mintlify's visual quality.

## agent-friendliness: the hidden factor

this is where agent cache cares. how easy is it to extract your docs?

**mintlify:** excellent. `.md` endpoints work. `llms.txt` auto-generated. navigation api available. extraction is trivial.

**fumadocs:** excellent. `.md` endpoints work. `llms.txt` supported. next.js app router makes routes predictable. extraction is easy.

**docusaurus:** moderate. no `.md` endpoints. no auto `llms.txt`. but markdown source is on github. extraction requires going to the repo, not the site. still doable, just extra steps.

if ai agents reading your docs matters to you (and it should), mintlify and fumadocs have an advantage.

## performance comparison

| metric | mintlify | docusaurus | fumadocs |
|---|---|---|---|
| first contentful paint | ~0.8s | ~1.2s | ~0.6s |
| time to interactive | ~1.5s | ~2.0s | ~1.0s |
| js bundle size | ~45kb | ~120kb | ~15kb |
| build time (100 pages) | n/a (hosted) | ~30s | ~15s |

fumadocs wins on speed. mintlify wins on convenience (no build needed). docusaurus is reasonable but heavier.

## when to choose each

**choose mintlify if:**
- you want the fastest setup possible
- you value built-in ai features
- you don't mind hosted saas
- agent-friendliness matters
- you're a startup or small team

**choose docusaurus if:**
- you need deep customization
- you have complex versioning requirements
- you want maximum ecosystem support
- you're building docs for an established open-source project
- you don't mind self-hosting

**choose fumadocs if:**
- your project is already next.js
- you care about performance above all else
- you want agent-ready docs without saas
- you prefer minimal, modern tools
- you're comfortable with a newer ecosystem

## mintlify for zero ops, fumadocs for self-hosted next.js

for most new projects in 2026: **mintlify or fumadocs.**

both are fast, modern, and agent-ready. mintlify if you want zero-ops saas. fumadocs if you want self-hosted next.js.

docusaurus is still excellent for large, complex projects that need its ecosystem. but for a typical docs site, mintlify or fumadocs will get you there faster.

## judge the raw docs alongside the rendered site

documentation frameworks are not just about how the site looks to humans. in 2026, they're also about how accessible the content is to machines.

mintlify and fumadocs understand this. docusaurus is catching up. the future belongs to frameworks that serve both audiences out of the box.

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**related:**
- [framework extractor rankings](/blog/docs-framework-agent-readability)
- [how agent-readable docs are in 2026](/blog/state-of-docs-for-agents-2026)