Kalmia

Self-hosted documentation CMS in Go

About Kalmia

Kalmia is a free, open-source documentation CMS written in Go that renders documentation sites with RsPress, designed for self-hosting technical docs. It is released under the AGPL-3 licence and developed openly on GitHub by DifuseHQ.

Kalmia website preview

Live preview of kalmia.difuse.io via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Kalmia: strengths & things to check

Strengths

Completely free to use — this directory lists no paid plan for it.
Covers documentation, cms, self hosted, open source — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

Free tools can change their model or shut down — avoid locking critical work into it without an export path.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 2328 tools in the Productivity & Notes category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

Kalmia pricing

Pricing model	Free — listed in this directory as a free tool, with no paid plan required to use it.
Free access	Yes — fully free
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	kalmia.difuse.io

Kalmia key facts

Category: Productivity & Notes
Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas: documentation, cms, self hosted, open source
Official site: kalmia.difuse.io

Kalmia FAQ

How much does Kalmia cost?

Free — listed in this directory as a free tool, with no paid plan required to use it. Current plans and prices are listed on the official site (kalmia.difuse.io).

What is Kalmia used for?

Self-hosted documentation CMS in Go Its focus areas in the Productivity & Notes category: documentation, cms, self hosted, open source.

Where can I try Kalmia?

On its official site, kalmia.difuse.io — the Visit Official Site button above goes straight there.

Kalmia vs alternatives

	Kalmia	An Otter Wiki	Docmost	Typemill
Pricing	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas	documentation, cms, self hosted, open source	wiki, markdown, open source, self hosted, documentation	wiki, documentation, knowledge base, open source, self hosted	cms, documentation, markdown, self hosted
Official site	kalmia.difuse.io	otterwiki.com	docmost.com	typemill.net
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Productivity & Notes category

Notes, tasks, and project tools that keep you organized and focused. The Productivity & Notes category on Tools Hub currently lists 2328 tools. Alongside Kalmia, it includes MightyBuilder, BUS Core, Onelios, Craftplan.

FreeProductivity & Notesdocumentationcmsself-hostedopen-source

Alternatives to Kalmia

Tools in the same Productivity & Notes category that share focus areas with Kalmia — worth comparing before you commit:

Productivity & Notes

An Otter Wiki

A minimalistic wiki powered by Python, Markdown and Git

Freewikimarkdownopen-sourceself-hosted

Productivity & Notes

Docmost

Open-source collaborative wiki and documentation software for teams

Freemiumwikidocumentationknowledge-baseopen-source

Productivity & Notes

Typemill

Open-source flat-file CMS for product documentation, manuals, and guides.

Freemiumcmsdocumentationmarkdownself-hosted

Productivity & Notes

Admidio

Free membership management for organizations, clubs, and associations

Freemembershipself-hostedopen-sourceclubs

Productivity & Notes

AdventureLog

Travel log, trip planner, and world map in one app

Freetraveltrip-plannerself-hostedopen-source

Productivity & Notes

Alian Hub

Open-source project management - free forever, on your server, run by AI agents

Freeproject-managementopen-sourceself-hostedtime-tracking

More in Productivity & Notes

Comparing tools in the Productivity & Notes category? These related listings are worth a look: MightyBuilder — AI website builder that starts free; BUS Core — Local-first operations record for small shops; Onelios — Free AI website builder with hosting for service businesses.