Kiln

Kiln is a click-to-edit CMS for static websites, designed for owners who want clients or colleagues to maintain pages without touching code. It is a strong fit for GitHub-based publishing teams that need controlled delegation, while its self-hosting requirements and static-site scope make it a poor match for conventional hosted-CMS projects.

Overview

Editors work directly on the rendered site, changing text, images, documents, blocks, galleries, events, and calendar content. Every publication is recorded as a Git commit in a repository the customer owns, aligning Kiln with hosts that redeploy after a push. Drafts, scheduled releases, named versions, history, and restoration provide a useful editorial trail rather than a single overwrite button.

Content remains plain HTML in the customer’s GitHub repository on every plan, and it can be retained after cancellation. That limits content lock-in, but the site still depends on a static build and GitHub-centered deployment process. Uploaded documents are capped at 15 MB per file, an important constraint for media-heavy sites.

Key features

Editing, permissions, and review

Owners authenticate with GitHub, while invited editors and members can sign in with Google without GitHub accounts. Permissions can be restricted to pages or sections, which is practical when different clients own different parts of a site. Comment-only reviewer seats keep feedback separate from editing, and suggest mode lets owners approve or decline proposed changes field by field.

Publishing and integrations

Publishes become Git commits and can feed Cloudflare Pages, Netlify, Vercel, or GitHub Pages when those services redeploy on push. Kiln also offers a REST API and kiln-mcp, allowing scripts and agents to edit scoped, sanitized fields. Optional AI assistance uses an API key supplied by the customer, so it is an augmentation rather than a separate hosted intelligence service.

The GitHub App can be limited to repositories selected during installation, and only invited Google email addresses may sign in as editors or members. Kiln supports static HTML and documents a source mode for Astro-generated sites; Eleventy, Hugo, and Jekyll adapters are planned rather than current support.

Pricing

Self-hosted: $0.00 USD, free forever. This is open source under AGPL-3.0, but you run the worker and GitHub App and provide the site host. Community support on GitHub makes it best for technically capable owners who want maximum control and accept the operational work.

Kiln Cloud: $4.99 a month, recurring monthly, with a 7-day free trial. Kiln operates the service, making this the sensible entry point for a small static site that needs delegated editing without self-hosting.

Fully managed: $14.99 a month, recurring monthly, with a 7-day free trial and priority support. It suits organizations that value help with operation and escalation more than the lowest subscription price.

Concierge setup & tagging: $399.00 USD one-time. Optional hand-tagging, menu and editor-access configuration, and one revision round make this an implementation service rather than an ongoing hosting tier.

Platforms

Kiln is offered as a web service, API, and self-hosted deployment. Its GitHub-only provider model and Git-commit deployment method favor static sites already built around repositories and push-triggered hosts.

Who it's for

Choose Kiln when you build static sites for clients or teams and want non-technical people to update content, submit suggestions, and work within narrowly defined page permissions. It is less suitable when you need a traditional database-backed CMS, broad media files above 15 MB, or a provider other than GitHub.

Pros and cons

• Pro: On-page editing covers varied content types without exposing repository access.
• Pro: Git commits, versions, history, restoration, drafts, and scheduling create a clear recovery and approval trail.
• Pro: Plain HTML stays in the customer’s repository, reducing dependence on Kiln after departure.
• Con: The free tier shifts hosting and worker operations to you.
• Con: GitHub is the sole listed Git provider, and static-site compatibility narrows its audience.
• Con: A 15 MB per-file upload ceiling may restrict document-heavy publishing.

Alternatives

Quiqr is a free, open-source option spanning desktop, web, and self-hosted platforms when you want broader platform coverage without a paid tier. deco CMS fits teams seeking an open-source, self-hostable core with API access. Mattrbld is worth considering for Android or iOS access and a free hosted option aimed at small private projects.

Netlify is the better choice when deployment and hosting capacity matter more than Kiln’s editorial controls. Decap CMS suits a free, self-hosted web CMS with a one-site, one-seat free plan. Siteleaf is an alternative for hosted publishing with a free developer tier and paid personal plan. TinaCMS is a comparable API, web, and self-hosted option with a free tier for two users and two roles. Dhub is aimed at simpler GitHub editing, including a free plan restricted to one user and public repositories.

Browse Git-Based CMS and Content Management Systems for broader category comparisons.

Verdict

Kiln is recommended for agencies, site owners, and small teams running static sites from GitHub who need client-friendly editing plus field-level review and an auditable Git history. Its strongest reason to choose it is the combination of on-page changes and repository-owned content. Look elsewhere if you need non-Git providers, a conventional hosted CMS, or self-hosting is not acceptable.