SleekCMS
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What is SleekCMS?
SleekCMS is a headless CMS with an integrated static site builder, designed for developers, web agencies, and small businesses who need to build and manage content without external tooling. It combines structured content modeling with zero-infrastructure publishing, allowing teams to model content as pages, entries, and blocks, then deliver it through a clean REST API or as a fully generated static website.
Key features include typed content modeling with pages (routable content), entries (non-routable structured data like authors and settings), and blocks (composable components like hero sections and feature grids). The platform offers a REST API that returns the entire content graph in one fetch, a TypeScript-native SDK (@sleekcms/client) for SSG and SSR, and an integrated EJS template editor for building static sites directly in the browser without Git, servers, or build pipelines.
SleekCMS also includes cms-sync for local development with VS Code or Cursor, AI-assisted site building, built-in forms with lead management, image optimization via URL parameters, multi-environment publishing (draft, staging, production), and AI SEO that audits and rewrites meta tags across the entire site. It's ideal for marketing websites, blogs, multi-page sites with shared content, design systems, and headless content for apps.
SleekCMS pricing
Pricing model: Freemium
Free plan: $0 forever - includes 2 sites, unlimited collaborators, all content field types, site builder + headless API, AI writing assistant, form submissions + lead management, download site as ZIP, everyone is Admin, community support. Plus plan: $20/month (or $17/month billed $200/yr) - includes basic roles (Admin/Editor), no SleekCMS badge, deploy to Netlify & Vercel, version revert + preview, email support. Business plan: $100/month (or $83/month billed $1,000/yr) - includes advanced roles and permissions, form submission CRM webhooks, priority support, partner program eligibility. Enterprise: Custom contracts with volume pricing, SSO/SAML, dedicated SLAs, unlimited sites, white-labeling. Additional sites: +$10/mo on Plus, +$50/mo on Business. Custom domains free on all plans.
SleekCMS pros
- Headless CMS with integrated static site builder in one platform
- Structured content modeling with pages, entries, and blocks
- REST API returns entire content graph in single fetch
- TypeScript-native SDK with sync and async client modes
- Integrated EJS template editor in the browser
- Zero-config builds - no Git, CI/CD, or servers required
- cms-sync enables local development with VS Code or Cursor
- AI-assisted site building from plain English descriptions
- Built-in forms with automatic lead management UI
- Image optimization via URL parameters (resize, crop, WebP, blur)
- Multi-environment publishing with draft, staging, production
- AI SEO audits entire site and rewrites meta tags automatically
- Custom domains free on all plans with CDN hosting
- Unlimited collaborators on every plan
- Free plan includes full product - not a stripped trial
- React hooks (usePage, useEntry) with loading states built in
- Version revert available on Plus and above plans
- Deploy to SleekCMS hosting, Netlify, Vercel, or download as ZIP
- Template library included with free templates for small businesses
- Partner network for SEO, brand messaging, and content marketing support
SleekCMS cons
- SleekCMS badge shown on Free plan sites
- Only 2 sites included on Free plan
- Basic roles (Admin/Editor) only on Plus plan
- Advanced role configuration requires Business plan
- Additional sites cost $10/mo on Plus, $50/mo on Business
- Email support only on Plus plan (not Free)
- Priority support requires Business plan
- CRM webhook integration only on Business plan
- No SSO/SAML on standard plans (Enterprise only)
- White-labeling available only for Enterprise
Frequently asked questions about SleekCMS
What is SleekCMS and how does it work?
SleekCMS is a hosted headless CMS with an integrated static site builder. You model structured content using pages, entries, and blocks with typed fields, create and manage content through a visual editor with live preview, and deliver it through a content API or as a fully generated static website. No servers, databases, Git repositories, or build pipelines are required.
Who is SleekCMS for?
SleekCMS serves three main audiences: Developers who need clean REST APIs, TypeScript-friendly SDKs, and cms-sync for local AI-assisted development; Web Agencies that manage multiple client sites from one dashboard with reusable templates and client-safe editing; and Small Businesses that want to launch professional websites without coding using free templates and a no-code builder.
What content models does SleekCMS use?
SleekCMS uses three primitives: Page models define routable content with URLs (static pages like /about and collections like /blog/[slug]); Entry models define non-routable structured data without URLs (authors, navigation, site settings); Block models define reusable composable components (hero sections, feature grids, testimonials) embedded within pages and entries.
How does the REST API work?
The REST API provides a single authenticated endpoint that returns your entire content graph as structured JSON in one fetch. The response includes pages (all routable content with _path and _slug), entries (keyed by handle), images (named site-level images), options (option sets as arrays), config (site title and origin URL), and _tag (version identifier for cache-busting).
What is cms-sync and how do I use it?
cms-sync is a CLI tool that brings SleekCMS into your local dev environment. Run npx @sleekcms/sync --token YOUR_AUTH_TOKEN to pull your site into a folder, then open it in VS Code or Cursor. Every file save syncs back to SleekCMS, triggering automatic rebuild and redeploy in real time. It writes AGENT.md, CLAUDE.md, and .vscode/copilot-instructions.md for AI-agent support.
How does the integrated site builder work?
The integrated site builder compiles EJS templates plus content into static HTML and deploys to CDN automatically on every save. You bind templates to content models in the browser using the EJS template editor, preview changes before publishing, and deploy to SleekCMS hosting, Netlify, Vercel, or download as ZIP. No Git, servers, or build pipeline required.
What is the AI SEO feature?
AI SEO audits every page on your site, benchmarks competitors you're chasing, and automatically rewrites titles, meta descriptions, structured data, Open Graph tags, and sitemaps across the entire site in one pass. It strengthens H1s and expands thin content on key landing pages. Re-run anytime search algorithms shift to keep SEO current.
How do forms work in SleekCMS?
Add data-sleekcms attribute to any HTML form and SleekCMS automatically captures every submission. All submissions appear in the dashboard grouped by form name with lead management UI. Configure email notifications to any inbox, and fire CRM webhooks to route leads into HubSpot, Salesforce, Mailchimp, or any HTTP endpoint. No backend code or action URL required.
What are the environments and publishing workflows?
SleekCMS supports Draft, Staging, and Production environments. Editors work in Draft independently, publish to Staging for review, then to Production when approved. Environment aliases point to content snapshots, with version revert on Plus and above to roll back in one click. Webhooks fire any HTTP endpoint on publish. The live site reads from an environment alias until you publish.
Is the Free plan really the full product?
Yes, the Free plan includes the full platform - all content field types, site builder, headless REST API, unlimited collaborators, form submissions with lead management, AI writing assistant, and access to the template library. It is not a stripped trial. The only limitations are the SleekCMS badge on sites and only 2 sites included (additional sites cost $10/mo on Plus plan).