Give editors flexibility without breaking your design system
Give your customers the flexibility they expect from modern SaaS platforms without sacrificing your design system. ApostropheCMS lets developers define the components, styles, and guardrails so that editors can customize content and presentation within a controlled experience.

Combine your design system with a flexible editing experience
- Open Source
- Open Source
Layout
Create flexible page structures without letting editors create inconsistent layouts.
- Open Source
Widgets
Give editors reusable building blocks instead of a blank canvas.
- Pro + Assembly Tier
Permissions
Control who can access and modify different parts of the design.
Avoid building a CMS from scratch
Most companies eventually need the same capabilities: customizable pages, reusable components, customer-specific branding, and an editing experience that feels native to their product. Building those systems internally requires more than storing content. It means creating and maintaining things well outside your wheelhouse:
Build it yourself | ApostropheCMS |
|---|---|
Your own component system | Configurable widgets and components |
Your own editing interface | In-context visual editing experience |
Your own governance model | Built-in permissions and content management foundation |
Custom solutions for every customer request | Controlled flexibility through configurable options |
ApostropheCMS gives your engineering team a foundation so they can focus on the parts of your product that differentiate you.
Alt Studios reduced development time by 50% with a reusable component library
When we can rely on the reusability of the component libraries, we have time to actually improve our craft and improve the quality of the work that we do. That just speaks to the power of ApostropheCMS.
Head of Technology and Development, Alt Studios
Let customers customize within your product's boundaries
ApostropheCMS's global and widget styles system is built on a simple principle: developers configure the design system, and editors make meaningful decisions within it. Color palettes, typography choices, spacing options, and component variants become a purposeful toolkit rather than an overwhelming list of possibilities.
This is not just a drag-and-drop page builder; it's a structured customization layer built on top of your project's CSS. Editors get the flexibility they need while every available option remains aligned with your product's design system.
Generic page builder | ApostropheCMS |
|---|---|
Editors can change anything | Developers define available options |
Design consistency depends on training | Design rules are built into the system |
Custom components require workarounds | Components are native building blocks |
Brand standards are documented | Brand standards are enforced |
- White label CMS
Transform the CMS UI to represent your product or brand
White label the whole editing and admin UI to feel like a native part of the experience. Customize logos, colors, and interface identity to match your brand.
Design tools built for how teams actually work
Developers define the available components, styles, and layouts. Editors can create pages using those approved options, but they can't accidentally introduce unsupported designs.
Developers expose specific CSS properties, such as colors, typography, and spacing, as configurable options in the admin interface. Editors adjust those options without writing code.
Developers control exactly which properties are available and which values are valid, ensuring customization stays aligned with the product's design system. Read the global styles documentation.
Widget styles let developers expose controlled variations — such as colors, spacing, or alignment — while keeping those choices inside the boundaries of the design system. Read the widget styles documentation
Yes. Breakpoint Preview lets editors preview pages at configurable breakpoints directly within the editing interface without manually resizing a browser window.
Developers configure which breakpoints are available. Read the breakpoint preview documentation.
Yes. The layout widget creates responsive grid-based layouts with configurable columns. Developers define which layout options are available, and editors assemble pages using those approved configurations. Responsive behavior at each breakpoint is controlled by the project's stylesheets.
Open source — available in all plans.
Every image supports focal point settings that preserve the most important area of an image regardless of crop or screen size. Editors set focal points directly in the media manager without technical knowledge, helping preserve design intent everywhere images appear.
The ApostropheCMS editing experience follows accessibility standards: keyboard navigation, screen reader support, and WCAG-compliant interface patterns are part of the admin UI by design. The CMS provides the right building blocks (alt text fields on images, semantic markup in core widgets, and clean HTML output) without fighting the framework. Live site accessibility remains the development team's responsibility.