Sanity

What is Sanity?

Sanity is a headless CMS built around structured content and a query language (GROQ) designed specifically for pulling exactly the shape of data you need. Content is stored as portable, JSON-like documents rather than locked into a rigid page-builder format, and the editing interface (Sanity Studio) is itself an open-source React app you can customize or extend with your own fields and workflows. It appeals to developers who want a CMS that behaves like a real data layer rather than a black box.

Key features

• GROQ, a purpose-built query language that makes fetching nested or filtered content simpler than typical REST-shaped CMS APIs
• Sanity Studio ships as open-source code you deploy and customize yourself, including custom input components and validation
• Real-time collaborative editing, with multiple people able to edit the same document simultaneously
• Content stored as structured, portable JSON, making it easier to reshape schemas or migrate content later
• A generous free tier aimed at side projects and evaluation, with usage-based scaling from there

Who it's for

Best for teams with developer resources willing to invest in schema design and Studio customization in exchange for real flexibility. Less appealing if you want a CMS that works well out of the box with minimal setup, since Sanity's power comes with more upfront configuration than page-builder-style CMSs.

Pricing

Free tier for small projects, with usage-based paid plans as content volume, users, and API requests grow.