md0 VS
SANITY
FILES VS CLOUD
Sanity is an API-first headless CMS with a powerful developer experience and a custom query language called GROQ. md0 is a Git-native editing layer that sits on top of the markdown files you already own. Both tools work with modern JavaScript frameworks. The core difference is where your content lives and how your site accesses it. This page compares them honestly so you can choose the right approach for your project.
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What Sanity Is
API-First Platform with Strong Developer Experience
Sanity is a headless CMS platform with a reputation for strong developer experience. Content lives in Sanity's hosted content lake, a document-based storage system that Sanity operates in its own cloud infrastructure. Developers interact with this content using Sanity's client SDK and GROQ, a custom query language that Sanity developed. The platform has built a large developer community and a rich ecosystem of community-built input components and plugins. Sanity Studio, the editor interface, is a React application that you configure in code and deploy either on Sanity's hosting or on your own server.
Sanity Studio: Highly Customizable, React-Based
Sanity Studio is where your editors work. Unlike most CMS editors, Studio is a React application that you configure using JavaScript or TypeScript schema definitions. Each document type in your content model is defined as a schema file with field types, validation rules, ordering, and custom input components. This configuration approach gives developers fine-grained control over the editor experience. You can build custom field types, custom document list views, and complex conditional logic into the editor. The trade-off is that setting up and maintaining Studio requires React knowledge and ongoing code ownership.
GROQ: Sanity's Custom Query Language
GROQ (Graph-Relational Object Queries) is Sanity's bespoke query language for fetching content from their content lake. It is expressive and capable of filtering, projecting, joining, and ordering content in ways that SQL-style queries handle naturally. GROQ is genuinely useful if you are working with complex, interconnected content types. However, it is a proprietary language specific to Sanity. Learning GROQ is learning a skill that applies only within the Sanity ecosystem. If you leave Sanity, that knowledge does not transfer. By contrast, querying markdown files in a Next.js app uses standard JavaScript file system APIs and tools like gray-matterthat work anywhere.
Sanity's Free Tier and Pricing
Sanity offers a free tier that includes 2 projects, 500,000 API requests per month, 5 non-admin users, and 20GB of assets. The free tier is generous for small projects. Paid plans start at $15 per project per month for the Growth plan, which includes higher API request limits, more users, and additional asset storage. Teams with large content sets or high API traffic may encounter plan limits and move to custom pricing. md0 is free for public GitHub repositories with no API request counting, because content is read from your repository, not from a hosted API.
Side by Side
Feature Comparison
| Feature | md0 CMS | Sanity |
|---|---|---|
| Content storage | GitHub repo files | Sanity's cloud |
| Query language | None needed | GROQ (custom) |
| Editor customization | Fixed layout | Full React customization |
| Free tier limit | Public repos (unlimited) | 500K API req/month |
| API dependency | None | Required |
| Setup complexity | 2 minutes | 1 to 2 hours |
| Git integration | Native | Via webhook |
| Markdown files | Yes, native | Via custom serializer |
Where md0 Wins
Where md0 Has the Advantage
1. No API key rotation or vendor dependency
Every Sanity project requires a project ID, dataset name, and API token. These credentials live in your environment variables and must be rotated periodically. If a key leaks or expires, builds fail. If Sanity's API has an outage, your builds fail. md0 stores no API credentials related to content delivery. Your site reads markdown files from GitHub, which is infrastructure you would depend on regardless. There is no additional point of failure introduced by md0.
2. Existing markdown repos work immediately
If your site already has content as markdown files in a GitHub repository, md0 reads those files immediately after you connect the repo. No migration, no format conversion, no schema mapping. Sanity uses Portable Text as its internal content format. If you want to move existing markdown content into Sanity, you need to convert it to Portable Text, either by writing a migration script or using a third-party tool. For large content sets, this is a significant one-time investment.
3. No new query language to learn
GROQ is a capable query language, but it is entirely specific to Sanity. Developers joining a project built on Sanity need to learn GROQ before they can work productively with content fetching. md0 does not introduce any new query language. Your site fetches content the same way it always did: reading files from the filesystem or from a GitHub API call. Existing team knowledge applies directly.
4. Git is your version history
Every md0 edit becomes a Git commit on your repository. You can see who changed what, when, and you can diff any two versions of a file. Rolling back a change is a git revert. Content changes can be reviewed in pull requests alongside code changes. Sanity maintains its own version history within the platform, but that history is separate from your codebase's history and not accessible via standard Git tooling.
5. Setup that fits a two-minute demo
Getting a Sanity project running requires installing the Sanity CLI, running sanity init, defining your schemas, deploying Sanity Studio, and wiring up your frontend to use the Sanity client. A realistic setup for a new project takes one to two hours. md0 requires connecting your GitHub repository via OAuth. That is the entire setup. Editors can start working in under two minutes from a blank slate.
Honest Assessment
Where Sanity Has a Genuine Edge
1. Enterprise content modeling
Sanity's schema system supports complex document structures with nested objects, arrays of typed blocks, references between documents, and conditional fields. If your content model requires deeply nested structured data with cross-document relationships, Sanity's typed content layer handles this more formally than a collection of flat markdown files with frontmatter. For enterprise publishing workflows with interconnected content types, Sanity's architecture is genuinely more appropriate.
2. Fully customizable editor UI
Sanity Studio is a React application that you can customize completely. Custom input components let you build specialized editors for color pickers, geographic coordinates, product variants, or any other domain-specific field type. If your content team's workflow requires a highly tailored editorial interface beyond what a standard form-based editor provides, Sanity gives developers the tools to build it. md0's editor interface is fixed and is optimized for standard markdown content editing workflows.
3. Real-time collaboration
Sanity supports real-time collaborative editing where multiple editors can work on the same document simultaneously, with presence indicators showing who is editing what. For large content teams working concurrently on overlapping content, this live collaboration model reduces conflicts. md0 uses a Git-based model where changes are committed sequentially. Concurrent editing by multiple people on the same file is handled the same way Git handles any concurrent file edits.
Also See
Also comparing Contentful? md0 CMS vs Contentful | Compare all CMS alternatives
JUST FILES. JUST GIT.
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