Professional JSON Schema tooling that brings real-time linting, metaschema validation, and automatic formatting directly into your editor.

Install in Visual Studio Code

After installing the Sourcemeta Studio extension, issues are not displayed automatically when you open a JSON or YAML file. To view them, open the file and click the Sourcemeta Studio icon in the editor title bar to manually open the Sourcemeta Studio panel for the active file.

Sourcemeta Studio is published and maintained by the official Sourcemeta organization, the team behind open-source JSON Schema tooling used in production by developers and companies worldwide.

At the time of writing, the Visual Studio Code Marketplace Verified Publisher badge has not yet been applied to this extension. Publisher verification is a Microsoft-managed, administrative process that is independent of an extension’s code quality, security posture, or maintenance status, and can take time even for established open-source organizations.

This extension is actively maintained by the Sourcemeta team, and all releases are built from the same public repositories that power Sourcemeta’s other open-source projects.

• Real-time Linting: Detect anti-patterns, validate references, and ensure best practices
• Automatic Formatting: Format schemas with consistent indentation and keyword ordering
• Metaschema Validation: Verify schemas are valid according to their declared metaschema
• Precise Error Navigation: Click on errors to jump directly to the problematic code
• Schema Health: Visual health indicators for your schemas
• Inline Diagnostics: See errors and warnings directly in the editor with Visual Studio Code's diagnostic system
• YAML Support: Full support for JSON Schema written in YAML
• Configuration Support: Full support for jsonschema.json manifests

• Issues: GitHub Issues
• Discussions: GitHub Discussions
• Email: [email protected]