Swagger Editor v4 (Ace.js) is now deprecated and will be replaced by Swagger Editor v5, built on Monaco Editor - the same engine behind VS Code.

The new editor offers intelligent autocompletion, syntax highlighting, validation, and support for OpenAPI 2.0 / 3.0 / 3.1 and AsyncAPI 2.x.
You can try it now at 👉 https://editor-next.swagger.io/

🚨 Important

• v4 is in maintenance mode - only critical security fixes will be applied.
• New issues or feature requests for v4 will not be handled.
• The new editor is powered by Swagger ApiDOM, with a v1.0.0 release candidate coming soon.

🔗 Learn more in the official announcement: Swagger Editor: A New Era Begins