Publish to Open VSX

Publish the extension to the Open VSX registry for broader editor support.

What is Open VSX?

Open VSX is a neutral extension registry:

  • Alternative to Microsoft's marketplace
  • Required for non-Microsoft editors
  • Used by Windsurf, Cursor, and others

Install CLI

Publish Command

From the extension directory:

Namespace Requirement

Your extension needs a unique namespace:

  • Set in package.json under publisher
  • Must match your Open VSX account name

Claim Namespace

  1. Create account at open-vsx.org
  2. Claim your publisher namespace
  3. Verify ownership (usually via GitHub)

Verification State

  • Unverified - Works but shows warning
  • Verified - Trusted status
  • Verification improves discoverability

Publishing Example

Post-Publishing

Extension becomes available at:

Users can now install via their editor's extension marketplace.