Jsson Docs

Installation

How to install the JSSON VS Code extension.

VS Code Marketplace

Open VS Code

Launch Visual Studio Code on your machine.

Open Extensions

Press Ctrl+Shift+X (Windows/Linux) or Cmd+Shift+X (macOS).

Search for JSSON

Type "JSSON" in the search bar.

Install

Click Install on the "JSSON Language Support" extension.

Command Line

code --install-extension jsson.jsson-vscode

Manual Installation (VSIX)

If you have the .vsix file:

code --install-extension jsson-vscode-0.0.6.vsix

Or in VS Code:

  1. Open Command Palette (Ctrl+Shift+P)
  2. Type "Install from VSIX"
  3. Select the .vsix file

LSP Server Setup

The extension includes the LSP server. No additional setup required!

If you want to use a custom LSP binary:

  1. Build the LSP server:
cd jsson
go build -o bin/jsson-lsp ./cmd/lsp
  1. Configure the extension:
{
  "jsson.lsp.path": "/path/to/jsson-lsp"
}

Verify Installation

  1. Create a new file: test.jsson
  2. Type the following:
config {
  name = "Hello JSSON"
  enabled = yes
  id = @uuid
}

You should see:

  • ✅ Syntax highlighting
  • ✅ No red error squiggles
  • ✅ yes highlighted as boolean
  • ✅ @uuid highlighted as validator

Troubleshooting

Extension not working?

  1. Reload VS Code: Ctrl+Shift+P → "Reload Window"
  2. Check output: View → Output → Select "JSSON"
  3. Verify file extension: Must be .jsson

LSP not starting?

  1. Check the LSP path in settings
  2. Ensure the binary is executable
  3. Check the Output panel for errors

Supported VS Code Versions

  • VS Code 1.75.0 or later
  • VS Code Insiders
  • VSCodium

Features

Complete list of JSSON VS Code extension features.

On this page

VS Code MarketplaceOpen VS CodeOpen ExtensionsSearch for JSSONInstallCommand LineManual Installation (VSIX)LSP Server SetupVerify InstallationTroubleshootingExtension not working?LSP not starting?Supported VS Code Versions