Extensions · CodeMorph

Install, update and manage extensions from Open VSX, recommended extensions for a migration, and what isn't available.

CodeMorph runs the standard Code - OSS extension host, so extensions work the way you're used to. They install from Open VSX, the open registry for Code - OSS based editors, instead of Microsoft's Visual Studio Marketplace.

Installing an extension

Open the Extensions view with Ctrl Shift X.
Search by name or ID, for example dbaeumer.vscode-eslint.
Click Install.

No account is needed.

Installing from a VSIX file

If you have an extension packaged as a .vsix file:

Open the Command Palette with Ctrl Shift P.
Run Extensions: Install from VSIX…
Choose the file.

Updating and disabling

Installed extensions update from Open VSX automatically. To turn that off, set:

settings.json

{
  "extensions.autoUpdate": false
}

Right-click any installed extension to Disable it globally or for the current workspace, or to Uninstall it.

Recommended for a migration

Extension	ID	Why
ESLint	`dbaeumer.vscode-eslint`	Lints JavaScript and TypeScript; pair with typescript-eslint after converting
Prettier	`esbenp.prettier-vscode`	Keeps converted files formatted, so diffs stay about types
Error Lens	`usernamehw.errorlens`	Shows diagnostics inline, handy for files in review
Pretty TypeScript Errors	`yoavbls.pretty-ts-errors`	Makes long compiler errors readable
Vitest	`vitest.explorer`	Run and debug Vitest tests in the editor
Jest	`Orta.vscode-jest`	Test results in the editor for Jest projects

Each extension's author decides where it's published; these were on Open VSX at the time of writing.

What isn't available

Microsoft-only extensions, such as the Remote Development pack and Live Share, are licensed only for Microsoft products and aren't on Open VSX.
GitHub Copilot is not included. Morph is the built-in agent.
Settings Sync depends on Microsoft's service. To move settings from VS Code, copy settings.json and keybindings.json from %APPDATA%\Code\User to %APPDATA%\CodeMorph\User.

Where extensions live

Extensions install to %USERPROFILE%\.codemorph\extensions, separate from VS Code's folder, so the two editors never share or overwrite each other's extensions.

Extensions and security

Extensions run with the same permissions as in any Code - OSS editor and can read files in your workspace. Install from authors you trust, and keep folders you haven't reviewed in Restricted Mode, where many extensions are limited.