# JSON JSON support is available natively in Zed. - Tree Sitter: [tree-sitter/tree-sitter-json](https://github.com/tree-sitter/tree-sitter-json) - Language Server: [zed-industries/json-language-server](https://github.com/zed-industries/json-language-server) ## JSONC Zed also supports a super-set of JSON called JSONC, which allows single line comments (`//`) in JSON files. While editing these files you can use `cmd-/` (macOS) or `ctrl-/` (Linux) to toggle comments on the current line or selection. ## JSONC Prettier Formatting If you use files with the `*.jsonc` extension when using `Format Document` or have `format_on_save` enabled, Zed invokes Prettier as the formatter. Prettier has an [outstanding issue](https://github.com/prettier/prettier/issues/15956) where it will add trailing commas to files with a `jsonc` extension. JSONC files which have a `.json` extension are unaffected. To workaround this behavior you can add the following to your `.prettierrc` ```json { "overrides": [ { "files": ["*.jsonc"], "options": { "parser": "json", "trailingComma": "none" } } ] } ```