---
name: "jsonnetfmt"
section: "1"
platform: "linux"
package: "jsonnet"
version: "0.20.0+ds-3.1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/jsonnetfmt"
---

# jsonnetfmt(1)

Jsonnet data templating language interpreter

## NAME

Jsonnet - Jsonnet data templating language interpreter

## DESCRIPTION

Jsonnet reformatter v0.20.0

jsonnetfmt {\<option\>} { \<filename\> }

### Available options:

- **-h** / **--help**

  This message

- **-e** / **--exec**

  Treat filename as code

**-o** / **--output-file** \<file\> Write to the output file rather than stdout

- **-i** / **--in-place**

  Update the Jsonnet file(s) in place.

- **--test**

  Exit with failure if reformatting changed the file(s).

- **-n** / **--indent** \<n\>

  Number of spaces to indent by (default 2, 0 means no change)

- **--max-blank-lines** \<n\>

  Max vertical spacing, 0 means no change (default 2)

- **--string-style** \<d\|s\|l\>

  Enforce double, single (default) quotes or 'leave'

**--comment-style** \<h\|s\|l\> # (h), // (s)(default), or 'leave'; never changes she-bang

**--\[no-\]pretty-field-names** Use syntax sugar for fields and indexing (on by default)

- **--\[no-\]pad-arrays**

  \[ 1, 2, 3 \] instead of \[1, 2, 3\]

- **--\[no-\]pad-objects**

  { x: 1, y: 2 } instead of {x: 1, y: 2} (on by default)

- **--\[no-\]sort-imports**

  Sorting of imports (on by default)

- **--debug-desugaring**

  Unparse the desugared AST without executing it

- **--version**

  Print version

In all cases: \<filename\> can be - (stdin) Multichar options are expanded e.g. **-abc** becomes **-a** **-b** **-c**. The **--** option suppresses option processing for subsequent arguments. Note that since filenames and jsonnet programs can begin with -, it is advised to use **--** if the argument is unknown, e.g. jsonnet **--** "$FILENAME".

## SEE ALSO

The full documentation for **Jsonnet** is maintained as a Texinfo manual.  If the **info** and **Jsonnet** programs are properly installed at your site, the command

-

  **info Jsonnet**

should give you access to the complete manual.