---
syntax: markdown
tags: [tldr, windows]
source: https://github.com/tldr-pages/tldr.git
---
# Test-Json

> Test whether a string is a valid JSON document.
> Note: This command can only be used through PowerShell.
> More information: <https://learn.microsoft.com/powershell/module/microsoft.powershell.utility/test-json>.

- Test if a string from `stdin` is in JSON format:

`'{{string}}' | Test-Json`

- Test if a string JSON format:

`Test-Json -Json '{{json_to_test}}'`

- Test if a string from `stdin` matches a specific schema file:

`'{{string}}' | Test-Json -SchemaFile {{path	o\schema_file.json}}`
