What is a .JSON file?
JSON is a lightweight, human-readable data-interchange format.
- Did you know
- JSON was specified and popularised by Douglas Crockford in the early 2000s.
- JSON was drawn from a subset of JavaScript’s syntax, but it is now a language-independent data format.
- It is defined by two parallel specifications, ECMA-404 and IETF RFC 8259, which keep the same grammar.
- A .JSON file is plain text, so you can open and edit it in any text editor.
- On the web a .JSON file is served with the MIME type
application/json.
- What Analyser shows you
- Preview and inspect HTML, CSS, JavaScript, TypeScript, JSON, YAML, XML and Markdown source files, plus Windows scripts - PowerShell (PS1, PSM1, PSD1), reading their comment-based help synopsis, #Requires directives, function and parameter counts, CmdletBinding and Authenticode signing; and batch/command scripts (BAT, CMD), reading the echo state, labels, variables set and the external tools they invoke - all alongside the source.
- Open a .JSON file
- Drag a .JSON file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.