Why does commented JSON fail?

The tool uses native JSON.parse(); under RFC 8259, comments are not valid JSON syntax.

Why are single quotes or trailing commas rejected?

They are common in JavaScript or JSON5 but not in standard JSON—use strict JSON for APIs and configs.

Object semantics usually stay the same, but output order changes for reviews or signatures; arrays are not reordered.

Mode

Indentation

Sort object keys

{
  "name": "devtool",
  "enabled": true,
  "items": [
    3,
    2,
    1
  ]
}

Compare two text blocks line by line and highlight edits

Online tree structure generator from Markdown lists

JWT decode online—parse headers, payloads, and verify signatures

Team API management tool

SVG icons for front-end technology stack

Semver version range query