JSON Beautifier

Consistent indentation, every time.

Beautifying JSON re-serializes a document with consistent, predictable whitespace. Use it to tidy hand-edited configuration files, normalise output from different tools, or make a compact response readable before you commit it to a repository.

Indentation

Sort keys alphabetically

Array order is always preserved — only whitespace, and optionally key order, change.

Input JSON

Beautified JSON

Paste valid JSON to see the output.

Beautifier or formatter — what is the difference?

None, technically. “Beautify”, “format” and “pretty-print” all describe the same operation: parse the document, then serialize it again with readable whitespace. Jsonviewpro offers both routes because people search for both words; the engine underneath is identical.

What beautifying does and does not change

Changes: indentation, line breaks and spacing around separators.
Optionally changes: the order of object keys, when you enable Sort keys.
Never changes: values, types, array order, or the number of significant digits in a number as written by the JSON serializer.

When to sort keys

Sorting keys produces a canonical form, which is useful when you want to diff two documents that were generated by different services, or when you need a stable input for a hash. Avoid it on files where a human-chosen key order carries meaning — many configuration formats put the important settings first on purpose.

Working with configuration files

Configuration files are the most common thing people beautify, and they are also the most likely to contain JSON-with-extras: comments, trailing commas, single quotes. Jsonviewpro detects those precisely and offers a deterministic repair, so you can convert a JSONC-style file into strict JSON in one step and see exactly what changed.

Frequently asked questions

Is beautifying the same as formatting?

Yes — the two words describe the same operation, and Jsonviewpro uses the same engine for both.

Will sorting keys break my file?

Not for any correct JSON parser: object key order is not significant in JSON. It can still be undesirable when a human reads the file, so it is off by default.

Can I beautify a file with comments in it?

Comments are not valid JSON, so the document will not parse. Jsonviewpro identifies them and can strip them as part of a suggested repair.