Will formatting JSON change the data?

Formatting changes the presentation of the JSON, not the parsed data. The goal is to preserve the same values and structure while rewriting the document with cleaner indentation and optionally sorted keys.

Why would I sort keys in JSON?

Sorting keys can make object-heavy payloads easier to scan and can reduce noisy diffs in version control. It is especially useful when multiple people edit large JSON files or when generated payloads need stable output.

Can I format API response JSON with this tool?

Yes. The formatter works well for copied API responses, request payloads, config files, and fixtures. It helps turn compact or messy JSON into something easier to inspect and debug.

Does formatting happen online or locally?

Formatting happens locally in your browser. Your JSON is not sent to a server, which is useful for private data and internal payloads.

What if the JSON is invalid?

The formatter must parse the document before it can rewrite it. If the JSON is invalid, the tool shows the parsing error instead of generating formatted output.

JSON Formatter

Format and beautify JSON with consistent indentation and optional key sorting. Perfect for readable API payloads, config files, test fixtures, and stable review output in version control.

json

formatter

beautify

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Quick Presets

Examples for common JSON processing workflows

JSON Input & Settings

Paste JSON and rewrite it into a cleaner, readable format for inspection and sharing.

Characters: 0

Lines: 0

Bytes: 0

Indentation

2 spacesCompact output for most JSON workflows4 spacesMore open spacing for manual inspection

Key Order

Keep original orderPreserve the object order from the source documentSort keysNormalize object keys for more stable review output

How it works: Formatting parses the JSON first, then rewrites it with consistent indentation. Optional key sorting helps normalize object-heavy payloads for review and version control.

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