How to use JSON Beautifier
- 1. Paste JSON. Drop a .json file or paste a minified payload. Parsing stays in this tab.
- 2. Click Pretty print. Choose 2-space, 4-space, or tab indentation. Optionally sort keys for stable diffs.
- 3. Copy or download. Use the formatted pane, or switch to Tree view to explore nested objects.
About this tool
Searchers looking for “json beautifier” want whitespace, not a lecture on RFC 8259. This URL is that job: paste compact JSON, get indented output, with validation if the document is broken.
Beautify vs minify
Beautifying adds indentation for humans. Minifying strips it for wire size. Gzip often shrinks pretty JSON close to minified size, so beautify is the right default for debugging and code review.
When sorting keys helps
Object key order is preserved unless you enable Sort keys. That is useful before committing fixtures so unrelated key reordering does not noise up your diff.
Code examples
JavaScript
const payload = JSON.parse(raw);
console.log(JSON.stringify(payload, null, 2));Python
import json
print(json.dumps(json.loads(raw), indent=2, sort_keys=True))Go
var buf bytes.Buffer
if err := json.Indent(&buf, []byte(raw), "", " "); err != nil {
log.Fatal(err)
}