Prettify JSON

You fetched an API response, opened a config file, and found a single unbroken line of JSON with no indentation at all. Prettify JSON turns that wall of text into a clean, properly indented structure you can actually read. Nested objects line up, arrays become obvious, and the whole document gains shape in one click.

Choose between 2-space, 4-space or tab indentation to match your project’s conventions, and optionally sort object keys alphabetically so settings and fields are grouped in a predictable order. The beautified output can be copied straight into your editor or downloaded as a file, and because formatting runs entirely in the browser, sensitive payloads never leave your machine.

• Instant beautification: one click turns minified JSON into readable, indented output.
• Flexible indentation: 2 spaces, 4 spaces, 8 spaces or tabs to match your code style.
• Optional key sorting: alphabetise object keys for easy scanning of config files.
• Syntax validation built in: invalid JSON is reported clearly instead of producing broken output.
• Copy or download: grab the formatted result or save it as a file.
• Live updates: re-format as you paste and type with the live toggle.
• Private by design: all processing happens locally in your browser.

1. Paste your JSON or open a .json file.
2. Choose the indentation you want — 2 spaces, 4 spaces or tabs.
3. Optionally sort keys alphabetically for easier scanning.
4. Copy or download the beautified result.

Example 1 — API debugging. Paste a response body from your browser’s network tab and read nested fields instantly instead of copying the minified payload into a text editor.

Example 2 — Config maintenance. A hundred-line settings file with sorted keys is far easier to audit than a scrambled one. Sort, save, and commit.

Example 3 — Code formatting. Re-format pasted JSON so it matches the 2-space style of your codebase before pasting it into a test fixture.

• Readable at a glance — structure becomes visually obvious.
• Faster debugging — spot nested values without counting braces.
• Consistent style — match your project’s indentation every time.
• Sorted configs — alphabetised keys make large files scannable.
• Free and private — runs locally, no uploads.