Free JSON Beautifier

🟢 Runs Locally — verified: your files are processed in this browser. No uploads.

Turn minified JSON into clean, readable, indented output in one paste.

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Runs entirely in your browser — paste text and watch the results update instantly. Nothing is uploaded.

100% Client-Side — Your text stays in your browser. Nothing is uploaded.

How to use this tool

  1. 1

    Paste minified JSON

    API bodies, logs, config exports squashed onto one line.

  2. 2

    It expands instantly

    Nested objects and arrays spread onto clear indented lines.

  3. 3

    Copy or download

    Readable output is ready for debugging, docs or PRs.

Key features

InputOutput
{"a":1,"b":{"c":2}}Two-level indented structure
Long arraysOne element per line
Nested objectsClear depth with 2-space indent
Invalid inputInline error — no crash

Privacy: your text never leaves your browser

Every Toolflect Text Tool is 100% client-side. The moment you type or paste text, it is analyzed by JavaScript running inside this browser tab. Your text is never sent to our servers, never stored in a database, and never shared with any third party or AI service. Visit counting (see the note at the foot of this page) is separate from your text and never receives it.

  • No uploads, no accounts, no sign-up
  • Your text is processed locally in your browser and never stored.
  • Works offline once the page has loaded
  • Close the tab and your text is gone from memory

You can even verify it yourself: open your browser's developer tools, switch to the Network tab, and type into the tool — no request ever carries your text. You will also see the Google Analytics request that counts the visit; it carries a page view and never anything you typed, and no cookie or identifier is stored until you accept analytics.

Frequently asked questions

Beautifier vs Formatter?
Beautifier always uses a clean 2-space indent; the Formatter adds an indent-size selector.
Are values changed?
Never — only whitespace is added; keys, numbers and text stay byte-identical.
Does it handle big payloads?
Yes — formatting is a single local pass, fast even for large documents.
Local processing?
Always — nothing leaves your browser.

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Your text stays in your browser and is not uploaded. We use Google Analytics to count visits; until you choose it runs without cookies and stores nothing on your device. · Privacy Policy