Format Json Online
JSON Formatter & Beautifier is a free online JSON Tools tool that pretty-print JSON with configurable indentation instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server. No download or account is required: the tool loads in under a second and works offline-friendly after the first visit.
How to use
Using JSON Formatter & Beautifier takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
- No download or account is required: the tool loads in under a second and works offline-friendly after the first visit.
Examples
{"name":"26173","tools":["base64","uuid"],"count":184,"nested":{"ok":true}}Use cases
- Pretty-print JSON with configurable indentation.
- Because everything is computed client-side, JSON Formatter & Beautifier is safe to use with sensitive data such as API keys, tokens or private logs.
FAQ
What is JSON Formatter & Beautifier?
JSON Formatter & Beautifier pretty-print JSON with configurable indentation. It runs entirely in your browser, so your data stays private.
Is JSON Formatter & Beautifier free to use?
Yes. JSON Formatter & Beautifier is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.
Runs 100% in your browser — your data never leaves your device.