Input JSON / JSONL / Escaped JSON
Need to format messy JSON data? Our free JSON prettifier lets you instantly format, beautify, and validate JSON, JSONL, and escaped JSON directly in your browser.
No installation required. No data uploaded to any server.
What This JSON Formatter Can Do
ā¤ Beautify JSON Instantly
Convert minified or compressed JSON into clean, readable, properly indented format.
ā¤ Validate JSON Structure
Detect syntax errors and ensure your JSON is valid before using it in your application.
ā¤ Support for JSONL (JSON Lines)
Format JSONL files easily while preserving structure.
ā¤ Handle Escaped JSON
Automatically unescape and prettify escaped JSON strings.
ā¤ Secure & Client-Side Processing
Your data stays in your browser. Nothing is uploaded or stored.
Frequently Asked Questions
What is a JSON prettifier?
A JSON prettifier is a tool that formats raw or minified JSON into a readable, structured layout.
Is this JSON formatter secure?
Yes. All processing happens in your browser. Your data is not sent to any server.
Does it validate JSON?
Yes. Invalid JSON will show formatting errors.
Can I format JSONL?
Yes, JSON Lines format is supported.
Is it free?
Yes, completely free to use.