Wivrix

Developer

JSON Formatter & Validator

Pretty-print, validate, minify JSON, view as tree, convert to YAML or XML, get statistics. Fast, free, and runs entirely in your browser.

🔒 100% private. Your JSON is processed locally and never uploaded.

Empty? Drop a .json file here or .

Indent
More options
Developer / raw response

What is this tool?

Pretty-print, minify, and validate JSON with line-level error pointers.

How to Use

  1. Paste raw JSON into the editor.
  2. Click format to indent or minify.
  3. Fix errors using the line/column hint if validation fails.
  4. Copy the cleaned JSON for your app or config file.

Frequently Asked Questions

Is my JSON uploaded?

Parsing happens locally in your browser.

Why trailing commas fail?

Standard JSON forbids them — remove commas after the last property.

Related tools

People who use this tool often need these too.

CSV to JSON Converter

Convert CSV to JSON and back, with header detection.

 Developer

XML Formatter & Validator

Format, indent and validate XML documents.

 Developer

SQL Formatter & Beautifier

Format SQL queries into readable, consistent style.

 Developer

Text Diff Checker

Compare two blocks of text and highlight every difference.

 Text & Writing

Other tools

There are more calculators, converters and editors on Wivrix. If something is missing, tell us.

Browse all tools Suggest a tool