JSON Formatter
Beautify, minify and validate JSON in one box — with friendly error messages that point to the exact line and column instead of a cryptic parser trace.
Try it
Nothing leaves your deviceHow to use this formatter
- Paste your JSON. Drop any JSON — from an API response, a config file or a settings object — into the editor.
- Press Format. The JSON is re-printed with two-space indentation, or you press Minify to strip all whitespace instead.
- Fix any errors. If the JSON is invalid, the panel below the editor explains what went wrong and shows the line, column and a snippet.
- Copy or reset. Copy puts the current contents on your clipboard; Reset clears the editor for the next job.
Useful information
JSON (JavaScript Object Notation) is the most common format for APIs and config files — and it is strict: one missing quote or trailing comma and the whole document fails to parse. This tool does two things well: it makes valid JSON readable, and it makes invalid JSON explain itself.
Formatting vs minifying
Formatting (beautifying) adds indentation and line breaks so a human can scan the structure. Minifying removes every optional space and newline, which shrinks the payload you ship to a server or embed in a file. Both produce exactly the same data.
Common JSON mistakes
Keys must be double-quoted, strings use double quotes (not single), and there are no comments or trailing commas. Those three rules cover almost every parse error you will ever see. The error panel highlights where the parser stopped so you can jump straight to it.
Privacy: parsing uses your browser's built-in JSON.parse, so your data never leaves the tab — safe for tokens, internal records and anything sensitive.
Frequently asked questions
How do I format (beautify) JSON?
Paste your JSON into the box and press Format. Jivora parses it and re-prints it with two-space indentation. If the JSON is invalid, it tells you the line and column of the problem.
What is minified JSON?
Minified JSON has all unnecessary whitespace and line breaks removed, so it is as small as possible — ideal for sending over a network or storing in a config file.
Why does my JSON fail to parse?
The usual causes are a missing or curly quote, a missing comma between items, a trailing comma before a closing brace, or an unquoted object key. The error panel shows you where to look.
Does this tool change my data?
No. Formatting only changes whitespace and indentation — the values, key order and types stay exactly as you pasted them.
Is my JSON uploaded anywhere?
No. Parsing and formatting happen entirely in your browser. Your JSON is never sent to a server or stored by Jivora.