JSON Formatter
Format, beautify, minify, and validate JSON instantly.
Syntax colour key
JSON (JavaScript Object Notation) is a lightweight text format for data interchange. Keys must be double-quoted strings. Values can be strings, numbers, booleans, null, objects, or arrays.
How it works
1. Upload
Select or drag your file onto the upload area.
2. Process
Your file is processed instantly — nothing is stored.
3. Download
Download your result with one click. Done.
Why Criply
Private by default
Client-side tools never upload your files. Server-side tools delete them immediately after processing.
No account needed
Just upload and go. No email, no password, no account — ever.
Works on any device
Fully browser-based. Works on desktop, tablet, and mobile with nothing to install.
Frequently asked questions
It parses your JSON and reformats it with consistent 2-space indentation and line breaks, making it easier to read. The Minify mode does the opposite — removes all whitespace to produce the most compact possible output.
Related tools
Paste any JSON and instantly format it with proper indentation, minify it to a single line, or validate it and see the exact error location. Includes syntax highlighting — keys, strings, numbers, booleans, and null values are colour-coded for readability.