JSON Validator
How to Use
1. Paste JSON data into the editor.
2. Click "Validate & Format" to check its syntax.
3. Valid JSON is formatted and accompanied by a success message.
4. Invalid JSON displays a detailed error message.
Tips
1. Use "Minify" to remove unnecessary spaces and line breaks.
2. Use "Copy" to copy the editor contents instantly.
3. Syntax highlighting is applied automatically.
4. The editor is designed to handle large documents smoothly.
JSON Tools FAQ
Is my JSON validated in the browser?
Yes. Validation, formatting, minifying, escaping and unescaping all run locally; your JSON is never uploaded.
What can the JSON tool do?
It validates syntax, beautifies (formats) and minifies JSON, and escapes or unescapes strings, with real-time feedback.
Is there a size limit?
There is no hard cap, but it is bounded by your browser's memory. Very large files may be slower.
Does it keep my data private?
Yes. Everything is processed on your device and nothing is sent to any server.