TopToolAIJSON Formatter & Validator
Checks whether a JSON string is valid and, if so, reformats it with proper indentation so it is easy to read. Invalid JSON is reported with the specific parser error so you can find the problem.
How to use JSON Formatter & Validator
Step-by-step guide to the boxes below. Open it only if you need help.
How to use JSON Formatter & Validator
Step-by-step guide to the boxes below. Open it only if you need help.
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1
Paste your JSON Text box
Paste the JSON text you want to check and tidy up. If it is invalid, the error is shown.
Example: {"name":"value"}
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2
Indent Choose one
How many spaces to indent each level of the output. 2 or 4 spaces are the most common.
Choose one: 2 spaces4 spacesTab
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3
Press “Format & Validate”
Click the button under the boxes. If something is missing or not valid, a short message tells you which box to fix.
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4
Read your result
Your answer appears under the button, with a short note in plain words where it helps. Change any box and press again to compare different numbers.
JSON Formatter & Validator FAQs
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