Data converters
JSON Minifier
Remove whitespace from valid JSON data. Nothing you enter leaves your browser.
Your result will appear here.
What this tool does
About the JSON Minifier
Remove whitespace from valid JSON data. It is useful when data needs to move between spreadsheets, APIs, configuration files, databases, or documentation without retyping records.
Minification removes unnecessary whitespace to produce a smaller representation while preserving valid data.
How to use it
- Paste JSON in the input pane. Use the example button if you want to see the expected syntax.
- Review the input for the structure shown in the example. Then select “Minify JSON.”
- Inspect the result for warnings or structural differences, then copy it into the destination system.
Practical example
Start with a known input
Try this sample input:
{
"hello": "world"
}
Select “Minify JSON” and compare the result with the source before using it elsewhere. What to know about the result
- JSON preserves nested objects, arrays, numbers, booleans, and null values, but it requires quoted property names and does not allow comments.
- Processing happens in this browser. Your entered text and selected files are not sent to FormatCalc for conversion.
Common questions
Using the JSON Minifier
Is the JSON Minifier free to use?
Yes. FormatCalc's JSON Minifier is free to use with no account required.
Is my data private when I use the JSON Minifier?
Yes. This tool processes your input locally in your browser. FormatCalc does not upload or store what you enter.
How do I use the JSON Minifier?
Paste or type your input, select any available options, and choose Minify JSON. You can then copy the result.
What should I check before using the result?
JSON preserves nested objects, arrays, numbers, booleans, and null values, but it requires quoted property names and does not allow comments. Processing happens in this browser. Your entered text and selected files are not sent to FormatCalc for conversion.