Skip to content
Convert tools

JSON to Query String

Build URL query parameters from a JSON object, including repeated array values.

Convert in your browser · No sign-up

Only scalars and arrays of scalars are supported. Null becomes an empty value, spaces become +, and nested objects are rejected.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

Result

Add your input or load an example, then run the tool. Your result will appear here.

How to use

  1. Build URL query parameters from a JSON object, including repeated array values.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

{"tag":["a","b"]} → tag=a&tag=b

Details and limitations

Text stays in your browser; it is not sent to a conversion server.

Format references

Tool page updated: