Convert tools

JSON Key Random Generator

JSON Key Random Generator. Local browser processing.

Convert in your browser · No sign-up

JSON KeyAll encoding tools ↗

Generate unique alphabetic JSON keys with an optional prefix and null values.

Web Crypto / unique A–Z a–z keys / length: 1–64 / count: 1–1000

How to use

  1. Enter your data and parameters, or load the example.
  2. Choose the operation and confirm the input format.
  3. Run the tool, then copy or download the result.

Example

{"key_RANDOM": null}

Details and limitations

Everything runs in your browser; text, files and keys are not uploaded.

Input is limited to 100,000 characters per field. Cancel stops the worker and discards the pending result.

FAQ

Are my keys or files uploaded?

No. Calculation happens locally in a Web Worker. Clearing or leaving the page discards its working state.

Format references

Tool page updated: