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Index JSON Records by Key

Create a keyed object from records with unique non-empty string keys.

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A useful toolkit for text, data, images and calculations.

01
Add your input
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02
Make it yours
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03
Take the result
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JSON key index builder online

Create a keyed object from records with unique non-empty string keys. Use this when inspecting or preparing text and structured data. Test the included sample first, then replace it with a small representative part of your own input.

How to use it

Paste your input. Review key field. Choose Run tool and review the result. Copy or download the output when it matches your requirements.

Options and example settings

Option	Choices / value	Example default
Key field	Enter a value for key field.	id

Worked examples

Use this when inspecting or preparing text and structured data. Test the included sample first, then replace it with a small representative part of your own input.

Reproducible sample

Settings: Key field: id

Input:

[{"id":"a","v":1},{"id":"b","v":2}]

With the settings above, the output is:

Output:

{
  "a": {
    "id": "a",
    "v": 1
  },
  "b": {
    "id": "b",
    "v": 2
  }
}

The example returns an object with 2 top-level fields. The fields “a”, “b” identify the returned values or sections.

Limitations and common mistakes

Results reflect the supplied input and selected options; review the example and output before using it.
Inputs are limited to 250,000 characters in total. Invalid input is reported rather than silently corrected.

Frequently asked questions

How can I check the result?

Run the fixed worked example with the documented settings, compare its output, then check your own input format and units before copying a result.

Does this require an account?

No. This bundled tool runs in your browser without a conversion account.

How can I generate a keyed object from records with unique non-empty string keys in JSON online?

Paste your input. Review key field. Choose Run tool and review the result. Copy or download the output when it matches your requirements.

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.