UtilityDock

Free browser-based data tool

JSON Array Value Extractor

Extract values from JSON arrays instantly.

Your files never leave your computer.All processing happens locally inside your browser.

  • Select one or more top-level or nested paths
  • Retain nulls and track omitted missing values
  • Download JSON or newline-separated TXT
1

Upload JSON

Choose a .json file. It is read only by this browser tab.

Drop a JSON object array file here

or use the file browser

2

Paste and validate a JSON object array

UtilityDock detects selectable leaf paths without changing your source.

Paste JSON or upload a file to begin.

What JSON value extraction is

Pull focused values out of object arrays

Value extraction reads selected fields from each record and creates one ordered list. UtilityDock supports nested paths, keeps explicit nulls, omits missing paths, and performs the entire workflow locally.

Preparing datasets

Create a compact list for downstream work

Extract identifiers, labels, scores, dates, or nested values before importing them into a spreadsheet, script, notebook, or review workflow. Download structured JSON or a simple one-value-per-line text file.

API analysis

Inspect response values without writing a query

Pull resource IDs, statuses, error codes, or nested response attributes from saved API payloads. Missing-value and null counts make incomplete response data visible immediately.

Analytics workflows

Collect dimensions and measures in source order

Select multiple paths to create a row-major stream: each record contributes its available selected values before the next record begins. This predictable order works well for quick inspection and lightweight processing.

Examples

Select paths that match the analysis

GoalFields to extract
Build an ID listid
Review contactsprofile.name, profile.email
Inspect model resultslabel, score

Data Toolkit

Continue with related UtilityDock JSON workflows

JSON Array Field SelectorKeep selected fields inside object records.JSON Array Field RemoverDelete fields you do not need.JSON Array Field RenamerMap fields to new names.JSON Array FilterKeep records that match a field rule.JSON Array DeduplicatorRemove repeated objects from an array.JSON Array GrouperOrganize records by shared values.JSON FlattenerConvert nested values into paths.JSON to CSVExport object arrays as spreadsheet rows.

FAQ

Questions about extracting JSON values

Does UtilityDock upload or store my JSON?

No. Your files never leave your computer. Validation, field discovery, extraction, preview, copying, and download creation all happen locally inside your browser.

What JSON shape can I use?

Version 1 accepts a non-empty array of JSON objects at the document root.

Can I extract more than one field?

Yes. Values are emitted record by record, using the discovered path order within each source record.

How are missing and null values handled?

A missing path emits no value. An explicit null is retained as a JSON null and as the text null in TXT output.

What does the TXT download contain?

TXT contains one extracted value per line. Strings are unquoted, embedded line breaks are escaped, and numbers, booleans, nulls, objects, and arrays use JSON notation.

Does extraction change source order?

No. Records remain in source order, and selected fields use the stable detected-path order shown in the interface.

Can this tool calculate or transform values?

No. Version 1 extracts exact stored values. It does not support expressions, regular expressions, calculated fields, or APIs.