Free online JSON value extractor. Extract all values for any key from nested JSON with one click. Shows JSONPath for each value with deduplication. Copy or download results. 100% browser-based — your data never leaves your device.
100% browser-based — your data never leaves your device
Extract all values of a specific key from JSON data. Enter a key name and get all matching values in a clean list for copy or download.
Copy your raw JSON data and paste it into the input textarea above.
Type the name of the JSON key whose values you want to extract (e.g., 'name', 'id', 'email').
Click Extract to get all matching values. Then copy them to your clipboard or download as a text file.
Drop a file here or click to browse
Ctrl+Enter to extract
Format, minify, validate, and explore JSON with tree view, JSONPath queries, and multi-format export — the complete JSON workbench.
JSON CompareCompare two JSON files side by side with real-time diff highlighting.
CSV to JSON ConverterConvert CSV data to JSON format with support for headers and custom delimiters.
YAML to JSON ConverterConvert YAML data to JSON format with support for complex nested structures.
JSON ValidatorValidate JSON data and detect syntax errors with detailed error messages and line numbers.
JSON to TOML ConverterConvert JSON data to TOML format for configuration files.
JSON Schema GeneratorGenerate JSON Schema (draft-07) from sample JSON data automatically.
HTML ↔ JSON ConverterConvert HTML markup to structured JSON and back.
JSON to CSV ConverterConvert JSON arrays to CSV format with customizable delimiter, headers, and nested object flattening.
JSON Query ToolExtract values from JSON using dot-notation and bracket-notation paths.
JSON to TypeScriptConvert JSON to TypeScript interfaces instantly. Generate typed interfaces from JSON samples for type-safe development.
JSON to PythonConvert JSON to Python dataclasses instantly. Generate typed Python classes from JSON samples for type-safe data handling.
JSON Node Value Extractor is a free online json tool that extract all values of a specific key from json data. enter a key name and get all matching values in a clean list for copy or download. It works entirely in your browser — no downloads, no installations, and no server uploads required. backend developers, frontend engineers, DevOps engineers use JSON Node Value Extractor when they need a fast, privacy-respecting way to process json data without installing additional software. It supports capabilities such as deep search, duplicate values, clean output. Additional features include export options. Common use cases include extracting all email addresses or user ids from complex json responses, auditing json data by collecting values of specific keys across nested structures, preparing extracted json values for import into spreadsheets or databases. All processing happens locally using modern browser APIs, which means your data never leaves your device. This makes JSON Node Value Extractor ideal for working with sensitive data, proprietary code, or any situation where privacy matters.
JSON Node Value Extractor is a free online json tool that helps you extract all values of a specific key from json data. enter a key name and get all matching values in a clean list for copy or download. Key capabilities include deep search, duplicate values, clean output. All processing is done locally in your browser — no data is uploaded, stored, or shared with any server. There are no sign-ups, no file size limits, and no hidden charges. It is commonly used to extracting all email addresses or user ids from complex json responses.
Copy your raw JSON data and paste it into the input textarea above.
Type the name of the JSON key whose values you want to extract (e.g., 'name', 'id', 'email').
Click Extract to get all matching values. Then copy them to your clipboard or download as a text file.
| Category | Details |
|---|---|
| Input Limits | Maximum file size: Browser memory bound (~2 GB) |
| Nesting depth: Unlimited (browser stack limit) | |
| Supported Formats | JSON, JSONC (with comments), JSON5 (extended syntax) |
| Browser Engine |
|
All operations run entirely in your browser using built-in JSON APIs. No server uploads, no data storage, and no third-party requests.
JSON Node Value Extractor is ideal when you need to extracting all email addresses or user ids from complex json responses without installing software or uploading data to a server. Since everything runs in your browser, there is no setup time and no risk of your data being stored on external servers. For for persistent editing environments with linting, consider using VS Code with JSON extension. For for server-side JSON processing in scripts, jq (command-line) may be a better fit. JSON Node Value Extractor fills the gap between heavyweight desktop tools and insecure online services that require uploading your data.
No. JSON Node Value Extractor processes everything entirely in your browser using JavaScript. Nothing you type, paste, or upload is ever transmitted to any server. Your data never leaves your device.
Yes. The tool recursively searches through all nested objects and arrays to find matching keys at any depth.
The tool will return an empty list. Double-check the key name spelling and case — JSON keys are case-sensitive.
Searches for the key at all nesting levels — finds values in nested objects and arrays automatically.
Extracts all occurrences including duplicates — perfect for data analysis and auditing.
Results are displayed as a numbered list with one value per line for easy reading.
Copy extracted values to clipboard or download them as a text file for further processing.
JSON Node Value Extractor is useful in a variety of scenarios across different workflows:
Extracting all email addresses or user IDs from complex JSON responses
Auditing JSON data by collecting values of specific keys across nested structures
Preparing extracted JSON values for import into spreadsheets or databases
JSON keys are case-sensitive. If you search for 'Name' but the actual key is 'name', no results will be found.
Keys like 'id', 'name', 'email', 'title', and 'type' appear across many JSON structures. Start with these for general extraction.
Explore more tools in the JSON workspace:
JSON Formatter
Format, minify, validate, and explore JSON with tree view, JSONPath queries, and multi-format export — the complete JSON workbench.
JSON Compare
Compare two JSON files side by side with real-time diff highlighting.
CSV to JSON Converter
Convert CSV data to JSON format with support for headers and custom delimiters.
YAML to JSON Converter
Convert YAML data to JSON format with support for complex nested structures.
JSON Validator
Validate JSON data and detect syntax errors with detailed error messages and line numbers.
JSON to TOML Converter
Convert JSON data to TOML format for configuration files.