Free online JSON query tool. Extract values from JSON using dot-notation paths with array index support. See extracted value type and detailed error messages for missing keys or out-of-bounds access. 100% browser-based with zero uploads.
100% browser-based — your data never leaves your device
Extract values from JSON using dot-notation and bracket-notation paths.
Enter your JSON object or array in the JSON input area.
Type a dot-notation path like users.0.name or data.items[0].id to target specific values.
Click Query to see the extracted value with its type (string, number, object, array, etc.).
Drop a file here or click to browse
Ctrl+Enter to query
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JSON Query Tool is a free online json tool that extract values from json using dot-notation and bracket-notation paths. It works entirely in your browser — no downloads, no installations, and no server uploads required. backend developers, frontend engineers, DevOps engineers use JSON Query Tool when they need a fast, privacy-respecting way to process json data without installing additional software. It supports capabilities such as dot notation paths, array index support, type display. Additional features include error feedback. Common use cases include extracting specific values from large json api responses, debugging json structures by querying nested paths, validating json structure by testing path existence. All processing happens locally using modern browser APIs, which means your data never leaves your device. This makes JSON Query Tool ideal for working with sensitive data, proprietary code, or any situation where privacy matters.
JSON Query Tool is a free online json tool that helps you extract values from json using dot-notation and bracket-notation paths. Key capabilities include dot notation paths, array index support, type display. 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 specific values from large json api responses.
Enter your JSON object or array in the JSON input area.
Type a dot-notation path like users.0.name or data.items[0].id to target specific values.
Click Query to see the extracted value with its type (string, number, object, array, etc.).
| 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 Query Tool is ideal when you need to extracting specific values from large json api 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 Query Tool fills the gap between heavyweight desktop tools and insecure online services that require uploading your data.
No. JSON Query Tool 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.
Dot notation (user.name), bracket notation for arrays (items[0]), and mixed (data.users[1].email).
A clear error message is displayed showing which part of the path failed, making it easy to debug your query.
Query values using intuitive dot-notation paths like address.city or users.1.name.
Access array elements with bracket notation like items[0] or nested like data.items[2].title.
See the data type (string, number, boolean, object, array, null) of each extracted value.
Clear error messages when paths don't exist or JSON is invalid, showing exactly where the path failed.
JSON Query Tool is useful in a variety of scenarios across different workflows:
Extracting specific values from large JSON API responses
Debugging JSON structures by querying nested paths
Validating JSON structure by testing path existence
If a key contains spaces or special characters (e.g., 'first name'), use bracket notation: data['first name'] or data.items[0]['@id'].
Use items[0] for the first element, items[1] for the second, etc. Negative indices are not supported.
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