---
title: "Query JSON with JSONPath Locally - Blobster Guide"
description: "Run JSONPath queries on JSON and YAML in your browser without an online evaluator. Supported syntax, examples, limits and when to use jq instead."
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language: "en"
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---

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JSONPath guide

# Pull every matching value out of a JSON document.

Open the document in Blobster, open the Query pane and type a JSONPath expression such as $..email or $.items\[\*\].id. Blobster lists every match with its path as you type and copies the matched values as a JSON array. The document stays in your browser.

Published 14 October 2026 3 minute read By Mochavi

[Install Blobster](https://chromewebstore.google.com/detail/blobster/epddolhfilamhbnmgglenceabjbbeeho) [Read as Markdown](https://www.mochavi.com/blobster/guides/query-json-with-jsonpath.md)

Short answer

Use Blobster’s Query pane for path-style JSONPath, meaning child keys, indexes, wildcards and recursive descent, on data you should not paste into an online evaluator. For filter expressions, slices and unions, use a full JSONPath library or jq.

## Key points

-   Supported syntax covers `$`, `.key`, `['key']`, `[0]`, `.*`, `[*]`, `..key` and `..*`.
-   Filters such as `[?(@.price < 10)]`, slices, negative indexes and unions are not supported. Blobster shows an error instead of guessing.
-   Results update as you type, up to 10,000 matches, and the first 200 are listed with their paths.
-   Copy query results puts the matched values on the clipboard as a JSON array.

## Steps

-   Open the document in Blobster.
-   Open Query in the side pane, or run Query with JSONPath from the command palette.
-   Type an expression, or start from one of the examples Blobster offers.
-   Click a result to select that value in the tree.
-   Use Copy query results to copy every matched value.

## Expressions that work

The query runs on the parsed document, so it works on YAML, TOML, CSV rows and NDJSON records as well as JSON.

| What you want | Expression |
| --- | --- |
| Every email address, at any depth | `$..email` |
| The id of every order | `$.orders[*].id` |
| Every SKU in the first order | `$.orders[0].items[*].sku` |
| A key that contains a dot | `$['feature.flag']` |
| Every value in the document | `$..*` |

## What it does not do

Blobster supports the name, index and wildcard selectors and the descendant segment (`..`) from RFC 9535. It does not support filter selectors such as `$.orders[?(@.total > 100)]`, slices such as `[0:2]`, negative indexes or several selectors in one bracket such as `[0,1]`. Each of those returns an error that names the unsupported selector.

When you need a filter, jq handles it locally with `select`, for example `jq '.orders[] | select(.total > 100)' orders.json`. In application code, use the JSONPath implementation your tests or API client already depend on, so the expression behaves the same way there.

## From a value back to its path

Querying goes from a path to values. To go the other way, select a value in the tree and copy its path as JSONPath, jq or JavaScript.

## Sources

-   [RFC 9535: JSONPath](https://www.rfc-editor.org/rfc/rfc9535)
-   [jq manual (see select)](https://jqlang.org/manual/)
-   [Blobster privacy policy](https://www.mochavi.com/privacy/blobster)

Related

[JSONPath, jq and JavaScript paths→](https://www.mochavi.com/blobster/guides/copy-jsonpath-jq-javascript)[Copy JSONPath from JSON→](https://www.mochavi.com/blobster/copy-jsonpath-from-json)[Compare two JSON files→](https://www.mochavi.com/blobster/guides/compare-json-files-locally)

Machine-readable

[Markdown version→](https://www.mochavi.com/blobster/guides/query-json-with-jsonpath.md) [Blobster RSS feed→](https://www.mochavi.com/blobster/feed.xml)

Local-first workbench

## Inspect the data. Keep the document local.

Open JSON, logs, tokens, configs and tables in Blobster without adding an account, telemetry or a public paste URL.

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