What is a multi-step query pipeline in this tool?

It allows you to chain queries sequentially. Each line in the pipeline text area runs its JSONPath expression against the output of the previous line.

Does this tool support filtering and slicing?

Yes, it supports standard JSONPath filter expressions like [?(expr)] and array slicing syntax like [start:end:step].

Is my JSON data sent to a server?

No, the playground runs entirely offline in your browser, ensuring your data remains private.

How does the sharing feature work?

It generates a URL-safe token containing your JSON data and pipeline configuration, which you can copy and share with others.

What render modes are available?

You can choose between 'Values only' (pretty JSON), 'Paths + values' (showing the exact JSONPath location for each match), and 'Raw'.

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JSONPath REPL Playground

An interactive JSONPath REPL that runs multi-step query pipelines against any JSON. Write one JSONPath expression per line (e.g. $..book[?(@.price<10)] then $[0:5]) and see each step's matches with counts, paths, and values — plus a shareable URL that encodes your data and pipeline. Supports recursive descent ($..), wildcards ([*]), filters ([?(@.price<10)]), slices ([0:5:2]), and negative indices.

Details

What this tool helps you do

A read-eval-print loop for JSONPath queries, built for debugging API responses and exploring JSON datasets:

Paste JSON into the data field (defaults to the classic "store/book" example).
Write a pipeline — one JSONPath expression per line; each line runs against the previous line's output.
See every step — each line renders its own card with the expression, match count, and matched nodes.
Share it — generates a URL-safe token encoding your JSON + pipeline.
Supported syntax — $ root, .key / ['key'], * wildcard, .. recursive descent, indices, [start:end:step] slices, [?(expr)] filters.

Runs fully offline.

Execution

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Prepared example runs

Click an example to fill the form automatically. File inputs still need an upload.

2 examples

Find cheap books, then list their titles

A two-step pipeline: recursive-descent filter for books under 10, then wildcard to project just the titles.

<div class="jp-step"><span class="jp-step-badge jp-ok">2 matches</span></div><div class="jp-final"><pre>["Sayings of the Century", "Moby Dick"]</pre></div>

Slice the first two fiction books

Filter fiction category then take the first two via a slice [0:2], shown in paths+values mode.

<div class="jp-final"><table class="jp-paths"><tr><td>$[0]</td><td>Sword of Honour</td></tr><tr><td>$[1]</td><td>Moby Dick</td></tr></table></div>

Inputs

Set the required fields, then run the tool.

5 options

ContentPaste or type the main input values.3

JSON datatextareaRequiredPipeline (one step per line)textareaRequiredHistory titletextOptionalOptional label saved with this query so you can find it again.

SettingsAdjust formats, ranges, numbers, and modes.2

Render modeselectOptionalMax resultsnumberOptional

Result

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Samples

JSONPath REPL Playground

What this tool helps you do

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Inputs

Result

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Key facts

Overview

When to use

How it works

Use cases

Examples

1. Filtering and Projecting Book Titles

2. Slicing Specific Array Elements

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