Beautify, minify, validate, filter and query JSON with a tree view
Comma-separated fields. Use dot paths (e.g. user.name) for nested fields. Matched 0 field(s)
Extract values with a JSONPath expression. Supports $, .field, [0], [*], ..field and [?(@.field < 20)] filters.
The JSON Formatter is a practical tool for developers to format, minify, validate and beautify JSON data. Whether debugging API responses, processing configuration files, or analyzing complex JSON structures, this tool helps you work more efficiently.
It supports syntax highlighting, automatic indentation and error messages, making your JSON data clearer and easier to read. It also provides a minify feature to strip unnecessary whitespace and line breaks, reducing JSON payload size and improving transfer efficiency.
The tool also has built-in JSON validation that quickly detects syntax errors and gives detailed messages to help you locate and fix issues. All operations run locally and never upload your data.
Beyond formatting, it can filter properties and run JSONPath queries against your data, and an interactive tree view lets you collapse, expand, and click any key to copy its path — useful when working with large or deeply nested JSON.
Formatted JSON has a clear structure that is easier to read and understand, especially when dealing with complex nested data.
Quickly identify JSON syntax errors with detailed messages to help developers locate and fix problems fast.
Minify to reduce file size and optimize transfer, or beautify to make data comparison and version control easier.
Automatically indent and format JSON data with customizable indentation for better readability.
Strip all unnecessary whitespace and line breaks to produce a compact JSON string and reduce transfer size.
Filter JSON data by property name to extract only the fields you need and simplify analysis.
Validate JSON syntax and provide detailed error messages and location hints to fix problems quickly.
Color-code the different parts of JSON so the data structure is clear at a glance.
All operations run locally in your browser; your data is never uploaded, protecting your privacy.
Extract exactly the values you need with a JSONPath expression, including filters like [?(@.price < 20)].
View output as a collapsible tree, expand or collapse everything at once, and click any key to copy its path.
name,id) or run a JSONPath query to extract specific values.Paste your JSON into the input box above — it's formatted automatically as you type or paste. The formatter indents and color-codes your JSON instantly, entirely in your browser — no upload and no registration required.
The tool validates as it formats. If your JSON is invalid, you'll see a clear error message pointing to the syntax problem, so you can fix it quickly.
Format (beautify) adds indentation and line breaks for readability. Minify removes all whitespace to shrink the payload, which is useful for faster transfers and smaller storage.
Yes. Everything runs 100% client-side in your browser, so your data never leaves your computer.
Open the Advanced section, enter comma-separated property names in the filter field, and click "Filter". The tool keeps only those fields — including nested matches — so you can extract just what you need from a large JSON document.
Yes. Open the Advanced section, type a JSONPath expression (e.g. $.store.book[*].title) and click "Query" to extract matching values, including filters like [?(@.price < 20)].
For a step-by-step deep dive, read our guide: How to Format and Validate JSON. Want to pull specific values out? See How to Query JSON with JSONPath.