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JSON Tools

DevTools JSON tools cover format, validate, minify, to CSV/XML, diff, JSONPath, schema generate/validate, and tree view — 10 pages total, all running locally in your browser, free with no signup.

JSON Formatter

Format messy or minified JSON into readable indented structure with 2/4-space options—100% local in the browser.

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JSON Validator

Check JSON syntax and pinpoint error line and column with detailed debugging information.

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JSON Minifier

Strip whitespace and newlines to produce a single-line minimal payload—ideal for API transport.

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JSON to CSV

Convert JSON arrays or objects into CSV tables for Excel and database import.

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JSON to XML

Convert JSON data into well-formed XML with a customizable root element name.

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JSON Diff

Compare two JSON documents side by side with highlights for added, removed, and changed fields—great for code review.

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JSON Schema Generator

Infer and generate a JSON Schema (draft-07) definition from sample JSON data.

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JSONPath Query

Query JSON data with JSONPath expressions and get matching node results instantly.

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JSON Tree Viewer

Render JSON as a collapsible interactive tree for browsing deeply nested structures.

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JSON Schema Validator

Validate JSON data against a JSON Schema and get detailed structural constraint errors.

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About this tool

JSON is the most common format for APIs and configs. This toolset covers the full workflow from syntax validation to structural analysis for frontend, backend, and ops workflows.

How to use

  1. Pick a JSON tool from the overview (format, validate, JSONPath, etc.).
  2. Paste JSON text or load a sample.
  3. Run the action and copy or download the result.

FAQ

What JSON tools are available?

Format, validate, minify, to CSV, to XML, diff, schema generate, JSONPath, tree view, and schema validate — 10 pages covering common JSON tasks.

Is my JSON data uploaded?

No. All JSON tools process data locally in your browser via JavaScript.

What JSON file size is supported?

A few MB typically works well. For very large files, use jq or similar CLI tools.

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