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Tech riderRev. 4 Oct 2026

JSON Crack

Ch 076.9of 29 JSON Tools
  1. 1Runs onBrowser, Web
  2. 2CostsFree plan
  3. 3Schema validationYes
  4. 4JSONPath queryingYes
  5. 5jq queryingYes
  6. 6Available platformsWeb, chrome extension, self hosted
6 lines stated Written from the maker's own pages: jsoncrack.com
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The JSON Crack homepage

Overview

JSON Crack is ranked #7 of 29 in JSON tools on Specifiction. It runs on Browser extension, Web. There is a free plan.

JSON Crack plans and pricing

All plans
Free Free free-forever open-source online tool · approximately 300 KB, depending on data complexity and hardware jsoncrack.com · 4 Oct 2026

Compared on JSON tools

Free plan
Yesjsoncrack.com
Schema validation
Yesjsoncrack.com
JSONPath querying
Yesjsoncrack.com
jq querying
Yesjsoncrack.com
Available platforms
Web, chrome_extension, self_hostedjsoncrack.com

Facts

Product
JSON Crack is an online viewer that visualizes JSON, YAML, CSV, and XML data as graphs or trees.jsoncrack.com · 4 Oct 2026
Input
Users can upload a JSON file, provide a URL, or enter data in the editor.jsoncrack.com · 4 Oct 2026
Conversion
The tool converts between formats, including JSON to CSV, YAML to JSON, and XML to JSON.jsoncrack.com · 4 Oct 2026
Formatting and validation
It formats JSON and validates JSON, YAML, and CSV.jsoncrack.com · 4 Oct 2026
Code generation
It can generate TypeScript interfaces, Go structs, Rust serde, and JSON Schema.jsoncrack.com · 4 Oct 2026
Schema tools
Its schema tools validate JSON Schema, create mock data, and generate schemas from JSON, YAML, XML, and CSV.jsoncrack.com · 4 Oct 2026
Advanced tools
It includes JWT decoding, data randomization, jq execution, and JSONPath commands.jsoncrack.com · 4 Oct 2026
Export
Users can export graph images as PNG, JPEG, or SVG.jsoncrack.com · 4 Oct 2026
Data handling
The maker says editor data is processed in the browser and is not stored on its servers.jsoncrack.com · 4 Oct 2026
Privacy
The privacy policy says the service may collect usage data and use cookies, and may use Google Analytics.jsoncrack.com · 4 Oct 2026
Data size
The maker says it supports approximately 300 KB, with the limit varying by data complexity and hardware.jsoncrack.com · 4 Oct 2026
VS Code
A VS Code extension lets users visualize JSON directly in the editor.jsoncrack.com · 4 Oct 2026
Integration
Developers can embed JSON Crack using an iframe widget, a postMessage API, or the jsoncrack-react package.jsoncrack.com · 4 Oct 2026
Premium features
The maker says premium features moved to ToDiagram.com, where prior subscribers can use the same credentials.jsoncrack.com · 4 Oct 2026
Audience
The maker describes the tool as suitable for developers, data analysts, and others working with structured data.jsoncrack.com · 4 Oct 2026

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Sources