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JSON Utility

json-util.comAPI design, testing & docs

PulseGate's liveness check found it on 8 Oct 2026; it has been in the index since 24 Aug 2026. How this is checked

JSON Utility is a free browser-based toolkit for working with JSON, YAML, and XML. It includes validators, formatters, converters, diff tools, JSONPath evaluation, batch validation, and validators for OpenAI and Anthropic tool-calling schemas, with processing performed locally in the browser.

Inferred · not functionally tested

FreeWebCloud-managed
JSON Utility preview
Visit json-util.com

Overview

6 features

Purpose: Debugging, validating, converting, and comparing structured data and API schemas without uploading sensitive files.

Inferred · not functionally tested

Audience: developers and API engineers

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: free · license: Proprietary · platforms: WEB · deployment: browser, cloud_managed

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: json-util.com. These links do not verify the individual claims.

JSON Utility sits in PulseGate's API design, testing & docs category. Inferred · not functionally tested: Debugging, validating, converting, and comparing structured data and API schemas without uploading sensitive files. Inferred · not functionally tested: JSON Utility is a B2B product aimed at developers and API engineers. Basis unknown · not verified: JSON Utility costs nothing to use. Basis unknown · not verified: It runs on the web.

Inferred · not functionally tested: Among its 6 catalogued features are JSON validation, YAML validation, and XML validation.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • JSON validation
  • YAML validation
  • XML validation
  • Data formatting
  • Format conversion
  • JSONPath evaluation

Topics: Inferred · not functionally tested

Tags
json-validationyaml-toolsxml-toolsapi-schema-testingjsonpath

JSON profile · Text profile · Access guide

Built with & integrations

Hosting
Vercel
Runs on
BrowserCloud-managed
Detected from
Vercel
x-vercel-id header · x-vercel-cache header

Trust & compliance

Public signals
HTTPSPrivacy PolicyFree tier
Legal
Privacy Policy

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed24 Aug · 19:37 UTC
    Validating OpenAI & Anthropic Tool-Calling Schemas seen via DEV.to articles
    Source: DEV.to articles · Open

Frequently asked questions about JSON Utility

What is JSON Utility?
Inferred · not functionally tested: Debugging, validating, converting, and comparing structured data and API schemas without uploading sensitive files. It is catalogued under API design, testing & docs on PulseGate.
Who is JSON Utility for?
Inferred · not functionally tested: JSON Utility is a B2B product built for developers and API engineers.
Does JSON Utility have a free plan?
Basis unknown · not verified: Yes — JSON Utility is free to use.
What platforms does JSON Utility run on?
Basis unknown · not verified: JSON Utility runs on the web.
Is JSON Utility still active?
PulseGate's liveness check found it on 8 Oct 2026.
What are alternatives to JSON Utility?
Similar projects tracked by PulseGate include JSONUtils, Online JSON Tools, and Formatterjson.JSONUtilsOnline JSON ToolsFormatterjson

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