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JSON Formatter & Validator VS JSON Placeholder

Compare JSON Formatter & Validator VS JSON Placeholder and see what are their differences

Flagsmith
Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source. featured
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JSON Formatter & Validator logo JSON Formatter & Validator

The JSON Formatter was created to help with debugging.

JSON Placeholder logo JSON Placeholder

JSON Placeholder is a modern platform that provides you online REST API, which you can instantly use whenever you need any fake data.
  • JSON Formatter & Validator Landing page
    Landing page //
    2021-10-08
  • JSON Placeholder Landing page
    Landing page //
    2022-01-17

JSON Formatter & Validator features and specs

  • User-Friendly Interface
    The website has a clean, intuitive design that makes it easy for users to paste their JSON text and quickly format or validate it.
  • Real-time Validation
    As soon as the JSON data is pasted, it automatically validates and provides errors, helping users quickly identify and fix issues.
  • Clear Error Messages
    The tool provides detailed error messages, which makes it easier for users to understand where their JSON is failing validation.
  • Formatting Options
    It provides options to pretty-print JSON, making data easier to read and analyze.
  • No Installation Required
    Being a web-based tool, it requires no download or installation, making it easily accessible from any browser.

Possible disadvantages of JSON Formatter & Validator

  • Internet Connectivity Required
    Because it is a web-based tool, it requires an internet connection to use, which can be a limitation in offline scenarios.
  • Security Concerns
    Pasting sensitive JSON data into a web-based tool can pose security risks, especially if the data contains confidential information.
  • Limited Advanced Features
    The tool does not offer advanced features such as JSON schema validation or linting capabilities that some developers might need.
  • Performance with Large Files
    The tool might experience lag or performance issues when working with very large JSON files.
  • No API Integration
    It lacks an API for programmatic access, which limits automated workflows and integration into development pipelines.

JSON Placeholder features and specs

  • Free to Use
    JSON Placeholder is completely free for developers to use. There are no fees or subscription costs, which makes it accessible for anyone needing mock data quickly.
  • Reliable and Well-Maintained
    The API is maintained and kept up-to-date, ensuring that developers can rely on it for consistent performance and uptime.
  • Ease of Use
    The service is user-friendly, with clear documentation and straightforward endpoints, making it easy for developers to integrate and work with.
  • Variety of Data Types
    JSON Placeholder provides different types of data such as users, posts, comments, and todos, suitable for a variety of testing scenarios.
  • No Authentication Required
    The API does not require any form of authentication, which simplifies the process of making requests and testing applications.
  • Common Data Model
    The data model used by JSON Placeholder represents common entities often found in real-world applications, making it practical for most development purposes.

Possible disadvantages of JSON Placeholder

  • Static Data
    The data provided by JSON Placeholder is static and does not change, which can limit its usefulness for testing applications that require dynamic data.
  • Not Real Data
    The information provided is entirely fictional and may not accurately represent real-world scenarios, potentially leading to less realistic testing environments.
  • Limited Data Size
    The amount of data available is limited, which may not be sufficient for testing applications that require large datasets.
  • No Custom Data Generation
    JSON Placeholder does not offer features to generate custom datasets, which can be a limitation for developers who need specific data formats or structures.
  • Lack of Advanced Features
    The API offers basic CRUD operations but lacks advanced features like filtering, sorting, or pagination, which may be necessary for some testing scenarios.

Analysis of JSON Formatter & Validator

Overall verdict

  • Yes, JSON Formatter & Validator (jsonformatter.curiousconcept.com) is a good tool for handling JSON data. It is reliable, user-friendly, and accessible online without the need for any installations.

Why this product is good

  • JSON Formatter & Validator by Curious Concept is widely regarded as a useful tool for developers and data professionals who need to review, format, and validate JSON data. Its interface is straightforward, and it provides clear feedback on JSON syntax errors, making it a helpful resource for troubleshooting data issues. The tool also offers features like JSON prettification and minification, which are useful for making JSON data more readable or compact, depending on the user's needs.

Recommended for

    This tool is recommended for software developers, data analysts, and anyone working with JSON data. It's particularly useful for those who require a quick and easy way to validate or format JSON data online without using more complex software environments.

Analysis of JSON Placeholder

Overall verdict

  • Yes, JSON Placeholder is a good tool for developers looking for a simple and quick solution to test and prototype applications without the need for a backend during early-stage development.

Why this product is good

  • JSON Placeholder is a widely used online fake REST API for testing and prototyping. It provides developers with an easy way to simulate server responses without setting up a backend. This tool is especially useful for front-end developers who need to test their applications with data before an actual API is available. It offers endpoints for typical CRUD operations, making it highly versatile and useful for various testing scenarios.

Recommended for

  • Front-end developers
  • Developers working on prototyping
  • Testing purposes without backend setup
  • Learning and teaching API interactions
  • Quick mock data for demo applications

JSON Formatter & Validator videos

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JSON Placeholder videos

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Albums Json Placeholder - Review 4

More videos:

  • Review - JSON PLACEHOLDER - FAKE API

Category Popularity

0-100% (relative to JSON Formatter & Validator and JSON Placeholder)

JSON Formatter & Validator

JSON Placeholder

Developer Tools
77 77%
Developer Tools
23% 23
Development
48 48%
Development
52% 52
Online Services
0 0%
Online Services
100% 100
Programming Tools
100 100%
Programming Tools
0% 0

User comments

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Social recommendations and mentions

Based on our record, JSON Placeholder should be more popular than JSON Formatter & Validator. It has been mentiond 167 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

JSON Formatter & Validator mentions (37)

  • I Was The Slowest Coder Ever (Here's How I Got Fast)
    And when I'm working with those JSON files and they're broken (happens all the time), this JSON Formatter fixes them quick. No more looking for missing commas forever. - Source: dev.to / 4 months ago
  • Postman Tutorial: A Beginner's Step-by-Step Guide!
    **Note:* Online Post request should have the correct format to ensure that requested data will be created. It is a good practice to use Get first to check the JSON format of the request. You can use tools like https://jsonformatter.curiousconcept.com/. - Source: dev.to / 7 months ago
  • Rest API Testing: How to test Rest APIs properly!
    This can look like this, for example. Postman shows you errors in the JSON structure directly. However, you can test it more precisely with this JSON validator. - Source: dev.to / over 1 year ago
  • Homebridge failed to load Config.schema.json
    Did you already validate your json with: JSON VALIDATOR? Source: over 2 years ago
  • 5 useful JSON tools to improve your productivity
    As we've seen in this article, there are many different tools available to help us work with JSON data. From visualizing and exploring data with JSON Crack, formatting it with JSON Formatter & Validator, converting it to other formats like CSV with Konklone.io, and validating it against a schema with JSON Schema — these tools can help make working with JSON data much easier and more efficient. - Source: dev.to / over 2 years ago
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JSON Placeholder mentions (167)

  • Building a Production-Ready Todo List with Kotlin & Jetpack Compose: Modern Android Architecture & Testing
    Class KtorTodoRepository( private val client: HttpClient, private val baseUrl: String = "https://jsonplaceholder.typicode.com" ): TodoRepository { override suspend fun fetchTodosPage(start: Int, limit: Int): List { val url = "$baseUrl/todos?_start=$start&_limit=$limit" return client.get(url).body() // Auto-deserialization magic! } companion object { fun... - Source: dev.to / 21 days ago
  • Master API Load Testing with Artillery.io: Your APIs Under Fire 🔥
    Config: target: "https://jsonplaceholder.typicode.com" phases: - duration: 60 arrivalRate: 5 name: "Warm up" - duration: 120 arrivalRate: 20 name: "Sustained load" - duration: 60 arrivalRate: 50 name: "Peak traffic" Scenarios: - name: "Get posts" weight: 70 flow: - get: url: "/posts" - think: 2 - get: url:... - Source: dev.to / 24 days ago
  • Mastering React Native with TypeScript: From Basics to Brilliance - Part 3
    Import React, { useEffect, useState } from 'react'; Import { View, Text, Button, FlatList, ActivityIndicator } from 'react-native'; Import axios from 'axios'; Import { NativeStackScreenProps } from '@react-navigation/native-stack'; Import { RootStackParamList } from '../navigation/RootNavigator'; Type Props = NativeStackScreenProps; Interface User { id: number; name: string; } Const HomeScreen: React.FC =... - Source: dev.to / 2 months ago
  • Top 10 JavaScript Libraries and Tools You Can’t Ignore in 2025
    JavaScript continues to dominate web development in 2025, powering dynamic, scalable, and interactive applications. With an ever-evolving ecosystem, developers need tools and libraries that streamline workflows, enhance code quality, and boost performance. This article highlights 10 must-know JavaScript libraries and tools—Lodash, Axios, Day.js, D3.js, Zustand, Vite, ESLint, Prettier, Chart.js, and React Hook... - Source: dev.to / 2 months ago
  • I-Powered API Testing in Minutes using Keploy Chrome Extension 🚀
    JSONPlaceholder A classic test API that simulates posts, comments, users, etc. - Source: dev.to / 3 months ago
View more

What are some alternatives?

When comparing JSON Formatter & Validator and JSON Placeholder, you can also consider the following products

JSONFormatter.org - Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON

JSON Server - Get a full fake REST API with zero coding in less than 30 seconds. For front-end developers who need a quick back-end for prototyping and mocking

JSONLint - JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.

Mockae - The most flexible way to mock REST APIs with Lua code execution

JSON Editor Online - View, edit and format JSON online

ReqRes - A hosted REST-API ready to respond to your AJAX requests.

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