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JSON Placeholder VS Rocket Validator

Compare JSON Placeholder VS Rocket Validator and see what are their differences

ScreenshotMAX
The all-in-one Screenshot API for developers: capture websites, generate PDFs, record videos, and automate it all with powerful, scalable infrastructure. No browser setup, no hassle. Just clean results, fast. featured
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Contents:
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  3. » Reviews
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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.

Rocket Validator logo Rocket Validator

Site-wide Accessibility and HTML validation made easy. With a single click, Rocket Validator will check thousands of web pages on your site for Accessibility and HTML conformance, producing a detailed, actionable report on seconds.
  • JSON Placeholder Landing page
    Landing page //
    2022-01-17
  • Rocket Validator Landing page
    Landing page //
    2020-09-16

How much time and effort are you investing in checking your websites?

Let our web spider do the hard work for you.

Automatic link crawling.

Up to 5,000 web pages per report. Just enter a starting URL and we'll find the pages on your site. XML sitemaps also supported.

Accessibility / HTML automated checks.

Each page is checked using the latest versions of Deque Axe Core and W3C Validator. Get results in seconds.

Scheduled reports.

Define daily, weekly or monthly automatic reports and get the results delivered to your email. You can also use webhooks to trigger site checks after every deploy.

Muting rules.

Rocket Validator lets you selectively mute issues that you don't plan to fix - for example when it's caused by 3rd party software.

Evolution charts.

Track the evolution of your site quality over time.

Badges.

Show the current status of your sites easily with our embeddable badges.

Integration API.

Easy to integrate into your existing projects and dashboards via our JSON API.

JSON Placeholder

Website
jsonplaceholder.typicode.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Edit details

Rocket Validator

Website
rocketvalidator.com
Pricing URL
Official Rocket Validator Pricing
$ Details
paid Free Trial $36.0 / Monthly (25,000 HTML checks/month, 1,000 docs/report, 5 requests/second)
Platforms
Browser REST API Ruby
Release Date
2016 August
Edit details

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.

Rocket Validator features and specs

  • Accessibility Checking
    Automatic checks of web pages using Deque Axe Core
  • HTML Checking
    Automatic checks of web pages using W3C Validator
  • Link Crawling
    Automatic discovery of web pages within a site by web spider
  • Scheduler
    Scheduled reports can be run automatically on a daily, weekly or monthly basis
  • Webhooks
    Reports can be triggered by a deploy hook
  • Muting
    Selectively mute the issues you don't plan to fix by defining a matching rule
  • API
    REST JSON API to easily integrate site validation into your projects

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 Placeholder videos

+ Add

Albums Json Placeholder - Review 4

More videos:

  • Review - JSON PLACEHOLDER - FAKE API

Rocket Validator videos

+ Add

Live Summary Report

Category Popularity

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

JSON Placeholder

Rocket Validator

Development
100 100%
Development
0% 0
SEO
0 0%
SEO
100% 100
Online Services
100 100%
Online Services
0% 0
SEO Tools
0 0%
SEO Tools
100% 100

User comments

Share your experience with using JSON Placeholder and Rocket Validator. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, JSON Placeholder seems to be more popular. 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 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

Rocket Validator mentions (0)

We have not tracked any mentions of Rocket Validator yet. Tracking of Rocket Validator recommendations started around Mar 2021.

What are some alternatives?

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

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

HTML Validator - HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla.

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

SEO Checker - Website analyzer and SEO audit tool.

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

W3C Markup Validation Service - Validates HTML markup of web pages, one at a time.

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