W3C Markup Validation Service
HTML Validator
PageSpeed Insights
Rocket Validator
GTmetrix
CodePen
mailmouse
Meta Forensics
JSON Placeholder
JSON Server
Mockae
ReqRes
mocki Fake JSON API
Next.js
FakeJSON
React
W3C Markup Validation ServiceBased on our record, JSON Placeholder should be more popular than W3C Markup Validation Service. 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.
It is a very common cross-browser compatibility issue and has a simple solution. One can use code validating tools for HTML and CSS depending on their requirements. These validators are powered by W3C. - Source: dev.to / 3 months ago
How to use HTML Validation service 👇 Step 1: Access the HTML validator ● Open the HTML validator in your web browser i.e go to https://validator.w3.org/. - Source: dev.to / 9 months ago
Looking at the html of HN's pages, can't blame them really. Running though https://validator.w3.org/ , the result is abysmal. At this rate, if web browsers started requiring sites to output HTML that is somewhere in the realm of normalcy, HN would sooner shut down than consider ever updating. - Source: Hacker News / over 1 year ago
Whether you’re a frontend developer, lead, or manager, reconsider your expectations and practices if you haven’t yet chosen not to ship erroneous HTML. The more of us decide to talk about using actual HTML on our sites and in our apps, and lead by example, the better for our users and clients, and the better for our craft and profession. On the engineering side of web development, it’s HTML first—if it is HTML. - Source: dev.to / over 1 year ago
Validate Your Code Include tools like W3C code validation service and CSS validator to ensure your code meets web standards. - Source: dev.to / over 1 year ago
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
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
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
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
JSONPlaceholder A classic test API that simulates posts, comments, users, etc. - Source: dev.to / 3 months ago
HTML Validator - HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla.
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
PageSpeed Insights - PageSpeed is addon for ...
Mockae - The most flexible way to mock REST APIs with Lua code execution
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.
ReqRes - A hosted REST-API ready to respond to your AJAX requests.