swap_horiz Am I Responsive? Alternatives

1

React

React, when used primarily for web development, remains the industry benchmark for building complex, scalable user inter...

Modern Responsive Popular Javascript

9.6 Brilliant

2

BuiltWith

BuiltWith analyzes websites to reveal the technology stack behind them. It identifies software like content management s...

SAAS Competitive WebPageTest Tech Profiler

8.9 Great

3

SpeedCurve

SpeedCurve is a web performance monitoring tool designed to analyze website speed and identify areas for improvement. It...

Performance Monitoring Web Synthetic

8.8 Great

4

Prometheus Blackbox Exporter

The Prometheus Blackbox Exporter is an open source HTTP service designed to gather deep performance data from web applic...

Monitoring Open Source Uptime Prometheus

8.7 Great

5

Downdetector

Downdetector is a public platform utilizing crowdsourced data to track online service disruptions. Users report experien...

Public Outage Crowdsourced Uptime

8.4 Great

6

Robot Framework

Robot Framework is an open source automation tool designed for creating robust tests. It utilizes a keyword-driven metho...

Open Source Python Keyword Driven Test Automation

8.4 Great

7

Grafana Pyroscope

Pyroscope is an open source profiling tool built for Grafana. It uses continuous profiling based on web performance data...

Performance Open Source Observability WebPageTest

8.4 Great

8

Ionic Framework

Ionic Framework provides a comprehensive toolkit for developing hybrid mobile applications. It utilizes web standards –...

Mobile Cross Platform Hybrid Frontend

8.4 Great

9

Quasar Framework

Quasar Framework is a Vue.js framework designed to build modern applications across multiple platforms. It allows develo...

Mobile Desktop Vue Spa

8.2 Great

10

Rainforest QA

Rainforest QA is an open-source browser extension and online tool that analyzes website performance by simulating real u...

Automation SAAS No Code WebPageTest

7.7 Good

11

Framework7

Framework7 is a free and open-source mobile UI framework used for developing desktop, mobile, and web applications with...

Mobile Javascript Hybrid UI

7.5 Good

12

Treo Site Speed

Treo Site Speed is a tool that analyzes website loading times by measuring various factors like First Contentful Paint,...

Performance Monitoring Web WebPageTest

7.4 Good

13

NodePing

NodePing is a free online tool that measures the responsiveness of a website by simulating a user’s connection and timin...

Monitoring SAAS Synthetic Uptime

7.4 Good

14

Onsen UI

Onsen UI is an open-source framework designed for developing hybrid mobile applications and progressive web apps (PWAs)...

Mobile Javascript Hybrid UI

7.3 Good

15

ARC Toolkit

ARC Toolkit is a free, open-source web performance testing tool that analyzes website speed and identifies specific bott...

Accessibility Browser Extension WebPageTest Wcag

7.2 Good

16

Keynote Systems

Keynote Systems is a website performance analysis tool that utilizes real-time data to identify and diagnose issues impa...

Mobile Monitoring Legacy Enterprise

6.9 Fair

17

webhint

WebHint is a free online tool that analyzes website code to identify potential performance issues related to JavaScript,...

Accessibility Performance Open Source Microsoft

6.9 Fair

18

nGrinder

nGrinder is an open-source, cross-platform tool used to measure and diagnose website performance by simulating multiple...

Performance Open Source Load Testing Groovy

6.9 Fair

19

Silktide

Silktide is an automated website optimization platform that analyzes and identifies critical performance bottlenecks wit...

Accessibility SAAS Audit WebPageTest

6.9 Fair

20

Dotcom-Monitor

Dotcom-Monitor is a website performance monitoring service that analyzes the loading speed and technical health of websi...

Monitoring Enterprise Synthetic Uptime

6.6 Fair