swap_horiz Yellow Lab Tools Alternatives

1

Google Lighthouse

Google Lighthouse is a free, open-source web auditing tool developed by Google. It analyzes websites to assess their per...

Google Performance Open Source Audit

9.4 Excellent

2

Chrome DevTools Performance Panel

Chrome DevTools' Performance Panel is a browser-based tool used to analyze web page loading processes. It records detail...

Performance Browser Audit Chrome

9.2 Excellent

3

Web Page Analyzer

Web Page Analyzer is a tool for assessing website loading speed and performance. It measures key factors such as page we...

Legacy Audit Web WebPageTest

9.2 Excellent

4

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

5

WebPageTest API

The WebPageTest API provides developers with programmatic access to detailed web performance metrics generated by the We...

Performance Automation Web WebPageTest

8.8 Great

6

Catchpoint

Catchpoint provides comprehensive network performance monitoring for websites and web applications. It measures response...

Performance Enterprise Network Web

8.7 Great

7

Boomerang.js

Boomerang.js is an open source JavaScript library designed for web performance analysis. It simulates a user’s browsing...

Open Source Javascript Library Akamai

8.6 Great

8

Pingdom Website Speed Test

The Pingdom Website Speed Test assesses a website’s loading speed from multiple global servers and browsers. It measures...

Performance Monitoring Web Solarwinds

8.5 Great

9

Load Impact / k6

k6 is an open source load testing tool designed for developers and DevOps engineers. It uses JavaScript scripts to simul...

Performance Open Source Load Testing Web

8.5 Great

10

Bundlephobia

Bundlephobia is a web performance tool designed to analyze website asset sizes. It identifies large JavaScript bundles a...

Developer Javascript Web Front End

8.5 Great

11

Site24x7 Website Monitoring

Site24x7 Website Monitoring is a service that continuously monitors websites for performance problems. It tracks key met...

Performance Monitoring Zoho Web

8.3 Great

12

HubSpot Website Grader

The HubSpot Website Grader is a free tool that assesses website performance. It utilizes Google PageSpeed Insights data...

Free Performance SEO Marketing

8.2 Great

13

Lighthouse Metrics

Lighthouse Metrics is a monitoring tool designed to assess web page speed and performance. It uses Lighthouse, an open-s...

Page Speed Lighthouse Audit Web

8.2 Great

14

Unlighthouse

Unlighthouse is an open source command-line tool designed to assess website performance. It simulates browser behavior t...

Performance Lighthouse Open Source CLI

8.1 Great

15

web.dev Measure

Web.dev Measure is a free, open-source tool that analyzes website performance by simulating real user connections and re...

Google Legacy Lighthouse Audit

7.9 Good

16

Dareboost

Dareboost is a website performance monitoring tool that analyzes webpage load times and identifies specific bottlenecks...

Performance Monitoring Audit Web

7.6 Good

17

Geekflare Website Audit

Geekflare’s Website Audit utilizes automated tools and human analysis to assess a website's performance based on metrics...

Performance Audit Web WebPageTest

6.4 Fair

18

Funkify

Funkify is a free, open-source Google Chrome extension that analyzes website loading speed by measuring various factors...

Accessibility Simulator Disability Extension

5.6 Mediocre

19

PerfPerfPerf Speed Test

PerfPerfPerf Speed Test is a free online tool that analyzes website loading performance by measuring key metrics like Fi...

Free Performance Audit Web

5.3 Mediocre

20

Taurus

Taurus is a JavaScript-based page speed optimization tool that analyzes websites to identify and prioritize opportunitie...

Automation Open Source WebPageTest Load Test

5.3 Mediocre