swap_horiz Sauce Labs Alternatives

1

Locust

Locust is a powerful open-source load testing tool written in Python. It's known for its flexibility, ease of use, and a...

Performance Open Source Load Testing Python

9.5 Brilliant

2

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

3

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

4

PageSpeed Insights API

The PageSpeed Insights API provides programmatic access to detailed performance metrics and recommendations for optimizi...

Google Performance Automation Lighthouse

8.9 Great

5

Lighthouse CI

Lighthouse CI is an open source command-line tool designed to automate website performance testing. It utilizes Google's...

Google Performance Automation Open Source

8.9 Great

6

Ahrefs Site Audit

The Ahrefs Site Audit is a web crawler that assesses website health for search engine optimization. It identifies techni...

Cloud Performance SEO Audit SAAS

8.9 Great

7

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

8

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

9

Oh Dear

Oh Dear is a website analysis tool that assesses web performance and identifies issues affecting user experience. It sim...

Performance Monitoring Uptime Alerts

8.8 Great

10

HTTP Archive

The HTTP Archive compiles a vast dataset of real-world HTTP responses from websites across the internet. This open resou...

Performance WebPageTest Web Vitals Dataset

8.8 Great

11

Catchpoint

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

Performance Enterprise Network Web

8.7 Great

12

Sitespeed.io

Sitespeed.io is an open-source tool designed for analyzing website performance. It provides data on key metrics such as...

Performance Monitoring Open Source Self Hosted

8.7 Great

13

OpenText LoadRunner

OpenText LoadRunner is a comprehensive load testing tool designed for enterprise environments. It simulates numerous use...

Performance Legacy Enterprise Stress Test

8.7 Great

14

Chromatic

Chromatic is a web auditing tool designed for developers and designers seeking to improve website performance. It uses v...

SAAS Visual Testing Storybook Regression

8.7 Great

15

Sentry Performance Monitoring

Sentry Performance Monitoring is a real-time application performance monitoring (APM) tool that tracks key metrics like...

Performance Developer Website Error Tracking

8.6 Great

16

kind

Kind is a tool facilitating local container development and testing. It allows developers to run Docker containers local...

Docker Development Testing CI

8.6 Great

17

LambdaTest

LambdaTest provides cloud-based cross-browser and responsive web testing. It simulates website behavior on numerous devi...

Cloud SAAS Responsive Testing

8.3 Great

18

BrowserStack SpeedLab

BrowserStack SpeedLab provides detailed website performance analysis by simulating various network conditions and geogra...

Performance Web Cross Browser WebPageTest

7.4 Good

19

Browserling

Browserling is a cross-browser testing tool that simulates real user environments by offering pre-configured virtual mac...

Cloud Interactive Testing Live

6.8 Fair

20

Lost Pixel

LostPixel is an open-source tool that analyzes website performance by measuring critical metrics like First Contentful P...

Open Source Testing WebPageTest CI

6.5 Fair