swap_horiz Loadster Alternatives

1

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

2

Blackfire.io

Blackfire.io is an online web performance analysis tool designed for developers and site owners. It uses real browser si...

Performance PHP Apm Profiling

8.4 Great

3

OctoPerf

OctoPerf is an automated testing tool that measures the performance of websites and web applications by simulating real...

Performance SAAS Load Testing Jmeter Cloud

8.1 Great

4

StormForge

StormForge is an open-source tool that analyzes website performance by simulating real browser connections to identify a...

Performance Optimization SAAS Load Testing

8.0 Great

5

Speedscale

Speedscale is an open-source tool that analyzes website performance by measuring key metrics like First Contentful Paint...

Performance API Load Testing Kubernetes

7.9 Good

6

StatusGator

StatusGator is a free online tool that analyzes website loading speed across multiple global servers and reports the ave...

Monitoring SAAS Aggregator Status Page

7.7 Good

7

Percy

Percy is a web performance monitoring tool designed to identify issues impacting website speed and user experience. It s...

SAAS Visual Testing Regression WebPageTest

7.7 Good

8

Test My Site (Think with Google)

Google's Test My Site tool assesses a website's loading speed across mobile devices. It provides detailed reports pinpoi...

Google Performance Mobile Legacy

7.6 Good

9

Uptrends Website Speed Test

Uptrends Website Speed Test is an online tool that measures the loading time and performance of websites by analyzing va...

Performance Monitoring Web WebPageTest

7.5 Good

10

SpeedVitals

SpeedVitals is a website tool that analyzes webpage loading speed by measuring various metrics like First Contentful Pai...

Performance Web WebPageTest Speed Test

7.4 Good

11

Loadmill

Loadmill is an open-source website speed testing tool that analyzes a webpage’s performance by measuring various metrics...

Cloud Automation No Code API

7.4 Good

12

Tsung

Tsung is an open-source command-line tool that analyzes website performance by simulating browser rendering and measurin...

Open Source Distributed Stress Test WebPageTest

7.3 Good

13

Seobility

Seobility is a website speed testing tool that analyzes a webpage’s performance across multiple metrics like Core Web Vi...

Performance Monitoring SEO Audit Freemium

7.3 Good

14

KeyCDN Website Speed Test

KeyCDN’s Website Speed Test utilizes the WebPageTest platform to measure website loading times across various locations...

Performance CDN Web WebPageTest

7.2 Good

15

Fortio

Fortio is an open-source website speed testing tool that analyzes a webpage’s performance by measuring various metrics l...

Grpc Load Testing CLI Benchmark

7.2 Good

16

Sitechecker

Sitechecker analyzes website loading speed across multiple global locations and browsers, providing detailed reports on...

Monitoring SEO SAAS Audit

7.1 Good

17

Ghost Inspector

Ghost Inspector is a free, open-source browser extension that analyzes website performance by simulating a real mobile d...

Monitoring SAAS Browser Synthetic

7.0 Good

18

Cloudinary Website Speed Test

The Cloudinary Website Speed Test is a web-pagetest tool that analyzes a website’s loading performance by simulating var...

Free Performance Image Analysis Media

6.9 Fair

19

FusionReactor

FusionReactor is an open-source tool that analyzes website performance by simulating real browser behavior and measuring...

Monitoring SAAS Java Apm

6.9 Fair

20

Flood

Flood is a cloud-based load-testing platform associated with Tricentis that supports performance testing with open-sourc...

Cloud Performance Load Testing Stress Test

6.4 Fair