Dev tools · alternatives · 2026

24 alternatives to WebPageTest

new look | Test. Optimize. Repeat.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. WebPageTest launched in 2021; newer entries below may have overtaken it.

1
I made tool that let's you see everything about any website▲411
Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)
2024 · v1.web-check.xyz · its alternatives →
2
Time travel debugger for web development▲681
Automated Penetration Testing for AI-Built Apps
2021 · replay.io · its alternatives →
3
SEO Speed Test▲513
Google & ChatGPT ignore slow pages, check if yours is fast!
2025 · seospeedtest.com · its alternatives →
4
Retest▲116
Cross device website testing made simple.
2019 · retest.app · its alternatives →
5
AbTest.io▲122
A free url shortener with A/B testing features
2017 · cbsplit.com · its alternatives →
6
WebPage Test▲8
Website performance & optimisation test
2016 · webpagetest.org · its alternatives →
7
Passmarked▲275
Simple, all-in-one test to check the quality of your website
2018 · passmarked.com · its alternatives →
8
PageTest.AI▲147
Smarter website content testing with AI
2025 · pagetest.ai · its alternatives →
9
LambdaTest Accessibility Testing Suite▲354
Ensure web inclusivity & compliance with just a few clicks.
2025 · testmuai.com · its alternatives →
10
LambdaTest▲127
Ensure your web-apps work seamlessly across all browsers.
2018 · testmuai.com · its alternatives →
11AW
A website speed test tool to compare uBlock Origin with plain Chrome▲192
2019 · webtest.app · its alternatives →
12
Web Load Speed Test▲311
Test your website load speed from 6 locations at once
2017 · its alternatives →
13
Amplitude Web Experimentation▲211
Maximize conversions with no-code A/B testing and analytics
2024 · amplitude.com · its alternatives →
14
PageTest▲20
Website Testing, Monitoring with AI
2025 · pagetest.in · its alternatives →
15
HTML5 Speedtest by Ookla▲282
The world’s most trusted internet speedtest
2016 · beta.speedtest.net · its alternatives →
16
Page Replica – Tool for Web Scraping, Prerendering, and SEO Boost▲135
Page Replica – Tool for Web Scraping, Prerendering, and SEO Boost - Page-Replica/page-replica
2024 · github.com · its alternatives →
17
Checkbot for Chrome Beta▲229
Check the SEO, speed & security of 100s of pages in a click!
2018 · checkbot.io · its alternatives →
18
WebLens▲178
AI powered A/B testing ideas for your website
2024 · weblens.ai · its alternatives →
19
Preflight 2.0▲127
Automated UI testing for your Websites & Web Apps
2020 · preflight.com · its alternatives →
20
WebTestIt▲101
A free lightweight IDE optimized for building UI web tests.
2020 · sencha.com · its alternatives →
21
OnPage Champ▲107
Webiste tracking and on-page SEO A/B testing tool
2020 · its alternatives →
22
Checkbot for Chrome – web crawler that tests for web best practices▲83
Checkbot finds SEO, speed & security problems before your website visitors do. Tests for broken links, duplicate content, invalid HTML/CSS/JavaScript, insecure pages & more. Test 100s of pages at once including local sites to keep on top of problems & stop critical issues going live.
2018 · checkbot.io · its alternatives →
23
F19n Obtrusive Livetest▲82
Frontend Performance Analysis Tool for Chrome
2018 · github.com · its alternatives →
24
Visual Website Optimizer▲86
A/B Testing tool (a brand new version)
2014 · vwo.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →