Dev tools · alternatives · 2026

24 alternatives to HTML5TEST

Indicates how well your browser supports the HTML5 standards

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. HTML5TEST launched in 2017; newer entries below may have overtaken it.

1
HTML5 Speedtest by Ookla▲282
The world’s most trusted internet speedtest
2016 · beta.speedtest.net · its alternatives →
2
Browserling▲242
Live interactive cross-browser testing from your browser.
2015 · browserling.com · its alternatives →
3
LambdaTest Accessibility Testing Suite▲354
Ensure web inclusivity & compliance with just a few clicks.
2025 · testmuai.com · its alternatives →
4
A guide to all HTML5 elements and attributes▲728
A free guide to all HTML elements and attributes.
2017 · htmlreference.io · its alternatives →
5
Browser Specs▲60
Tests your browser specs on screen and email to support desk
2016 · its alternatives →
6
Test Cafe▲92
Automated browser testing
2016 · devexpress.github.io · its alternatives →
7
Browserbite▲135
Automatic cross browser layout testing
2015 · its alternatives →
8
LambdaTest▲127
Ensure your web-apps work seamlessly across all browsers.
2018 · testmuai.com · its alternatives →
9
LambdaTest Chrome Extension▲191
Cross browser testing by taking full-page screenshots
2018 · testmuai.com · its alternatives →
10
BrowserTap▲70
Cloud-based cross browser testing (pre-launch)
2014 · its alternatives →
11
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 →
12GP
Get pinged when standards hit 90% browser support▲199
2015 · frontendhq.com · its alternatives →
13
Your Browser Is▲153
Check your customer's web browser
2015 · yourbrowser.is · its alternatives →
14
WebPage Test▲8
Website performance & optimisation test
2016 · webpagetest.org · its alternatives →
15
LT Browser▲200
Next-gen browser to build, test & debug mobile websites
2021 · testmuai.com · its alternatives →
16
Comparium▲108
Cross-browser website visual validation tool
2020 · remoteaccesspcdesktop.com · its alternatives →
17
HTML 5 UP▲225
Makes spiffy HTML5 site templates
2014 · html5up.net · its alternatives →
18
Quick Preview▲113
Copy/paste and test your HTML code in real-time.
2024 · quickpreview.dev · its alternatives →
19
Simply Testable▲105
Free one-click full-site frontend web testing
2014 · its alternatives →
20
WebLens▲178
AI powered A/B testing ideas for your website
2024 · weblens.ai · its alternatives →
21
Retest▲116
Cross device website testing made simple.
2019 · retest.app · its alternatives →
22
What's my browser?▲121
What browser am I using? What version is my browser? WhatsMyBrowser.org is the easiest way to find information about your browser, and share it to your designer, developer, or support rep.
2014 · whatsmybrowser.org · its alternatives →
23
WebTestIt▲101
A free lightweight IDE optimized for building UI web tests.
2020 · sencha.com · its alternatives →
24
Check Browsers Support▲9
Developer Tools, Web Development
2020 · 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 →