Based on our record, HTML5test seems to be more popular. It has been mentiond 57 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I just don't know what else I can do. I compared Chromium and Firefox in html5test.com, got same result. All browsers says they doesn't support H.265. I turned off HW acceleration, nothing changes. I installed ffmpeg-libs and other codecs from Fedora wiki. Nothing changes. Videos are same vp9 in browsers. I spent all day googling but nothing helpful. Source: 5 months ago
What does https://html5test.com/ say for h.264, VP8, VP9 and Theora support? What does it say for aac, Opus, Vorbis and mp3 support? Source: 5 months ago
You can use this website also https://html5test.com is really helpful with more datails. Source: 6 months ago
If I go on html5test.com, no matter which browser I use, H265 support is not enabled and I couldn't find any article online that explains why -- what am I missing here? Source: 8 months ago
When I install Opera via flatpak and do html 5 test it says h264 is not supported, what can I do? Source: 12 months ago
The Acid3 Test - The Acid3 Test is an online test page developed by the Web Standards Project to help everyone check how compliant a specific browser is with different web standards like JavaScript and Document Object Model.
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
Can I use - Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers.
CrossBrowserTesting - Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.
IETester - ietester is an application that allows to test on multiple ie versions at the same time in the same application
Browsershots - Browsershots makes screenshots of your web design in different browsers.