Software Alternatives, Accelerators & Startups

HTML5test VS Vivaldi

Compare HTML5test VS Vivaldi and see what are their differences

HTML5test logo HTML5test

HTML5test is a platform that assigns you a score based on how well your browser follows the requirements of the HTML5 standard.

Vivaldi logo Vivaldi

Vivaldi is a free, fast web browser designed for power-users. You decide how you browse. Download Vivaldi's fully customisable browser now and browse your way.
  • HTML5test Landing page
    Landing page //
    2023-09-05
  • Vivaldi Landing page
    Landing page //
    2022-06-12

HTML5test features and specs

  • Comprehensive Assessment
    HTML5test provides a detailed evaluation of a web browser's support for HTML5 standards, covering a wide range of features.
  • User-Friendly Interface
    The interface is intuitive and easy to use, allowing users to quickly obtain results about their browser's capabilities.
  • Cross-Browser Comparison
    It allows users to compare scores between different browsers, facilitating informed decisions about which browser to use.
  • Regular Updates
    The site is updated regularly to incorporate the latest HTML standards and browser versions, ensuring relevant test results.

Possible disadvantages of HTML5test

  • Focus on Quantitative Score
    HTML5test focuses on a numeric score that might oversimplify the complexities of feature support and real-world performance.
  • Lack of Contextual Information
    The site does not provide detailed explanations about how missing features might impact user experience or web development.
  • Not Comprehensive for All Users
    While HTML5test is good for basic assessment, it might not be sufficient for advanced developers looking for in-depth analysis of browser capabilities.

Vivaldi features and specs

  • Customization
    Vivaldi offers extensive customization options, allowing users to tweak the browser's appearance and functionality extensively. Users can adjust themes, modify the interface, and use custom shortcuts.
  • User Interface
    The user interface is highly flexible and can be tailored to individual preferences. For instance, users can reposition tabs, split screens, and even stack tabs for better organization.
  • Privacy and Security
    Vivaldi focuses on privacy, providing built-in features such as an ad blocker and tracker blocker. The browser does not track or profile its users.
  • Performance
    Vivaldi is generally snappy and capable of handling a large number of open tabs without significant slowdowns. It is built on Chromium, which provides a stable and quick browsing experience.
  • Built-in Tools
    Vivaldi includes a range of built-in tools like a notes manager, screen captures, and customizable web panels that improve productivity without needing extra extensions.

Possible disadvantages of Vivaldi

  • Complexity
    The plethora of customization options can be overwhelming for new users. The interface may appear cluttered compared to simpler browsers if not configured properly.
  • Resource Usage
    Vivaldi can be more resource-intensive compared to other browsers due to its additional features and customization capabilities. This may lead to higher memory usage.
  • Extension Compatibility
    While Vivaldi supports Chrome extensions, some may not perform as expected due to the browser's unique features and customizations.
  • Learning Curve
    Users coming from more straightforward browsers might need some time to adapt to Vivaldi's extensive features and customization options.
  • Frequent Updates
    While frequent updates can be seen as a positive, they could also be viewed as a nuisance to users who prefer a more stable and less frequently changing browser experience.

HTML5test videos

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Vivaldi videos

Vivaldi Is Awesome: Ditch Chrome | Full Vivaldi Tutorial 2018

More videos:

  • Review - Brave vs Vivaldi - Which is Better?
  • Review - Opera vs Vivaldi vs Brave | The Web Browser Comparison

Category Popularity

0-100% (relative to HTML5test and Vivaldi)
Online Services
100 100%
0% 0
Web Browsers
3 3%
97% 97
Website Testing
100 100%
0% 0
Security & Privacy
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare HTML5test and Vivaldi

HTML5test Reviews

We have no reviews of HTML5test yet.
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Vivaldi Reviews

The 7 best web browsers in 2025
And there's plenty more to like about Vivaldi. Its unique tab management tool allows you to stack multiple tab rows on top of each other, so you can group certain websites to clear clutter and make more room on your main tab row. On the sidebar, you can similarly pin panels for quick access to anything, like your notes, reading list, messaging websites, and browsing history.
Source: zapier.com
Brave Alternative - 8 Privacy-Focused and Reliable Options
Compared to Brave, Vivaldi lacks privacy features, but the huge extension support compensates for that. In my experience, both Brave and Vivaldi offer the same browsing speed, and the system impact was also equal.
Source: mspoweruser.com
The Best RSS Feed Readers for Streamlining the Internet
Vivaldi's RSS reader is new, and features are somewhat limited. For example, it doesn't handle some of the extras that other services do, like newsletters and Facebook pages. If you just want a simple reader to subscribe to a few feeds and you don't need a mobile client or all the bells and whistles, this is a great choice. Vivaldi's RSS reader is free and built-in to the...
Source: www.wired.com
Top browsers: features, comparison and stats (2022)
Vivaldi is a web browser, targeted to technical profiles, released in 2016 by Vivaldi Technologies. It is also based on Google’s free and open source software project, Chromium, but it includes proprietary modifications for further features. As of March 2022, the Vivaldi browser has more than 2.3 million active users.
6 Best Browser Alternatives to Google Chrome
Combine tab stacking with strong privacy measures, and it’s easy to see why Vivaldi is one of the most beloved alternative web browsers. On the subject of privacy, Vivaldi doesn’t profile, track, or sell your data as you browse the web. The browser can’t view the sites you visit, what you download, or what you are searching for. Moreover, there is a capable built-in ad...
Source: gizmodo.com

Social recommendations and mentions

Based on our record, Vivaldi should be more popular than HTML5test. It has been mentiond 159 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.

HTML5test mentions (58)

  • Ask HN: Kindle Browser Specs?
    Take your Kindle and visit https://html5test.com/ and that should give you a good idea. Spoiler: it scores pretty low but supports JavaScript, which is surprising. PS: You could have gotten this answered more quickly by Googling. - Source: Hacker News / 3 months ago
  • Some questions about RAM, BT and Firefox
    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: over 1 year ago
  • widevine problem?
    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: over 1 year ago
  • is there a way to get surround sound working on firefox?
    You can use this website also https://html5test.com is really helpful with more datails. Source: over 1 year ago
  • H265 Browser compatibility
    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: over 1 year ago
View more

Vivaldi mentions (159)

  • Wikipedia and Stack Overflow Search
    Hi, https://mach3db.com is now a frontend to search Wikipedia and Stack Overflow article titles. Right now I only have simple substring search to reduce load on my server. The results are clickable links that point to lightweight versions of Wikipedia and Stack Overflow articles. Please give it a try! It works best in the Vivaldi browser: https://vivaldi.com/ Stack Overflow results can also be filtered by minimum... - Source: Hacker News / 5 months ago
  • Why Vivaldi Might Be the Browser You've Been Waiting For
    Download Vivaldi today and start experiencing the web on your terms: https://vivaldi.com/. - Source: dev.to / 7 months ago
  • Is there is any browser which allows us to create shortcuts on the websites or is there is any add on which allow you to create shortcut for the website?
    Thank You for clarifying it, yes I am exactly looking for keyboard shortcut, I have heard about Vivaldi browser that it is specially designed for users which prefer keyboard shortcut keys and advanced users, but I failed to use as I intended. If you have any idea or suggestion of how to do this specific thing which I am looking for, then do let me know. Thank You. Source: over 1 year ago
  • Why Bother with uBlock Being Blocked in Chrome? Time to Switch to Firefox
    For those who can't switch away from Chrome extensions yet I recommend trying Vivaldi Made by Opera browser Founder https://vivaldi.com. - Source: Hacker News / over 1 year ago
  • Links unreachable with tab key despite having href made me learn about Spatial Navigation
    What's that? A browser bug? A browser misconfiguration? Should I stop using an alternative Chromium build like Vivaldi? - Source: dev.to / over 1 year ago
View more

What are some alternatives?

When comparing HTML5test and Vivaldi, you can also consider the following products

Can I use - Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers.

Brave - Fast and secure, ad and tracker blocking browser.

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.

Mozilla Firefox - Get the browsers that put your privacy first — and always have

webcheck.me - webcheck.me Free online website scanner. Checks security, seo, performance and mail problems.

Google Chrome - Google Chrome is a fast, secure, and free web browser, built for the modern web. Give it a try on your desktop today.