# CSS HTML Validator Reviews 2026. Verified Reviews, Pros & Cons | Capterra
> Is CSS HTML Validator the right Source Code Management solution for you? Explore 26 verified user reviews from people in industries like yours to make a confident choice.
Source: https://www.capterra.com/p/183164/CSS-HTML-Validator/reviews
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CSS HTML Validator
4.8 (26)
Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Learn more](https://www.capterra.com/our-story/)
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Last updated August 24th, 2025
# Reviews of CSS HTML Validator
Ease of use
4.7
Customer Service
4.6
## Showing most helpful reviews
Showing 1-25 of 26 Reviews
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Frequency of Use
Rachel E. H.
Associate Professor
Higher Education
Used the software for: 2+ years
### "A Validation Multi-tool!"
January 18, 2021
5.0
I started with the free version in the late 1990s and upgraded to the Pro version later on when I taught Web design regularly. I continue to recommend it to my students when I find out they are doing any kind of webpage development. I use it to batch validate student websites. I share the generated reports with their grading rubric so they not only know what they did wrong, but how to fix it.
Pros
Easy for novice users. Highly customizable for expert users. Editor and validators are customizable. Excellent technical support. Validates within the editor. Has a batch mode that generates validation information, explanations, and ways to fix code that can be shared with other developers. Intuitive interface. Stays current with published standards. Can clean up code.
Cons
It would be nice to have a code completion feature similar to Visual Studio or Notepad++.
Review Source
DB
David B.
Full Professor, now retired
Higher Education
Used the software for: 2+ years
### "An indispensable tool for production and learning environments"
June 30, 2019
5.0
Based on more than two decades using CSS HTML Validator under Windows and, more recently, under Linux, I recommend it highly, not only to anyone learning web development, but also to experienced developers who pride themselves on clean, standard-compliant code, or whose code is subject to the accessibility requirements of WCAG and Section 508, or who need advanced capabilities for website monitoring. A test run of CSS HTML Validator is possible by taking advantage of the free trial offer.
Pros
In the mid-1990s, I found CSE HTML Validator’s tight integration of syntax checking with an HTML editor very effective, and its recommendations for fixes and best practices were very much like having a mentor. In the following years, CSE HTML Validator evolved into CSS HTML Validator, and its syntax checking and mentoring stayed up-to-date with evolving standards for web development. Throughout this period, I continued to rely on it because of the enormous convenience of its integration of syntax checking with editing HTML, CSS, JavaScript, and PHP. Some syntax checkers require code to be uploaded to an online service, but CSS HTML Validator’s syntax checking is purely local. That means code is kept private, and syntax checking is fast. While the Standard edition is targeted to working with individual web pages, the Professional and Enterprise editions include a batch processor for monitoring and maintaining entire websites. Using the batch processor, I am able to subject a website to an exhaustive analysis, including syntax checking, validation of links, and recommendations for best practices. It can also check WCAG and Section 508 accessibility requirements. CSS HTML Validator may be a Windows application, but I have found that it executes flawlessly on Linux machines using Wine, which enabled me to continue relying on it when I switched from Windows to Linux. A complete technical evaluation of CSS HTML Validator is available on the WineHQ Wine Application Database.
Cons
Because CSS HTML Validator lacks a builtin FTP client, it cannot directly upload web pages to a web site.
Review Source
VR
Verified Reviewer
Owner
Media Production
Used the software for: 6-12 months
### "Great for webmasters"
July 23, 2019
4.0
Pros
I think this software is great. The pro version is the best because it analyzing the entire website and not just individual pages. I’ve used google webmaster tools but I prefer CSS HTML Validator because it really fine tunes the code mistakes i typical mess up on. There’s no builtin FTP client, Which is a bummer but overall it still allows me to clean up errors and make my code on the sites load faster across windows and Linux.
Cons
Besides no FTP, I havnt had any cons about the software.
Review Source
TB
Thomas B.
Programmer
Information Technology and Services
Used the software for: 1-2 years
### "A must-have for web developers"
May 30, 2019
5.0
It's helped me write robust HTML and CSS, and it's helped me learn the reason why certain things should be structured in the way that allows validation.
Pros
The CSS HTML Validator provides a better analysis of HTML than what is provided by the W3C: the Validator provides clear and detailed information not only of the cause of what problems it discovers, but helpful suggestions on how to solve those problems. It then goes beyond that to provide suggestions on what might be done to strengthen the HTML beyond a mere validation fix, including information on accessibility, cross-browser compatibility, and the like. There's also the added bonus of an online forum where questions may be posted, and the author of the software has always been quick to respond to queries, and he has been equally open to suggestions of new features (e.g., when I've discovered quirks of HTML composition that result from the use of certain JavaScript frameworks, the author has worked to ensure that the Validator responds to those quirks with appropriate validations and suggestions for usage). I recommend the Validator highly to everyone who wants to ensure that their HTML and CSS are rock-solid, and therefore a strong foundation for their application and its use.
Cons
If I could choose the default sound that is issued at the end of validation (a triumphant "ta-da!" when everything checks out, a single low "beep" when there's a problem), I'd probably want that. But the program is so highly configurable that there's probably a setting for changing those sounds that I haven't investigated yet. :-)
Review Source
Response from AI Internet Solutions
June 1, 2019
Thank you Thomas! I'm glad that you have found the program very useful. There are sound settings in the Validator Engine Options where you can turn off or change the sounds that play after a validation.
Michael S.
Executive VP/Dir of Marketing
Electrical/Electronic Manufacturing
Used the software for: 2+ years
### "The best HTML and CSS validator, and yes you need one even if you use a content management system"
February 23, 2019
5.0
Has helped immensely in Webpage design--especially before the era of content management systems. Remember, if someone doesn't like the looks of your site, he will switch off in three seconds. Also useful when doing bulk e-mails, using such programs as Atomic Mail Sender. This stuff has to look perfect to even have a chance of being read.
Pros
Does a complete validation of your web page, checking for essentially all possible errors. If you want the best look and functionality of your site's pages, the code has to be correct. Sure...browsers are more forgiving these days, but why take a chance? What's more, by having coding errors exposed, you learn how to design the pages better!
Cons
In some rare cases, the Validator can get too picky. e.g. For MailChimp e-mailing software, certain aspects of generated inline CSS coding are technically wrong, and will actually not render if corrected to the Validator's standards. Note that this is not a problem with the Validator, but with MailChimp. This sort of thing can also occur in WordPress. Thus, the user must be aware of those rare instances when being absolutely correct can be a problem.
Review Source
BL
Bryan L.
Owner
Retail
Used the software for: 2+ years
### "A Powerful Multi-function Editor for Web Documents"
September 15, 2019
5.0
I am very impressed with CSS HTML Validator software. It is a powerful editing tool for HTML, XML, CSS and other forms of web documents. The validator saves a lot of time reviewing code for syntax, nesting errors, and other coding mistakes. You can choose the level of error reporting from critical errors only, or add warnings, link checking, and even suggestions on good style practices and appropriate coding for web crawlers. When validating documents, errors are highlighted in different colors, indicating the severity of the mistake. And the validator allows you to choose to validate with the HTML 5 standard or select earlier, transitional versions. The Validator makes writing code quicker and easier than using a plain text editor. You can choose to have your tags auto-closed, and lines auto-indented to help avoid nesting errors. Spelling and syntax suggestions are available on-the-fly. The editing screen can be split horizontally or vertically between two documents allowing for quick and simple cut-and-paste, or side-by-side comparison of two documents, and the edit screen will hold multiple files open with quick-access tabs allowing you to switch rapidly between documents. Although the Validator is not a WYSIWYG editor, it quickly allows you to check the web display of your document using either an internal browser, or your choice of popular browsers through an external link. The Validator constantly follows your cursor, so help from their on-line syntax database is on
Pros
Even though this software is heavily packed with features, I appreciate the intuitive layout, the ease of use, and the low learning curve; I was up and running very quickly.
Cons
No What-you-see-is-what-you-get capability.
Review Source
AV
Alexander V.
CEO
Information Technology and Services
Used the software for: 2+ years
### "CSS HTML Validator role in a website development cycle"
May 30, 2019
5.0
Pros
CSS HTML Validator makes sure that aqua-calc.com with its more than 800,000 pages runs free of any HTML issues since 2011, providing for quick and reliable way to check any web page in development. Its batch wizard allows to stay on top of any inadvertently introduced errors during a development phase. CSS HTML Validator is a significant part of aqua-calc.com nightly builds, ensuring that search engine bots will not not find any HTML issues within the website. Lastly, but not least, in my experience, CSS HTML Validator provides stellar support, responding promptly and efficiently to any and all questions.
Cons
It takes about 10 hours for CSS HTML validator batch wizard to scan aqua-calc.com, but sheer amount of pages within the website makes it unavoidable.
Review Source
VR
Verified Reviewer
Associate Manager
Accounting
Used the software for: 2+ years
### "Validator with CSS syntax and tag in html for any section and source code is very good"
October 8, 2022
5.0
Pros
Real time validator checks without failure of inline or external CSS
Cons
predefined variables are not very easy to track
Review Source
angela D.
Home health aide
Health, Wellness and Fitness
Used the software for: I used a free trial
### "Very useful and welcome. Program to have"
July 4, 2021
5.0
It was an welcome additioñ that didn't require any effort on my PO art except to download it.
Pros
How easy and simple it was to use just download and it works without any further effort needed from the user.
Cons
It was almost to simple ,like there should have been more to do but there wasn't.
Review Source
Moa C.
Student
Computer Software
Used the software for: 6-12 months
### "CSS HTML validator"
September 22, 2022
5.0
Pros
Seo management link management Source code validation
Cons
UI could be a bit better and SEO management tools couldalso be improved
Review Source
Rinaldo M.
Programmatore di PC - Sistemista di rete
Computer Software
Used the software for: I used a free trial
### "CSS HTML Validator molte cose da rivedere"
September 23, 2024
5.0
La mia esperienza con CSS HTML Validator è negativa, ci sono diversi siti online che offrono lo stesso servizio gratis, rispettando quelle che sono le regole css e non modificando totalmente il file css che sto per validare, cioè se inserisco una classe provata e brevettata con la grafica che risulta responsive su ogni device, non deve alterare l'interfaccia grafica inserendo colori a caso cambiando il sito web da RGB a tinta unica.
Pros
Mi è piaciuto molto di CSS HTML Validator, ti da molte possibilità per non avere errori all'interno del proprio sito web, l'installazione risulta veloce e pesa poco su Windows. Inserendo un codice CSS è validare per la presenza di errori, ti da l'errore che secondo il software da incompatibilità con alcuni device. Ho apprezzato molto il fatto che durante il download ti parte subito il trial del programma senza confermare e-mail.
Cons
Di CSS HTML Validator non mi è piaciuta molto la grafica molto spartana, il programma scaricato è in inglese, quando ti corregge il file css che secondo lui un tipo di classe css, quando inserisci la stringa validata da lui da problemi all'interno del proprio sito web, in locale risulta spaginato ecc... da risolvere!! Per quanto riguarda i link esterni, mi ha rimosso un link che ho validato che secondo lui era obsoleto, mi ha completamente tolto i font rendendo il testo ingrandito!
Review Source
Response from AI Internet Solutions
September 26, 2024
We'd be happy to review the issues you mentioned if you could provide detailed information and sample HTML and CSS to reproduce the issues. Also, please note that the program does not change or modify your documents by itself, it only checks them and gives you feedback and suggestions (unless you use something like the HTML Tidy tool which is clearly designed to change/tidy a document).
Fabrizio M.
Ethical hacking
Internet
Used the software for: 1-2 years
### "Validatore HTML e CSS ottimo strumento "
December 24, 2023
5.0
La mia esperienza con CSS HTML VALIDATOR è positiva fa il suo lavoro molto bene, in futuro spero migliori la parte dell'ottimizzazione dei fogli .css, consiglio vivamente di utilizzare CSS HTML Validator per alleggerire il vostro sito web
Pros
Mi è piaciuto molto il validatore HTML CSS perchè ti aiuta molto negli errori più comuni, stringhe di codice non utilizzato lui le corregge perchè non richiamate da nessun altra classe, collegamenti https di librerire .css di terze parti molto pesanti, aiuta molto alleggerendo così notevolmente il sito web con prestazioni ottime, ottimizza quello che è il .css integrato direttamente nel foglio html, facendo sì di eliminare i commenti inutili e di inserire tutti in un unica stringa perfetto che dire continuate così 👍
Cons
Mi è piaciuto di meno il fatto che inserisco il codice .css è lo modifica alleggerendo notevolmente ma alcune volte sbaglia, mi è capitato di inserire un colore RGB in CSS, la rimodificato è quando ho aperto il foglio HTML il colore invece di essere su un grigio particolare era diventato un'altro colore propio, ecco qui c'è da rivedere perchè i valori dei colori e delle classi vanno lasciati così come sono, altrimenti si crea casino quando apri il foglio .css ottimizzato spero migliorate questa cosa
Reason for choosing CSS HTML Validator
Ho scelto CSS HTML Validator perchè è il primo in classifica tra i motori di ricerca, è ne parlano bene su molti forum, è poi semplifica di molto le cose
Review Source
RE
Roger E.
Docente
Primary/Secondary Education
Used the software for: 6-12 months
### "Creación de páginas personalizadas con CSS HTMLValidator"
September 7, 2023
5.0
Es un programa que me enseñó lo básico de la creación de páginas html aplicando CSS, fue una herramienta interesante.
Pros
Es una herramienta muy sencilla y fácil de entender, te acostumbras a su menú y herramientas diferentes.
Cons
Es necesario abrir un navegador aparte para observar el progreso de la página y su costo es muy elevado para aprender a crear web.
Review Source
Armando Franck N.
Étudiant
Education Management
Used the software for: 2+ years
### "Lège ,simple et puissant "
October 15, 2022
5.0
Satisfait à 100%
Pros
Verification syntaxique, accessibilité des liens vérification des liens .
Cons
Il y’a rien a dire si c’est n’es qu’au niveau des couleurs et interface qui peuvent être améliorer le reste est okay
Review Source
RJ
RC J.
Boss Man
Sports
Used the software for: 2+ years
### "My Review and Comment of and about CSE HTML Validator Software"
October 18, 2019
5.0
I have been using this software since 2011. The fact that it found all the errors in my code and presented the reason why in a manner that I could understand is wonderful. It helped me insure my web pages were formatted correctly and would not be rejected by the various search engines.
Pros
Very fast and easy to use. Allowed me to find errors and explanations quickly and easily.
Cons
For me it has a lot of options that I do not use, some because I do not understand them some I just do not use.
Review Source
JL
Joel L.
Student
E-Learning
Used the software for: Less than 6 months
### "Seems to make learning easier"
November 13, 2019
4.0
It has been a fantastic experience working with the CSS HTML Validator, I would definitely recommend this software to a friend.
Pros
I really appreciate the fact that this software can anticipate what I am about to type and will finish code for me, as it helps me to type the code faster. I'm pretty new to HTML and CSS, so as a student, the color scheme helps me to catch errors very quickly which is very helpful. Lastly, I'm very thankful that the validator can not only catch errors but often it can tell me what code I intended to include.
Cons
I wish this software would also validate javascript, that way I would be able to code my entire site within this one validator. I love using CHV but am currently being forced to spend a portion of my time in another IDE.
Review Source
PY
Paul Y.
NA
Individual & Family Services
Used the software for: 2+ years
### "CSS HTML Validator - Awesome Software"
May 18, 2021
5.0
Been using it for years to create web pages. Easy to use, but occasionally the error message or suggested correction is hard to understand. When that happens, just post on their support forum. You typically get an answer the next days or sometimes an additional day later. I've yet not to been able to solve an HTML error.
Pros
Easy to use. It checks your HTML to ensure it is correct - regardless of which version of HTML you are writing for. If your HTML needs correction, it provides suggested corrections.
Cons
Nothing. This software is great. Never had any problems with it. I am using the paid Professional version, but the cost - to me - is not of concern if I want to write HTML pages that are correct and above all: Work!
Review Source
AM
Allen M.
Owner
Information Technology and Services
Used the software for: 2+ years
### "Useful checker for embedding html and css code into javascript"
October 4, 2021
4.0
Constructing html from scratch. There is no way to do that easily without some sort of checker/previewer like this.
Pros
The most important benefit to my mind is that the validator EXPLAINS WHY! The notes on the side for each message are extremely helpful.
Cons
I am not sure I love the TaDa sound but I am sure I can disable that....
Review Source
Response from AI Internet Solutions
October 7, 2021
Thank you for the good review! I see you gave only 3 stars for 'ease of use'. If you have any suggestions on how to make the program easier to use, then please email them to support@htmlvalidator.com. Thank you!
Dehn M.
Owner
Internet
Used the software for: I used a free trial
### "CSS & HTML Validation is a breeze with this tool"
October 18, 2019
5.0
I used it to see about a tool for checking code that may rival other more expensive tools I have been using
Pros
Simple and standard layout....intuitive and easy to adjust to after using other products in the past
Cons
Color option at start, likely has tools to theme it but the initial color is jarring
Review Source
PB
Peter B.
CEO
Printing
Used the software for: 2+ years
### "Can't Imagine My Business Without It"
July 29, 2019
5.0
Makes my projects easy and accomplished in record time.
Pros
The frequent updates keep up with the many changes in the market. Easy to navigate to any and all of its features. Priced Right !
Cons
Nothing comes to mind, it's all good as is
Reason for choosing CSS HTML Validator
What was offered is what I was looking for, so no reason to keep searching
Review Source
EJ
Eric J.
Marketing Manager
Hospital & Health Care
Used the software for: 2+ years
### "Worth Every Penny"
July 29, 2019
5.0
Never put a page live, without using this to check it first. Highly recommend it.
Pros
Easy to use, gives you virtually instant feedback and helps insure you pages are properly formatted.
Cons
No complaints. Easy to turn off warning messages, if you don't want to be warned about a specific error.
Reason for choosing CSS HTML Validator
Great Value from what I saw.
Review Source
MR
Michelle R.
Programmer
Information Technology and Services
Used the software for: 6-12 months
### "Excellent tool for programmers "
August 17, 2019
4.0
Overall, pretty solid. Honestly don’t have any major issues to report.
Pros
Programming is what I do... each and every day. As a result, I find myself working with a lot of software, as well as trying out things to make my code easier to edit , so markups, or debug. This is personally what I use to markup and edit my code I plan to use for websites . It is not really commercial, just for personal use.
Cons
Hyper markups are a finicky beast at times... seems you are always missing something. This software catches a lot, but doesn’t always edit or mark up everything I need it to.
Review Source
MJ
Matthew J.
Director of Engineering
Entertainment
Used the software for: 2+ years
### "Complete Validation in One Product!"
June 19, 2019
5.0
Fantastic product, that I have used for many years. I use it to get an overall validation of a webpage.
Pros
Fast, and powerful. The software will do accessibility validation, HTML validation and best practices all in one sweep. Once it is done running the audits it will give you a complete list of items that need to be addressed.
Cons
The cost of the upgrades. I wish I could purchase once and then each update would cost a small amount, I sometimes skip versions to wait for better features to warrant the upgrade price.
Review Source
Milan R.
web developer
Information Technology and Services
Used the software for: 6-12 months
### "Solid tool"
April 6, 2020
5.0
Very good product, fast and efficient , supports everything you need for validation of your code and more.
Pros
Very good tool for web designers/developers to check their code for mistakes before going to production. Supports a lot of programming languages, checks for spelling errors, links etc...
Cons
Nothing considering the product itself. The price is a bit expensive in my opinion , especially for "enterprise" plan.
Review Source
QM
Quinn M.
composer/conductor
Music
Used the software for: I used a free trial
### "Really helped out my website!"
August 1, 2019
4.0
Pros
One use of this software and I was able to locate and fix many of the problems that made my website ineffective before. The layout made finding everything easy, so I was able to work quick.
Cons
The pricing for the full version can sometimes be a little steep and beyond my reach as a student.
Review Source
Response from AI Internet Solutions
August 2, 2019
Thank you for the review! I'm glad that CSS HTML Validator really helped your website. As a student, you may qualify for the educational/academic discount. Please visit our website for more information about this discount.
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