CSS HTML Validator

CSS HTML Validator

AI Internet Solutions LLC
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About

AltTextify is an AI-powered tool that automatically generates meaningful, SEO-optimized, and accessibility-compliant alt text for your images. Designed for websites, e-commerce platforms, and content management systems, AltTextify uses advanced computer vision and natural language processing to create descriptive alt attributes that enhance both search engine visibility and user accessibility. The tool supports over 140 languages, making your content inclusive and globally optimized. AltTextify runs in the background without impacting performance and offers flexible settings so you can control when and how alt text is applied. Ideal for developers, marketers, and businesses aiming to meet WCAG 2.1 and ADA compliance while improving image SEO—without the manual effort. A free AltTextify account is required to get started. Sign up to explore our free trial and flexible pricing plans.

About

CSS HTML Validator for Windows, Mac, and Linux is a fast, powerful, highly user configurable, and easy to use web development tool that checks HTML, CSS, SEO, spelling, accessibility (including WCAG 2.0/2.1/2.2), PHP, XHTML, JavaScript, htmx, and links. CSS HTML Validator includes batch processing (in the Pro edition), integrated HTML/CSS editing, and much more. It works offline so it's super-fast and your privacy is protected because your documents are not uploaded to a server for checking. CSS HTML Validator Pro has superior customization features so you can configure the validation to your liking. You can even add your own validator messages, recognize your own HTML elements and attributes, and much more. Try CSS HTML Validator Pro for Windows free for 200 validations or 30 days, whichever comes first. A FREE limited version of htmlval for Mac and Linux is also available.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

AltTextify is ideal for developers, marketers, and businesses seeking an automated, AI-driven solution to enhance image SEO and accessibility compliance across global websites and platforms

Audience

Any person, business, or other entity with a website

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$5/month
175 credits per month, 3¢ Per Image
Free Version
Free Trial

Pricing

$60 (one time)
CSS HTML Validator Home Edition is only $60 and the Pro Edition is $125. The Mac and Linux command line tool (htmlval) is $79 (included with Pro).
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 4.8 / 5
ease 4.5 / 5
features 4.8 / 5
design 4.8 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • I starting using this five years ago, and have not looked back since. It really is a one-stop shop for keeping your code free of any problems. By finding issues in your code, however minor they might seem, you can keep your code clean, and this leads to far fewer problems in the long run. Without it, minor issues aren't caught, but at some stage they accumulate and then you end up with a big mess which is much harder to sort out. Good support if you have any problems in implementation. Highly recommended.
  • Excellent syntax checking that, in addition to locating errors, offers relevant targeted advice on correcting errors, best practices, accessibility, and SEO, making CSS HTML Validator a good tool when learning HTML, CSS, etc., and a sophisticated advisor even for an advanced practitioner. In addition to validating single HTML/CSS pages, it checks links and is able to process an entire website to generate a comprehensive analysis of all pages. The website can be local on the file system or online and accessed via a URL. The validator engine allows one to choose the level of error checking (Full, Errors only, Errors and warnings only, etc.) and enabling/disabling specific messages. The editor includes features specific to editing HTML and CSS pages. Validation includes JSON (in HTML pages) and WCAG (Web Content Accessibility Guidelines).
  • The ASPX pages are html nightmares for the most part. By testing the runtime manifestations against this product (in other words, grab the page source and drop it into this product), I can see a number of things that need to be addressed in the source - css, poor document structure The only limitation I have run into is that I need to embed css links in the pages explicitly instead of relying on the Telerik style sheet manager to organize and provide them to the app. It would be very helpful if a set of CSS stylesheets could be automatically searched and so on.
  • Love the way it tells you the line and the error message. Makes troubleshooting very easy. Just open your file and click validate, just that easy.

Cons

  • Nothing. If I had any difficulty in implementing a particular option, I contacted support and the problem was sorted.
  • As with any product, various individuals will have various preferences, but, for myself, I am at a loss to suggest possible improvements. As one who runs Linux, the fact that CSS HTML Validator is a Windows-only application was a "con" (I ran it in a VM), but, as of Wine 9.0, all features of CSS HTML Validator perform flawlessly when installed on Linux with Wine.
  • I am not sure why I get the starting panel offering me options on startup. Maybe it can be disabled. A bit annoying.
  • Wish there was a lifetime price for upgrades, but am satisfied with the current pricing per version.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

AltTextify
Founded: 2023
India
alttextify.net

Company Information

AI Internet Solutions LLC
Founded: 1997
United States
www.htmlvalidator.com

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Categories

SEO

Categories

SEO Features

A/B Testing
Artificial Intelligence (AI)
Auditing
Competitor Analysis
Content Management
Dashboard
Google Analytics Integration
Keyword Research Tools
Keyword Tracking
Link Management
Localization
Mobile Search Tracking
Rank Tracking
Revenue Management
User Management

SEO Features

A/B Testing
Artificial Intelligence (AI)
Auditing
Competitor Analysis
Content Management
Dashboard
Google Analytics Integration
Keyword Research Tools
Keyword Tracking
Link Management
Localization
Mobile Search Tracking
Rank Tracking
Revenue Management
User Management

Web Accessibility Testing Features

ADA Compliance
Alerts / Notifications
Automated Testing
Mobile Accessibility Testing
Ongoing Accessibility Monitoring
Reporting / Analytics
Visualize Accessibility
WCAG Compliance

Website Optimization Tools Features

Competitor Analysis
Content Management
Keyword Research Tools
Link Management
Performance Metrics
Problem Area Alerts

Integrations

Albato
Axis LMS
BigCommerce
Clarisco Solutions
EmEditor
Magento
Pabbly Connect
Shopify
SureTriggers
WooCommerce
WordPress
Zapier

Integrations

Albato
Axis LMS
BigCommerce
Clarisco Solutions
EmEditor
Magento
Pabbly Connect
Shopify
SureTriggers
WooCommerce
WordPress
Zapier
Claim AltTextify and update features and information
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