Version 14.02 is now available!
  • Licenses start at only $69.
  • Use one license on up to two computers if you are the only user of both computers.
  • Licenses are NOT limited by number of websites or domains.
  • Your purchase is backed by our 30-day money back guarantee.
  • We also offer a special TopStyle 5 bundle offer.
  • You can also buy from a software reseller.
  • Please contact us if you have any problems or questions.

Buy CSE HTML Validator from Only $69

CSE HTML Validator Box
Price per License (in USD)
Number of Licenses Standard Professional Enterprise
Single License Buy Now for $69 Buy Now for $129 Buy Now for $299
Two to Nine Licenses $69 $109 $249
TopStyle 4 Bundle $99 $159 NA
--- 30 DAY MONEY BACK GUARANTEE ---

Buy Standard Buy Professional Buy Enterprise

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Visa, Mastercard, American Express, Discover, More

When you place an order, your order will be securely processed through Plimus. Plimus charges US sales tax only for CA residents. Plimus also offers many different payment options, including credit card, PayPal, e-check, online bank transfer, direct debit, and France's Carte Bleue.

Compare Editions  Gov't Information  Site Licenses  Upgrade Policy  Classroom Use

After placing an order, please wait for download and registration information to be emailed to you. This will allow you to download a registerable version and register it.

If you need more information before buying then please visit the detailed ordering page with complete ordering information.

Optional Priority Support and Maintenance (PS&M)

Optional priority support and maintenance (PS&M) (for one and two year periods) is now available. This includes priority support for technical support questions as well as guaranteed free major upgrades during the priority support and maintenance period.

To add PS&M to your order, simply choose the appropriate option on the order page to add PS&M for the desired period (one or two years). The below prices are valid only when buying new licenses or when buying version or edition upgrades for existing licenses and are in addition to the new license or upgrade price.

NOTE: New orders for (and upgrades to) the enterprise edition include one year of PS&M at no additional cost.

PS&M Pricing for New Licenses and When Upgrading (price per license in USD)
Time Period Standard Professional Enterprise
One Year $49 $49 Included ($0)
Two Years $98 $98 $149
--- 30 DAY MONEY BACK GUARANTEE ON NEW LICENSES ---

Special TopStyle 5 Bundles

NOTE: When buying the TopStyle bundle, you can optionally upgrade to CSE HTML Validator Professional for an additional $60.

Buy CSE HTML Validator and TopStyle 5 together and save!

TopStyle contains powerful tools for building standards-compliant web sites. Use it to edit your HTML, XHTML, and CSS in a single application.

TopStyle integrates with CSE HTML Validator, so you can check your documents with CSE HTML Validator without leaving TopStyle.

Buy TopStyle 5 and CSE HTML Validator Standard together for only $99 and save almost $50 compared to buying them individually!

Buy TopStyle Bundle TopStyle Website

Do you already have TopStyle and want a TopStyle 5 upgrade bundled with a new CSE HTML Validator license? If so, then you can buy a TopStyle Upgrade Bundle for only $69:

Buy TopStyle 5 Upgrade Bundle (requires TopStyle 4 license)

30-Day Money Back Guarantee

AI Internet Solutions offers a 30-day money back guarantee. If you are not completely satisfied with CSE HTML Validator, then we will gladly give you a refund if you tell us within 30 days of your purchase.