SCAYT plugin for CKEditor 4

Out-of-the-box multilingual grammar and spell checker plugin for CKEditor 4 instantly detects and underlines writing issues in as-you-type mode.

Try it free
The language changes every minute. We make sure to keep your spelling up-to-date with regular dictionary updates.

Sentence corrector

Proofread spelling and grammar, improve your writing style. Enjoy spelling autocorrect and autocomplete suggestions.

Get truly global with 16 languages covered by default and 152 additionally available.


Go global with 20+ languages. Clean up texts with AI-driven English, German, and Spanish. Build custom dictionaries.



Data in transit is encrypted with TLS protocol. GDPR-compliant. On-premise deployment is for security-conscious businesses.

We love when our clients enjoy our products. So we take every client’s need as our own.


We respond within a business day to all sales and tech requests and provide guided installation in case it’s needed.


Languages support

SCAYT checks grammar and spelling in English, German, Spanish, French and 20+ languages.

Do your users speak other languages? See the full list of supported languages and try demos ›

There’s an extra option – language auto-detection, which helps you proofread multilingual docs without the hassle of manually switching languages.


Grammar corrector

Grammar check option is available in the premium version of SCAYT plugin for CKEditor 4. Meticulously proofread texts for grammar issues in many languages. Advanced proofreading with AI-based engines is available for English, German, and Spanish.

  • Intelligent recognition of sentence-level mistakes in over 20 languages.

  • Smart context-based correction suggestions. The grammar checker offers replacement options based on the general topic of the text.

Spelling dictionaries

Each company is a unique state with its own language and rules. Build custom word lists to make sure all your employees use the same terms, brand names, abbreviations. Dictionaries are available at the company and user level.

  • Each team member can build their own list of words and use it across multiple sites with the integrated SCAYT plugin for CKEditor 4.

  • Company-wide dictionaries are created and set on the admin level, and can be customized for particular user groups within the company.

Frequently asked questions

The on-premise licensing is particularly suitable for companies with enhanced security requirements, since it allows all the proofreading requests to be processed within your own servers. The cloud plans eliminate your infrastructure and maintenance costs for proofreading engine, ensuring quick start within your current setup.

If you still hesitate, feel free to get in touch with us. We will be happy to schedule a call with you to discuss the most suitable solution for you.

If you end up exceeding the limit, the service will stop working. However, our team monitors the usage, and notify customers beforehand with the proposal to purchase another set of words. In this case, the price depends on the potential customer usage (per year) and the price of the appropriate usage plan.

Please see the complete Terms of Service for the cloud services. Also, we have an extensive Privacy Policy in place to protect your and your end users’ texts. Please see the details here.

Please check the Software License Agreement which contains the complete terms and conditions for downloading, installing and using the on-premise version of the WebSpellChecker solutions.

According to Commercial License Fees and Warranties clauses of our standard Software License Agreement, you have an option to request a refund of your commercial server license up to 30 days after the original date of purchase. However, such a refund option is possible only in case WebSpellChecker software breaches the given warranty.

After the 30-day period after the original date of purchase, refunds will not be available. To request a refund within 30 days of payment, please contact our sales team.


By default, WebSpellChecker doesn’t offer any discounts. Our goal is to build reliable and quality products available at the best price and to treat every customer equally. The prices are available for everyone so there’s no guessing or uncertainty around what you’re buying and how much it costs.

We do offer our customers Data Processing Addendum, it forms a part of Terms of Service. Here you can find all the materials related to our commitment and compliance with GDPR.