WebSpellChecker Proofreader

WebSpellChecker Proofreader is based on SpellCheckAsYouType (SCAYT) core. It is designed to simplify the integration and combine the functionality of proofread as you type functionality and proofread in a dialog.


SpellCheckAsYouType allows the user to see and correct misspellings while typing. Misspelled words are underlined. The user just needs to right-click a marked word and select a suggestion to replace the word with. Now with grammar check support.


WebSpellChecker operates in a separate browser window so your work is not obstructed. Corrected text is automatically returned to the form.

WebSpellChecker.net Web API

Web API provides suggestions for spelling and grammar corrections for specified text. It can be used to implement your own spell-checking and grammar check strategy for a web interface or for a database.

Sign up for free trialFor 30 days

Get Your Free 30-Day Trial Now! Your trial is a full software version and you will have samples to get started. A trial is available for both solutions: Cloud and Server. A trial is available for all WebSpellChecker products.


  • WebSpellChecker Cloud
    The WebSpellChecker Cloud version runs on our servers and the services are provided for an annual fee and have some limitations.
  • WebSpellChecker Server
    The WebSpellChecker Server version runs on your server and includes all WebSpellChecker products and provides unlimited use on a permanent basis.

Special Features

  • Supported for 16 default languages and all available additional languages (grammar checking functionality is available for 14 out of 16 default languages).
  • Unlimited custom dictionaries
    (both universal custom dictionaries for all users and a personal dictionary for each user).
  • Misspelled words are underlined in red. Grammar problems are underlined in green.
  • Easy to install
    (By adding a few simple lines of HTML code and inserting a small script, WebSpellChecker Proofreader can be installed on any HTML-based website.)
Supported in all modern browsers such as Chrome, Firefox, Internet Explorer 11+, MS Edge, and Safari.