Add multilingual spell checking capabilities to WinForms applications.
Prices from:
| Available in | |
|---|---|
| Telerik UI for WinForms | Loading |
| Telerik DevCraft | Loading |

The component supports dozens of languages, enabling spell checking functionality in various language contexts for WinForms applications.
Users can check spelling word-by-word or perform a comprehensive check on all text through a dedicated dialog window.
The SpellChecker works with Telerik's RadTextBox, RadTextBoxControl, and standard Microsoft TextBox controls.
Developers can provide custom dictionaries tailored to their application’s terminology or language requirements, enhancing spellchecking accuracy in specialized contexts.
Flag words with red squiggly underlines in textboxes as users type, offering right-click options to replace, ignore, or add words to dictionaries.
All user-facing strings are localizable, enabling global applications to adapt spell checking messages to the target language.
Right-clicking misspelled words offers context menus for editing, ignoring, or adding new words.
Review the details below to ensure this product is supported within your environment.
Telerik UI for WinForms SpellChecker is included as part of Telerik UI for WinForms which is also available in Telerik DevCraft.
Compare the features between Telerik UI for WinForms and Telerik DevCraft.
| Telerik UI for WinForms Subscription | |
|---|---|
per developer, per year | |
| Products Included | |
| AI Coding Assistant | Included |
| Agentic UI Generator | Not included |
| Page Templates & Building Blocks | Not included |
| ThemeBuilder | Not included |
| KendoReact | Not included |
| Kendo UI | Not included |
| Telerik UI for ASP.NET AJAX | Not included |
| Telerik UI for ASP.NET MVC | Not included |
| Telerik UI for ASP.NET Core | Not included |
| Telerik UI for Blazor | Not included |
| Telerik UI for .NET MAUI | Not included |
| Telerik UI for WinUI | Not included |
| Telerik UI for WPF | Not included |
| Telerik UI for WinForms | Included |
| Telerik Document Processing Libraries | Included |
| Telerik Reporting | Not included |
| Telerik JustMock | Not included |
| Telerik Report Server | Not included |
| Single Sign-On Support | |
| Source Code | |
| Support Services | |
| .NET MAUI Components | |
| Angular Components | |
| ASP.NET AJAX Components | |
| ASP.NET Core Components | |
| ASP.NET MVC Components | |
| Blazor Components | |
| Document Processing | |
| jQuery Components | |
| JustMock Features | |
| React Components | |
| Report Server Features | |
| Reporting Features | |
| ThemeBuilder Features | |
| Vue Components | |
| WinForms Components | |
| WPF Components | |
| WinUI Components | |
Telerik, founded in 2002 and headquartered in Sofia, Bulgaria, develops UI component libraries, reporting tools, and testing solutions for .NET and JavaScript application development. Its flagship products include Telerik DevCraft, a collection of UI, reporting, testing, and productivity tools for Microsoft development platforms, and Kendo UI, a suite of JavaScript UI libraries for frameworks including Angular, React, and Vue. Telerik also provides document processing, reporting, and automated testing technologies designed for web, desktop, and mobile software development environments.

As official and authorized distributors since 2018, ComponentSource supplies you with legitimate licenses directly from Telerik.
Chat with our customer support team