WebSpellChecker offers a portfolio of multilingual sentence check solutions for dev companies, businesses, and individuals, WProofreader Software Development Kit (SDK), SCAYT plugin for CKEditor 4, WProofreader plugin for WordPress. WProofreader SDK — ready-made plugins for HTML editors and a standalone API helping development teams enrich web apps and custom systems with grammar and spelling checking functionality. Spell and grammar check coverage 20+ languages. Cloud (SaaS model) and On-premise (self-hosted) deployment options. WProofreader free browser extension for Chrome, Firefox, and Microsoft Edge is designed for individuals and businesses with a focus on data security and privacy. Key features: data security within on-premise version, multilingual text checker, language autodetect, spelling autocorrect, autocomplete suggestions, integrations with business software, personalization options, spelling dictionaries.