Lexiathan

A browser-based spell-checking engine that provides real-time spelling correction for web applications, handling typos, OCR errors, and severely misspelled words with deterministic results. It is for software developers and engineering teams building editors, forms, and document pipelines in businesses that require client-side processing. It is positioned as hundreds of times faster than Hunspell and SymSpell alternatives while running entirely locally as a compact WebAssembly binary with no network dependency or telemetry.

Key features

• Real-time spelling correction in browser
• Processes 100k-1M words per second
• Corrects at Levenshtein distance 6+
• Dynamic dictionary add/remove control
• Fully local client-side execution
• No telemetry or network activity
• 5 MB WebAssembly binary
• Zero heap allocation runtime
• Garbage-collection free execution
• Full document ingestion in single pass
• Precise character offsets for highlighting
• Unicode text support without configuration