wolfgarbe/SymSpell

Health v2 · maintenance only

Adoption not part of the score

3460 stars · 311 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

SymSpell is a C# library implementing the Symmetric Delete spelling correction algorithm for extremely fast spelling correction and fuzzy string search. It also supports compound-aware correction and word segmentation, and is language independent.

Use cases

• correct spelling errors in user search queries
• fuzzy match strings against a dictionary at high speed
• segment concatenated text into words
• build autocorrect for a text editor
• check spelling of Chinese or other language text
• find closest dictionary match for OCR output

When to choose

• you need spelling correction orders of magnitude faster than Norvig-style approaches
• you need language-independent correction including CJK text
• you need compound-aware correction or word segmentation in .NET

When to avoid

• you need a full-featured search engine rather than a spelling component
• your project cannot use .NET and no port is available
• you need context-aware (grammar-based) correction rather than edit-distance lookup

Facets

library · maturity stable

nlp search-engine parser dotnet cross-platform spell-check fuzzy-search edit-distance damerau-levenshtein word-segmentation string-matching natural-language-processing search algorithms

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markdown · JSON · MCP: product_card(name="wolfgarbe/SymSpell")