# hunspell/hunspell

The most popular spellchecking library.

Repository: https://github.com/hunspell/hunspell
Canonical: https://ross.abutalabs.com/products/hunspell
Homepage: http://hunspell.github.io/
Language: C++
License: LGPL-2.1
License Family: copyleft
Topics: natural-language-processing, spellcheck, spellchecker, stemming, spell-check, spell-checking-engine, spell-checker
Last push: 2026-08-16T16:55:09+00:00

## Health v2 (maintenance only)
Score: 82/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 50, longevity 100
- inputs: {"age_days": 4101, "days_push": 17, "days_rel": 120, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2572, forks 278 (observed 2026-08-28T04:07:01.503082+00:00)

## What it is
Hunspell is a free spell checker and morphological analyzer library and command-line tool written in C++, licensed under LGPL/GPL/MPL. It powers spell checking in LibreOffice, Firefox, Chrome, and macOS, with support for complex morphology, compounding, stemming, and Unicode.

## Use cases
- add spell checking to my application
- check spelling of words in multiple languages
- stem words and analyze morphology in text
- get spelling suggestions for misspelled words
- spell check LaTeX or HTML documents from the command line
- support agglutinative languages with rich morphology in a spellchecker

## When to choose
- you need a mature, widely adopted spell checking engine with C/C++ APIs
- you need support for languages with complex morphology or compounding
- you want a battle-tested checker used by browsers and office suites
- you need a command-line spell checker with format-aware parsing

## When to avoid
- you need grammar checking rather than spelling
- you want a pure high-level scripting solution without C++ dependencies (though bindings exist)
- you need statistical/neural spell correction beyond dictionary-based suggestions

## Facets
- artifact type: library
- maturity: stable
- function: nlp, parser, cli
- domain: developer-tools
- platform: windows, cross-platform, cli
- tags: spellcheck, spell-checker, stemming, morphological-analysis, dictionaries, c-plus-plus, natural-language-processing, localization, linux, macos

## Member repositories
- hunspell/hunspell (main) score 82

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:01.503082+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:23:09.700589+00:00, confidence not recorded.
  - readme: https://github.com/hunspell/hunspell (fetched 2026-08-28T04:07:01.503082+00:00, sha c8e7d1d9447c)
  - homepage: http://hunspell.github.io/ (fetched 2026-08-29T10:05:30.935053+00:00, sha 0093170954ac)
- Data as of 2026-08-30T08:39:29.467469+00:00.