Registry / data / snowball-stemmers

snowball-stemmers

library0.6.0jsnpmunverified

JavaScript port of the Snowball stemming algorithms (http://snowball.tartarus.org/), supporting 24 languages including Arabic, Russian, English, and more. The current stable version is 0.6.0, released sporadically. It is autogenerated from the Snowball compiler and uses ESJava. Key differentiators: lightweight, no dependencies, pure JS, and supports a wide range of languages. Compared to alternatives like natural or stemming libraries, it focuses on comprehensive language coverage. The library provides a simple factory API for creating stemmers and lists available algorithms.

data

npm install snowball-stemmers

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INSTALL

IMPORT

SIG · SNOWBALL-STEMMERS

snowball-stemmers

datajavascriptv0.6.0

Install

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Import

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Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

newStemmer (via default export)

✓ const snowballFactory = require('snowball-stemmers'); const stemmer = snowballFactory.newStemmer('english');

✗ import { newStemmer } from 'snowball-stemmers'; // wrong: not a named export

The package does not ship ES module types; it exports a factory function as default. Use CommonJS require. No type definitions provided.

algorithms

✓ const snowballFactory = require('snowball-stemmers'); const algs = snowballFactory.algorithms();

✗ const algorithms = require('snowball-stemmers/algorithms'); // wrong: no submodule path

algorithms is a method on the default export, listing all supported language names.

Stemmer instance (prototype methods)

✓ const stemmer = snowballFactory.newStemmer('russian'); const result = stemmer.stem('чаво');

✗ const result = snowballFactory.stem('чаво', 'russian'); // wrong: no such static method

Each stemmer instance has a stem() method. The factory creates instances per language.

Shows how to require the factory, create a stemmer for English, stem a word, and list all available algorithms.

const snowballFactory = require('snowball-stemmers'); const stemmer = snowballFactory.newStemmer('english'); console.log(stemmer.stem('running')); // 'run' console.log(snowballFactory.algorithms()); // ['arabic', 'armenian', ..., 'turkish']

Debug

Known issues

gotchaThe stem method may not handle non-ASCII characters correctly in all languages (e.g., Unicode normalization).

fix

Normalize input strings (NFKC) before stemming.

affects: <=0.6.0

gotchaThe package uses CommonJS and cannot be imported with ES module import syntax directly.

fix

Use require() instead of import. If using ESM, create a dynamic import wrapper.

affects: >=0.4

deprecatedSome algorithms like 'porter' are legacy and may be superseded by more recent Snowball algorithms.

fix

Use language-specific algorithm (e.g., 'english') instead of 'porter'.

affects: >=0.4

gotchaThe package is unmaintained since 2018; no updates for new languages or bug fixes.

fix

Consider using 'snowball-stemmer' (fork) or 'natural' library for active maintenance.

affects: *

Errors

Common errors & fixes

TypeError: require(...).newStemmer is not a function

Incorrect import style using named import or requiring wrong path.

fix

Use `const snowballFactory = require('snowball-stemmers');` then `snowballFactory.newStemmer('english')`.

Error: algorithm 'russin' not supported

Misspelling the language name.

fix

Check available algorithms with `snowballFactory.algorithms()`. Use exact string like 'russian'.

TypeError: stemmer.stem is not a function

Accessing stem method on the factory instead of an instance.

fix

Create a stemmer instance first: `const stemmer = snowballFactory.newStemmer('english');` then call `stemmer.stem(word)`.

Upgrade

Version history

0.6.0latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

10 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/mazko/jssnowball ↗

packagehttps://www.npmjs.com/package/snowball-stemmers ↗

homepagehttps://snowballstem.org ↗