# nextapps-de/flexsearch

Next-generation full-text search library for Browser and Node.js

Repository: https://github.com/nextapps-de/flexsearch
Canonical: https://ross.abutalabs.com/products/flexsearch
Language: JavaScript
License: Apache-2.0
License Family: permissive
Topics: search, search-algorithm, search-engine, searching-algorithms, searching, search-in-text, full-text-search, fulltext-search, elasticsearch, nodejs, javascript, javascript-library, web, web-worker, open-source, fuzzy-search, fuzzy
Last push: 2026-06-28T18:05:03+00:00

## Health v2 (maintenance only)
Score: 70/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 89, release rhythm 28, longevity 100
- inputs: {"age_days": 3111, "days_push": 66, "days_rel": 469, "gap_med": 31.5, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 13781, forks 523 (observed 2026-08-28T04:11:04.768135+00:00)

## What it is
FlexSearch is a fast, memory-efficient full-text search library for JavaScript that runs in both the browser and Node.js. It supports fuzzy matching, document/tag search, highlighting, web workers, and persistent indexes.

## Use cases
- add instant search to a static site or docs page
- search thousands of records client-side without a server
- implement fuzzy typo-tolerant search in a Node.js app
- build autocomplete or typeahead suggestions
- run search indexing in a web worker to keep the UI responsive
- replace heavyweight Elasticsearch for small-to-medium datasets

## When to choose
- you need fast in-memory full-text search in JavaScript
- you want client-side search without a backend
- you need fuzzy matching, tagging, and highlighting in one lightweight library

## When to avoid
- you need distributed search across large clusters
- you need advanced relevance ranking or aggregations like Elasticsearch
- your data must be indexed by a separate backend service

## Facets
- artifact type: library
- maturity: stable
- function: search-engine, web-framework
- domain: web-development, developer-tools
- platform: browser, cross-platform
- tags: full-text-search, fuzzy-search, in-memory-index, web-worker, client-side-search, search, nodejs

## Member repositories
- nextapps-de/flexsearch (main) score 70

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:04.768135+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 2026-08-29T17:13:02.712472+00:00, confidence not recorded.
  - readme: https://github.com/nextapps-de/flexsearch (fetched 2026-08-28T04:11:04.768135+00:00, sha 13a19f607ad5)
- Data as of 2026-08-30T08:39:29.467469+00:00.