# productdevbook/hucre

Zero-dependency spreadsheet engine. Read & write XLSX, CSV, ODS. Pure TypeScript, works everywhere.

Repository: https://github.com/productdevbook/hucre
Canonical: https://ross.abutalabs.com/products/hucre
Homepage: https://hucre.productdevbook.com
Language: TypeScript
License: MIT
License Family: permissive
Topics: csv, csv-parser, esm, excel, ods, parser, spreadsheet, streaming, tree-shakeable, typescript, xlsx, xlsx-parser, xlsx-writer, zero-dependency, ods-parser
Last push: 2026-08-13T17:27:12+00:00

## Health v2 (maintenance only)
Score: 80/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 97, longevity 11
- inputs: {"age_days": 162, "days_push": 20, "days_rel": 20, "gap_med": 12.5, "n_releases_24m": 11}
- flags: young
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2098, forks 62 (observed 2026-08-28T04:06:13.386194+00:00)

## What it is
hucre is a zero-dependency spreadsheet engine written in pure TypeScript that reads and writes XLSX, CSV, ODS, JSON, NDJSON, and XML with schema validation, streaming, and round-trip preservation. It ships as tree-shakeable ESM modules that work in browsers, Node.js, and edge runtimes.

## Use cases
- parse xlsx files in typescript
- generate excel files from json data
- read and write csv with type inference
- convert ods spreadsheets to json
- export spreadsheet in edge runtime or browser
- stream large csv files without dependencies
- replace sheetjs or exceljs with a lightweight library

## When to choose
- you need a small, tree-shakeable, zero-dependency spreadsheet parser/writer
- you target edge runtimes or CSP-restricted environments where eval-based libraries fail
- you want native TypeScript types and native ESM
- you need round-trip preservation across XLSX, CSV, ODS, and JSON formats

## When to avoid
- you need advanced Excel features like charts, pivot tables, or macros
- you rely on SheetJS's CDN-only distribution or its broader ecosystem
- you need a battle-tested library with years of production hardening for complex legacy XLSX files

## Facets
- artifact type: library
- maturity: active
- function: parser, serialization, file-system, data-science, developer-tools
- domain: spreadsheets, files, web-development, developer-tools
- platform: browser, wasm, cross-platform, bun
- tags: xlsx, csv, ods, spreadsheet-engine, zero-dependency, tree-shakeable, streaming, esm, schema-validation, ndjson, data-engineering, nodejs, deno, typescript

## Member repositories
- productdevbook/hucre (main) score 80

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:13.386194+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 2026-08-30T02:54:30.399991+00:00, confidence not recorded.
  - readme: https://github.com/productdevbook/hucre (fetched 2026-08-28T04:06:13.386194+00:00, sha ad090a0ecb1b)
  - homepage: https://hucre.productdevbook.com (fetched 2026-08-29T10:34:56.757203+00:00, sha c7b09c813502)
  - registry_npm: https://registry.npmjs.org/hucre (fetched 2026-08-29T10:34:56.766503+00:00, sha c46cc9fa65f7)
- Data as of 2026-08-30T08:39:29.467469+00:00.