# pillarjs/multiparty

A node.js module for parsing multipart-form data requests which supports streams2

Repository: https://github.com/pillarjs/multiparty
Canonical: https://ross.abutalabs.com/products/multiparty
Language: JavaScript
License: MIT
License Family: permissive
Topics: javascript, nodejs, multipart, form-data
Last push: 2026-05-26T22:08:51+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 84, release rhythm 51, longevity 100
- inputs: {"age_days": 5085, "days_push": 99, "days_rel": 114, "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 1298, forks 164 (observed 2026-08-28T04:04:17.221114+00:00)

## What it is
multiparty is a Node.js library for parsing HTTP requests with content-type multipart/form-data, commonly used for handling file uploads. It supports streaming (streams2) and offers configurable limits on field and file sizes.

## Use cases
- parse multipart/form-data file uploads in node.js
- handle file upload requests in an http server
- stream incoming form data without buffering everything in memory
- extract fields and files from a form post
- limit upload size and field count in node.js

## When to choose
- you need a battle-tested multipart parser for a plain Node.js http server
- you want streaming parsing of large file uploads
- you need fine-grained limits on fields and file sizes

## When to avoid
- you need maximum parsing performance - busboy is faster
- you are using a framework with built-in multipart handling
- you need browser-side form handling - this is server-side only

## Facets
- artifact type: library
- maturity: active
- function: parser, file-upload, http-server, middleware
- domain: web-development, backend, files, apis
- platform: -
- tags: multipart-form-data, file-upload, streaming, http-request-parsing, nodejs, javascript

## Member repositories
- pillarjs/multiparty (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:17.221114+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 2026-08-30T04:53:51.056749+00:00, confidence not recorded.
  - readme: https://github.com/pillarjs/multiparty (fetched 2026-08-28T04:04:17.221114+00:00, sha fb50f405f1c2)
  - registry_npm: https://registry.npmjs.org/multiparty (fetched 2026-08-29T12:10:27.012712+00:00, sha ec65ac61ccd1)
- Data as of 2026-08-30T08:39:29.467469+00:00.