Fastify Multipart
Multipart form data handling plugin for Fastify server.
HTTP servers and APIs npm MIT
How Fastify Multipart is used
Fastify Multipart joined the catalog on its public numbers (1,899,500 downloads a week on npm and 539 GitHub stars), not on our project count: it is a dependency in 8 public GitHub projects of our scan, 2 of them set up for AI coding agents. The most used alternative in our scan is multer (57 projects). Projects that use it most often also use Fastify (100.0%), @fastify/helmet (62.5%), @fastify/rate-limit (62.5%).
Fastify Multipart popularity over time
Gid Score 38: downloads 70, use in agent projects 14, GitHub stars 1, downloads trend 62 (each 0-100). How it is calculated.
Often used with Fastify Multipart
| Fastify | 100.0% of Fastify Multipart projects · 413.9× more than average |
|---|---|
| @fastify/helmet | 62.5% of Fastify Multipart projects · 1940.0× more than average |
| @fastify/rate-limit | 62.5% of Fastify Multipart projects · 776.0× more than average |
| tsx | 62.5% of Fastify Multipart projects · 4.1× more than average |
| Fastify CORS | 62.5% of Fastify Multipart projects · 431.1× more than average |
| Zod | 75.0% of Fastify Multipart projects · 3.0× more than average |
| Fastify Compress | 50.0% of Fastify Multipart projects · 1034.7× more than average |
| Vitest | 62.5% of Fastify Multipart projects · 3.0× more than average |
How Fastify Multipart is funded
Open Collective: Fastify
| Received, last 12 months | $11,981 Oct 2025 – Sep 2026 |
|---|---|
| Estimated annual budget | $15,492 Open Collective's estimate |
| Balance | $23,397 |
| Raised since the start | $23,585 · $188 paid out |
| Typical month median, last 12 months | $716 · $595 over 24 months |
| Last 12 months vs the 12 before | +37% |
| Contributors, last 12 months | 9 |
Top company backers all time, 7 companies in total
| Handsontable - JavaScript Data Grid | $2,700 since Jul 2024 |
|---|---|
| Val Town | $1,200 since Nov 2025 |
| OpenJS Foundation | $1,090 since Nov 2025 |
| TestMu AI (Formerly LambdaTest) | $1,000 since Sep 2025 |
| N-iX Ltd | $400 since Jul 2026 |
Nov 2023Sep 2026
Money by month. First money received in Nov 2023. The typical month is the median: one big one-off donation does not move it.
The same collective is named by 15 more tools in our catalog: Fastify, Fastify CORS, @fastify/static, @fastify/rate-limit, @fastify/cookie, Fastify Compress and others.
USD after payment processor fees, as Open Collective reports it; fiscal host Open Source Collective. Source
GitHub Sponsors
| @fastify | 11 current sponsors |
|---|
GitHub shows how many people and companies sponsor an account, not how much they pay.
Ways to fund Fastify Multipart
GitHub Sponsors Open Collective
As the maintainers list them in FUNDING.yml on GitHub. Checked Oct 20, 2026.
Install
| Package | npm install @fastify/multipart |
|---|---|
| Main stacks | TypeScript / JavaScript (6), Next.js (2) |
| Example projects | juanfran/tapiz |
Alternatives to Fastify Multipart
Tools that do the same job, so a project picks one or the other. Add-ons and libraries used alongside Fastify Multipart are not listed here; they are in "Often used with".
| Tool | Gid Score | Used in agent projects | Downloads / wk | GitHub stars | License |
|---|---|---|---|---|---|
| multer npm Express middleware for handling file uploads in multipart/form-data requests. |
68 | 57 (1.2%) | 12.9M | 12.1K | MIT |
More in HTTP servers and APIs: Uvicorn FastAPI Express cors python-multipart Flask Hono Starlette