Data fetching and APIs
GraphQL
37.3K sitesOpen source
GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data.
Django REST Framework
Open source
Builds APIs on top of Django.
Used byOlist
gRPC
Open source
Fast, typed calls between services over HTTP/2.
Used byDiscord
PostgREST
Open source
Turns a PostgreSQL database into a REST API automatically.
Used bySupabase
SWR
Open source
React hooks for data fetching with caching, from Vercel.
TanStack Query
Open source
Fetching, caching and syncing server data in the front end.
tRPC
Open source
End-to-end type-safe APIs between a TypeScript server and client, no schema needed.
Data from the open Wappalyzer database (enthec/webappanalyzer, GPL-3.0), updated every week. Site counts from the HTTP Archive (September 2026). Code tools (frameworks, build, ORMs…) come from a list kept by Faundr.