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Data fetching and APIs

7 technologies: what each one does, whether it is SaaS or open source, its price range and its website.

  • GraphQL

    37.3K sitesOpen source

    GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data.

    Used byAirbnb,GitLab,Linear,Shopify

    Website

  • Django REST Framework

    Open source

    Builds APIs on top of Django.

    Used byOlist

    Website

  • gRPC

    Open source

    Fast, typed calls between services over HTTP/2.

    Used byDiscord

    Website

  • PostgREST

    Open source

    Turns a PostgreSQL database into a REST API automatically.

    Used bySupabase

    Website

  • SWR

    Open source

    React hooks for data fetching with caching, from Vercel.

    Website

  • TanStack Query

    Open source

    Fetching, caching and syncing server data in the front end.

    Website

  • tRPC

    Open source

    End-to-end type-safe APIs between a TypeScript server and client, no schema needed.

    Used byCal.com,Documenso

    Website

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.

More in Code

Languages 21Data pipelines and queues 18Backend frameworks 16Infrastructure and DevOps 12Databases and caches 10Full-stack frameworks 9Build tools and runtimes 8Styling and UI kits 8ORMs and query builders 6UI libraries 6Mobile app frameworks 5Testing 5Animation 4AI platforms 4Validation 3Desktop app frameworks 2