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  1. okhttp okhttp Public

    Square’s meticulous HTTP client for the JVM, Android, and GraalVM.

    Kotlin 46.9k 9.3k

  2. retrofit retrofit Public

    A type-safe HTTP client for Android and the JVM

    HTML 43.9k 7.4k

  3. leakcanary leakcanary Public

    A memory leak detection library for Android.

    Kotlin 29.9k 4k

  4. picasso picasso Public

    A powerful image downloading and caching library for Android

    Kotlin 19.1k 4k

  5. javapoet javapoet Public archive

    A Java API for generating .java source files.

    Java 10.9k 1.4k

  6. moshi moshi Public

    A modern JSON library for Kotlin and Java.

    Kotlin 10.1k 799

Repositories

Showing 10 of 297 repositories
  • workflow-kotlin Public

    A Swift and Kotlin library for making composable state machines, and UIs driven by those state machines.

    square/workflow-kotlin’s past year of commit activity
    Kotlin 1,104 Apache-2.0 113 144 (3 issues need help) 30 Updated Feb 21, 2026
  • metro-extensions Public

    Square's specific extensions for Metro to make dependency injection easier.

    square/metro-extensions’s past year of commit activity
    Kotlin 5 Apache-2.0 0 1 4 Updated Feb 21, 2026
  • Blueprint Public

    Declarative UI construction for iOS, written in Swift

    square/Blueprint’s past year of commit activity
    Swift 704 Apache-2.0 48 10 11 Updated Feb 21, 2026
  • web-sdk Public

    Square Web SDK

    square/web-sdk’s past year of commit activity
    TypeScript 22 Apache-2.0 14 1 1 Updated Feb 21, 2026
  • web-payments-quickstart Public

    Quickstart for using Square's Web Payments SDK

    square/web-payments-quickstart’s past year of commit activity
    HTML 102 Apache-2.0 146 0 2 Updated Feb 21, 2026
  • Valet Public

    Valet lets you securely store data in the iOS, tvOS, watchOS, or macOS Keychain without knowing a thing about how the Keychain works. It’s easy. We promise.

    square/Valet’s past year of commit activity
    Swift 4,138 Apache-2.0 223 0 0 Updated Feb 20, 2026
  • wire Public

    gRPC and protocol buffers for Android, Kotlin, Swift and Java.

    square/wire’s past year of commit activity
    Kotlin 4,407 Apache-2.0 599 151 17 Updated Feb 20, 2026
  • mobile-payments-sdk-flutter Public

    Mobile Payments SDK Flutter Plug-in

    square/mobile-payments-sdk-flutter’s past year of commit activity
    Dart 13 Apache-2.0 7 5 6 Updated Feb 19, 2026
  • squalor Public

    Go SQL utility library

    square/squalor’s past year of commit activity
    Go 207 Apache-2.0 44 4 2 Updated Feb 19, 2026
  • sharkey Public

    Sharkey is a service for managing certificates for use by OpenSSH

    square/sharkey’s past year of commit activity
    Go 414 Apache-2.0 28 10 6 Updated Feb 19, 2026
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