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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.

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  6. moshi moshi Public

    A modern JSON library for Kotlin and Java.

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Repositories

Showing 10 of 296 repositories
  • leakcanary Public

    A memory leak detection library for Android.

    square/leakcanary’s past year of commit activity
    Kotlin 29,880 Apache-2.0 3,977 140 (2 issues need help) 10 Updated Feb 4, 2026
  • square-ruby-sdk Public

    Ruby client library for the Square API

    square/square-ruby-sdk’s past year of commit activity
    Ruby 76 MIT 45 2 2 Updated Feb 4, 2026
  • okhttp Public

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

    square/okhttp’s past year of commit activity
    Kotlin 46,862 Apache-2.0 9,259 64 30 Updated Feb 4, 2026
  • 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 1,102 Apache-2.0 112 143 (3 issues need help) 30 Updated Feb 3, 2026
  • certstrap Public

    Tools to bootstrap CAs, certificate requests, and signed certificates.

    square/certstrap’s past year of commit activity
    Go 2,433 Apache-2.0 212 21 11 Updated Feb 3, 2026
  • zstd-kmp Public

    Zstandard compression for Kotlin Multiplatform

    square/zstd-kmp’s past year of commit activity
    C++ 103 Apache-2.0 5 5 0 Updated Feb 3, 2026
  • wire Public

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

    square/wire’s past year of commit activity
    Kotlin 4,403 Apache-2.0 600 151 18 Updated Feb 3, 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-2.0 145 0 3 Updated Feb 3, 2026
  • okio Public

    A modern I/O library for Android, Java, and Kotlin Multiplatform.

    square/okio’s past year of commit activity
    Kotlin 8,979 Apache-2.0 1,214 91 17 Updated Feb 2, 2026
  • retrofit Public

    A type-safe HTTP client for Android and the JVM

    square/retrofit’s past year of commit activity
    HTML 43,872 Apache-2.0 7,353 128 41 Updated Feb 2, 2026
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