Repositories list

• skipper

  Public
  An HTTP router and reverse proxy for service composition, including use cases like Kubernetes Ingress

  gokubernetescloud+ 10

  gokubernetescloudrouterproxyhttp-proxyetcdingress-controllerkubernetes-ingresseskip+ 3

  Go

  •

  Other

  •409409 forks in zalando/skipper•3.3k3.3k stars in zalando/skipper•247247 issues in zalando/skipper•6868 pull requests in zalando/skipper•Updated Oct 29, 2026Oct 29, 2026

• logbook

  Public
  An extensible Java library for HTTP request and response logging

  javaspring-bootmonitoring+ 11

  javaspring-bootmonitoringloggerlogbooklogginglogsspring-boot-starterclient-sideserver-side+ 4

  Java

  •

  MIT License

  •291291 forks in zalando/logbook•2.1k2.1k stars in zalando/logbook•1313 issues in zalando/logbook•1515 pull requests in zalando/logbook•Updated Oct 29, 2026Oct 29, 2026

• postgres-operator

  Public
  Postgres operator creates and manages PostgreSQL clusters running in Kubernetes

  kubernetesgolangpostgres+ 7

  kubernetesgolangpostgresclusterpostgresqldatabase-as-a-serviceoperatordata-infrastructuremanaged-servicespostgres-operator

  Go

  •

  MIT License

  •1.1k1.1k forks in zalando/postgres-operator•5.3k5.3k stars in zalando/postgres-operator•462462 issues in zalando/postgres-operator•8989 pull requests in zalando/postgres-operator•Updated Oct 27, 2026Oct 27, 2026

• spilo

  Public
  Highly available elephant herd: HA PostgreSQL cluster using Docker

  pythondockerdocker-image+ 4

  pythondockerdocker-imagepostgresqlhigh-availabilitypatronidata-infrastructure

  Python

  •

  Apache License 2.0

  •461461 forks in zalando/spilo•1.9k1.9k stars in zalando/spilo•106106 issues in zalando/spilo•4040 pull requests in zalando/spilo•Updated Oct 27, 2026Oct 27, 2026

• gin-oauth2

  Public
  Middleware for Gin Framework users who also want to use OAuth2

  oauth2authenticationauthorization+ 2

  oauth2authenticationauthorizationgingin-middleware

  Go

  •

  MIT License

  •7070 forks in zalando/gin-oauth2•619619 stars in zalando/gin-oauth2•77 issues in zalando/gin-oauth2•33 pull requests in zalando/gin-oauth2•Updated Oct 26, 2026Oct 26, 2026

• zally

  Public
  A minimalistic, simple-to-use API linter

  kotlinapigolang+ 8

  kotlinapigolangspring-bootapi-managementlinterswaggeropenapihacktoberfestapi-linter+ 1

  Kotlin

  •

  MIT License

  •157157 forks in zalando/zally•945945 stars in zalando/zally•8989 issues in zalando/zally•1515 pull requests in zalando/zally•Updated Oct 19, 2026Oct 19, 2026

• tech-radar

  Public
  Visualizing our technology choices

  documentation

  documentation

  MIT License

  •720720 forks in zalando/tech-radar•1.9k1.9k stars in zalando/tech-radar•66 issues in zalando/tech-radar•44 pull requests in zalando/tech-radar•Updated Oct 17, 2026Oct 17, 2026

• go-keyring

  Public
  Cross-platform keyring interface for Go

  golangauthenticationutilities+ 3

  golangauthenticationutilitiessecretdbuskeyring

  Go

  •

  MIT License

  •119119 forks in zalando/go-keyring•1.4k1.4k stars in zalando/go-keyring•2929 issues in zalando/go-keyring•1010 pull requests in zalando/go-keyring•Updated Oct 16, 2026Oct 16, 2026

• public-presentations

  Public
  List of public talks by Zalando Tech: meetup presentations, recorded conference talks, slides

  6363 forks in zalando/public-presentations•194194 stars in zalando/public-presentations•1313 issues in zalando/public-presentations•00 pull requests in zalando/public-presentations•Updated Oct 10, 2026Oct 10, 2026

• hotvect

  Public
  A feature engineering and serving library

  Java

  •

  Apache License 2.0

  •22 forks in zalando/hotvect•00 stars in zalando/hotvect•00 issues in zalando/hotvect•00 pull requests in zalando/hotvect•Updated Oct 10, 2026Oct 10, 2026

• riptide

  Public
  Client-side response routing for Spring

  javahttpmicroservices+ 9

  javahttpmicroserviceswebspringasyncroutingspring-boot-starterclient-sideresilience+ 2

  Java

  •

  MIT License

  •7979 forks in zalando/riptide•341341 stars in zalando/riptide•44 issues in zalando/riptide•1414 pull requests in zalando/riptide•Updated Oct 7, 2026Oct 7, 2026

• restful-api-guidelines

  Public
  A model set of guidelines for RESTful APIs and Events, created by Zalando

  apidocumentationrest-api+ 4

  apidocumentationrest-apirestfulguidelineszalandorestful-api

  CSS

  •

  Creative Commons Attribution 4.0 International

  •447447 forks in zalando/restful-api-guidelines•3.3k3.3k stars in zalando/restful-api-guidelines•99 issues in zalando/restful-api-guidelines•22 pull requests in zalando/restful-api-guidelines•Updated Sep 29, 2026Sep 29, 2026

• zalando.github.io

  Public
  Open Source Documentation and guidelines for Zalando developers

  documentation

  documentation

  HTML

  •

  MIT License

  •3636 forks in zalando/zalando.github.io•113113 stars in zalando/zalando.github.io•22 issues in zalando/zalando.github.io•00 pull requests in zalando/zalando.github.io•Updated Jul 25, 2026Jul 25, 2026

• problem

  Public
  A Java library that implements application/problem+json

  javajsonmicroservices+ 4

  javajsonmicroservicesexceptionerrorproblemrfc7807

  Java

  •

  MIT License

  •9999 forks in zalando/problem•952952 stars in zalando/problem•1010 issues in zalando/problem•1414 pull requests in zalando/problem•Updated Jul 24, 2026Jul 24, 2026

• spring-cloud-config-aws-kms

  Public
  Spring Cloud AWS add-on that provides encryption via AWS KMS

  javaawscloud+ 7

  javaawscloudspringspring-bootaws-kmsspring-cloudspring-boot-starterspring-cloud-awsspring-boot-3

  Java

  •

  Apache License 2.0

  •3434 forks in zalando/spring-cloud-config-aws-kms•112112 stars in zalando/spring-cloud-config-aws-kms•00 issues in zalando/spring-cloud-config-aws-kms•66 pull requests in zalando/spring-cloud-config-aws-kms•Updated Jun 17, 2026Jun 17, 2026

• lightstep-uql-to-promql-translator

  Public
  Go

  •

  MIT License

  •00 forks in zalando/lightstep-uql-to-promql-translator•99 stars in zalando/lightstep-uql-to-promql-translator•00 issues in zalando/lightstep-uql-to-promql-translator•00 pull requests in zalando/lightstep-uql-to-promql-translator•Updated May 11, 2026May 11, 2026

• problem-spring-web

  Public
  A library for handling Problems in Spring Web MVC

  javajsonweb+ 7

  javajsonwebspringspring-bootmicroserviceexceptionerrorproblemrfc7807

  Java

  •

  MIT License

  •133133 forks in zalando/problem-spring-web•1.1k1.1k stars in zalando/problem-spring-web•3434 issues in zalando/problem-spring-web•1818 pull requests in zalando/problem-spring-web•Updated Mar 23, 2026Mar 23, 2026

• otelcol-lightstep-receiver

  Public
  Go

  •

  MIT License

  •55 forks in zalando/otelcol-lightstep-receiver•88 stars in zalando/otelcol-lightstep-receiver•11 issue in zalando/otelcol-lightstep-receiver•33 pull requests in zalando/otelcol-lightstep-receiver•Updated Mar 10, 2026Mar 10, 2026

• sans

  Public
  Zalando Sans – Zalando's open source variable brand font family

  fonttypographysans-serif

  fonttypographysans-serif

  Python

  •

  SIL Open Font License 1.1

  •22 forks in zalando/sans•7474 stars in zalando/sans•77 issues in zalando/sans•00 pull requests in zalando/sans•Updated Mar 10, 2026Mar 10, 2026

• backstage-plugin-api-linter

  Public
  API Linter is a quality assurance tool that checks the compliance of API's specifications to Zalando's API rules.

  TypeScript

  •

  MIT License

  •22 forks in zalando/backstage-plugin-api-linter•1717 stars in zalando/backstage-plugin-api-linter•22 issues in zalando/backstage-plugin-api-linter•00 pull requests in zalando/backstage-plugin-api-linter•Updated Jan 8, 2026Jan 8, 2026

• intellij-swagger

  Public
  A plugin to help you easily edit Swagger and OpenAPI specification files inside IntelliJ IDEA

  javautilitiesintellij+ 3

  javautilitiesintellijswaggeropenapiswagger-plugin

  Java

  •

  MIT License

  •7777 forks in zalando/intellij-swagger•1.2k1.2k stars in zalando/intellij-swagger•3939 issues in zalando/intellij-swagger•66 pull requests in zalando/intellij-swagger•Updated Sep 30, 2025Sep 30, 2025

• rds-health

  Public
  discover anomalies, performance issues and optimization within AWS RDS

  health-checkaws-rdsaws-rds-postgres+ 2

  health-checkaws-rdsaws-rds-postgresaws-rds-auroracloud-observability

  Go

  •

  MIT License

  •55 forks in zalando/rds-health•3939 stars in zalando/rds-health•66 issues in zalando/rds-health•11 pull request in zalando/rds-health•Updated Aug 20, 2025Aug 20, 2025

• faux-pas

  Public
  A library that simplifies error handling for Functional Programming in Java

  javamonitoringfunctional-programming+ 3

  javamonitoringfunctional-programmingerror-handlingexception-handlingcompletable-future

  Java

  •

  MIT License

  •1515 forks in zalando/faux-pas•144144 stars in zalando/faux-pas•22 issues in zalando/faux-pas•1010 pull requests in zalando/faux-pas•Updated Jun 30, 2025Jun 30, 2025

• jackson-datatype-money

  Public archive
  Extension module to properly support datatypes of javax.money

  javamoneyjson+ 4

  javamoneyjsonmicroservicescurrencyjacksonmonetary

  Java

  •

  MIT License

  •4646 forks in zalando/jackson-datatype-money•262262 stars in zalando/jackson-datatype-money•11 issue in zalando/jackson-datatype-money•1010 pull requests in zalando/jackson-datatype-money•Updated Jun 27, 2025Jun 27, 2025

• opentracing-toolbox

  Public archive
  Best-of-breed OpenTracing utilities, instrumentations and extensions

  javahttpmonitoring+ 4

  javahttpmonitoringtracingspring-boot-starterplugin-extensionhttp-headers

  Java

  •

  MIT License

  •4646 forks in zalando/opentracing-toolbox•180180 stars in zalando/opentracing-toolbox•22 issues in zalando/opentracing-toolbox•1111 pull requests in zalando/opentracing-toolbox•Updated Jun 25, 2025Jun 25, 2025

• zappr

  Public archive
  An agent that enforces guidelines for your GitHub repositories

  githubagentintegration+ 3

  githubagentintegrationrepositoryguidelinesdeveloper-infrastructure

  JavaScript

  •

  Other

  •6161 forks in zalando/zappr•538538 stars in zalando/zappr•2626 issues in zalando/zappr•3737 pull requests in zalando/zappr•Updated Aug 27, 2024Aug 27, 2024

• zmon

  Public
  Real-time monitoring of critical metrics & KPIs via elegant dashboards, Grafana3 visualizations & more

  monitoringmetrics

  monitoringmetrics

  Shell

  •

  Other

  •4545 forks in zalando/zmon•356356 stars in zalando/zmon•66 issues in zalando/zmon•22 pull requests in zalando/zmon•Updated Jun 28, 2024Jun 28, 2024

• nakadi

  Public archive
  A distributed event bus that implements a RESTful API abstraction on top of Kafka-like queues

  javamicroserviceskafka+ 6

  javamicroserviceskafkarestfulpostgresqlapisjava-8event-busdata-infrastructure

  Java

  •

  MIT License

  •290290 forks in zalando/nakadi•965965 stars in zalando/nakadi•3636 issues in zalando/nakadi•1010 pull requests in zalando/nakadi•Updated Apr 11, 2024Apr 11, 2024

• beard

  Public archive
  A lightweight, logicless templating engine, written in Scala and inspired by Mustache

  web

  web

  Scala

  •

  Other

  •2828 forks in zalando/beard•123123 stars in zalando/beard•00 issues in zalando/beard•00 pull requests in zalando/beard•Updated Nov 13, 2023Nov 13, 2023

• expan

  Public
  Open-source Python library for statistical analysis of randomised control trials (A/B tests)

  pythonstatisticsstatistical-analysis+ 5

  pythonstatisticsstatistical-analysisexperimentationab-testingabtestingcausal-inferenceabtest

  Python

  •

  MIT License

  •5050 forks in zalando/expan•344344 stars in zalando/expan•2727 issues in zalando/expan•33 pull requests in zalando/expan•Updated Apr 11, 2023Apr 11, 2023