[Github Ranking](../README.md)
==========

## Top 100 Stars in Scala

| Ranking | Project Name | Stars | Forks | Language | Open Issues | Description | Last Commit |
| ------- | ------------ | ----- | ----- | -------- | ----------- | ----------- | ----------- |
| 1 | [the-algorithm](https://github.com/twitter/the-algorithm) | 60691 | 12245 | Scala | 211 | Source code for Twitter's Recommendation Algorithm | 2024-01-19T06:16:09Z |
| 2 | [spark](https://github.com/apache/spark) | 37631 | 28174 | Scala | 0 | Apache Spark - A unified analytics engine for large-scale data processing | 2024-01-21T02:53:24Z |
| 3 | [prisma1](https://github.com/prisma/prisma1) | 16614 | 899 | Scala | 2 | 💾 Database Tools incl. ORM, Migrations and Admin UI (Postgres, MySQL & MongoDB) [deprecated] | 2022-09-01T18:57:41Z |
| 4 | [lila](https://github.com/lichess-org/lila) | 14242 | 2103 | Scala | 882 | ♞ lichess.org: the forever free, adless and open source chess server ♞ | 2024-01-20T22:15:37Z |
| 5 | [scala](https://github.com/scala/scala) | 14236 | 3193 | Scala | 0 | Scala 2 compiler and standard library. Bugs at https://github.com/scala/bug; Scala 3 at https://github.com/lampepfl/dotty | 2024-01-19T10:37:54Z |
| 6 | [akka](https://github.com/akka/akka) | 12858 | 3625 | Scala | 845 | Build highly concurrent, distributed, and resilient message-driven applications on the JVM | 2024-01-19T16:54:33Z |
| 7 | [predictionio](https://github.com/apache/predictionio) | 12558 | 2003 | Scala | 0 | PredictionIO, a machine learning server for developers and ML engineers. | 2021-01-09T10:30:58Z |
| 8 | [playframework](https://github.com/playframework/playframework) | 12474 | 4127 | Scala | 412 | The Community Maintained High Velocity Web Framework For Java and Scala. | 2024-01-16T11:52:20Z |
| 9 | [CMAK](https://github.com/yahoo/CMAK) | 11614 | 2514 | Scala | 494 | CMAK is a tool for managing Apache Kafka clusters | 2023-08-02T19:26:23Z |
| 10 | [bfg-repo-cleaner](https://github.com/rtyley/bfg-repo-cleaner) | 10419 | 556 | Scala | 251 | Removes large or troublesome blobs like git-filter-branch does, but faster. And written in Scala | 2023-11-19T02:33:59Z |
| 11 | [gitbucket](https://github.com/gitbucket/gitbucket) | 9020 | 1261 | Scala | 312 | A Git platform powered by Scala with easy installation, high extensibility & GitHub API compatibility | 2024-01-19T04:05:47Z |
| 12 | [finagle](https://github.com/twitter/finagle) | 8724 | 1478 | Scala | 55 | A fault tolerant, protocol-agnostic RPC system | 2024-01-17T12:17:49Z |
| 13 | [snowflake](https://github.com/twitter-archive/snowflake) | 7529 | 1151 | Scala | 2 | Snowflake is a network service for generating unique ID numbers at high scale with some simple guarantees. | 2020-07-22T18:08:14Z |
| 14 | [snowplow](https://github.com/snowplow/snowplow) | 6674 | 1225 | Scala | 57 | The enterprise-grade behavioral data engine (web, mobile, server-side, webhooks), running cloud-natively on AWS and GCP | 2024-01-15T15:03:53Z |
| 15 | [ArnoldC](https://github.com/lhartikk/ArnoldC) | 6663 | 301 | Scala | 71 | Arnold Schwarzenegger based programming language | 2023-09-13T08:46:01Z |
| 16 | [openwhisk](https://github.com/apache/openwhisk) | 6282 | 1176 | Scala | 362 | Apache OpenWhisk is an open source serverless cloud platform | 2024-01-20T09:42:33Z |
| 17 | [gatling](https://github.com/gatling/gatling) | 6164 | 1178 | Scala | 44 | Modern Load Testing as Code | 2024-01-19T11:21:04Z |
| 18 | [frontend](https://github.com/guardian/frontend) | 5738 | 566 | Scala | 90 | The Guardian DotCom. | 2024-01-20T17:32:11Z |
| 19 | [fpinscala](https://github.com/fpinscala/fpinscala) | 5619 | 3046 | Scala | 79 | Code, exercises, answers, and hints to go along with the book "Functional Programming in Scala" | 2023-11-25T05:58:57Z |
| 20 | [dotty](https://github.com/lampepfl/dotty) | 5509 | 1001 | Scala | 1235 | The Scala 3 compiler, also known as Dotty. | 2024-01-20T22:25:51Z |
| 21 | [linkerd](https://github.com/linkerd/linkerd) | 5355 | 518 | Scala | 134 | Old repo for Linkerd 1.x. See the linkerd2 repo for Linkerd   2.x. | 2023-03-04T18:59:40Z |
| 22 | [cats](https://github.com/typelevel/cats) | 5107 | 1256 | Scala | 196 | Lightweight, modular, and extensible library for functional programming. | 2024-01-20T11:39:16Z |
| 23 | [SynapseML](https://github.com/microsoft/SynapseML) | 4906 | 828 | Scala | 296 | Simple and Distributed Machine Learning | 2024-01-19T02:04:41Z |
| 24 | [aerosolve](https://github.com/airbnb/aerosolve) | 4798 | 589 | Scala | 6 | A machine learning package built for humans. | 2021-09-01T22:02:29Z |
| 25 | [sbt](https://github.com/sbt/sbt) | 4736 | 937 | Scala | 755 | sbt, the interactive build tool | 2024-01-20T19:11:18Z |
| 26 | [scalaz](https://github.com/scalaz/scalaz) | 4648 | 726 | Scala | 126 | Principled Functional Programming in Scala | 2024-01-20T06:25:13Z |
| 27 | [scala-js](https://github.com/scala-js/scala-js) | 4510 | 434 | Scala | 29 | Scala.js, the Scala to JavaScript compiler | 2024-01-07T16:17:23Z |
| 28 | [scala-native](https://github.com/scala-native/scala-native) | 4405 | 361 | Scala | 218 | Your favorite language gets closer to bare metal. | 2024-01-20T21:45:12Z |
| 29 | [chronos](https://github.com/mesos/chronos) | 4369 | 541 | Scala | 209 | Fault tolerant job scheduler for Mesos which handles dependencies and ISO8601 based schedules | 2022-06-29T19:43:36Z |
| 30 | [XiangShan](https://github.com/OpenXiangShan/XiangShan) | 4175 | 575 | Scala | 36 | Open-source high-performance RISC-V processor | 2024-01-19T10:52:54Z |
| 31 | [marathon](https://github.com/mesosphere/marathon) | 4071 | 870 | Scala | 27 | Deploy and manage containers (including Docker) on top of Apache Mesos at scale. | 2022-09-08T05:13:23Z |
| 32 | [zio](https://github.com/zio/zio) | 3940 | 1236 | Scala | 357 | ZIO — A type-safe, composable library for async and concurrent programming in Scala | 2024-01-19T20:29:26Z |
| 33 | [diffy](https://github.com/twitter-archive/diffy) | 3826 | 379 | Scala | 0 | Find potential bugs in your services with Diffy | 2020-07-01T19:13:06Z |
| 34 | [chisel](https://github.com/chipsalliance/chisel) | 3584 | 555 | Scala | 276 | Chisel: A Modern Hardware Design Language | 2024-01-20T20:27:44Z |
| 35 | [spark-nlp](https://github.com/JohnSnowLabs/spark-nlp) | 3569 | 693 | Scala | 35 | State of the Art Natural Language Processing | 2024-01-20T17:38:19Z |
| 36 | [scalding](https://github.com/twitter/scalding) | 3464 | 717 | Scala | 287 | A Scala API for Cascading | 2023-05-28T19:18:59Z |
| 37 | [CoolplaySpark](https://github.com/lw-lin/CoolplaySpark) | 3435 | 1424 | Scala | 31 | 酷玩 Spark: Spark 源代码解析、Spark 类库等 | 2022-05-18T08:55:54Z |
| 38 | [breeze](https://github.com/scalanlp/breeze) | 3426 | 703 | Scala | 87 | Breeze is a numerical processing library for Scala. | 2024-01-13T07:42:32Z |
| 39 | [atlas](https://github.com/Netflix/atlas) | 3363 | 284 | Scala | 23 | In-memory dimensional time series database. | 2024-01-11T13:32:32Z |
| 40 | [shapeless](https://github.com/milessabin/shapeless) | 3348 | 537 | Scala | 28 | Generic programming for Scala | 2024-01-20T16:54:21Z |
| 41 | [flockdb](https://github.com/twitter-archive/flockdb) | 3323 | 272 | Scala | 0 | A distributed, fault-tolerant graph database | 2017-03-16T23:11:18Z |
| 42 | [shadowsocksr-v2ray-trojan-android](https://github.com/xxf098/shadowsocksr-v2ray-trojan-android) | 3126 | 386 | Scala | 88 | A simple client for Android | 2023-07-29T10:01:34Z |
| 43 | [TheHive](https://github.com/TheHive-Project/TheHive) | 3121 | 598 | Scala | 803 | TheHive: a Scalable, Open Source and Free Security Incident Response Platform | 2022-12-05T09:47:50Z |
| 44 | [deequ](https://github.com/awslabs/deequ) | 3046 | 516 | Scala | 124 | Deequ is a library built on top of Apache Spark for defining "unit tests for data", which measure data quality in large datasets. | 2024-01-15T02:36:01Z |
| 45 | [rocket-chip](https://github.com/chipsalliance/rocket-chip) | 2915 | 1054 | Scala | 208 | Rocket Chip Generator | 2024-01-20T21:24:52Z |
| 46 | [spark-jobserver](https://github.com/spark-jobserver/spark-jobserver) | 2841 | 1014 | Scala | 107 | REST job server for Apache Spark | 2023-12-26T03:20:19Z |
| 47 | [kestrel](https://github.com/twitter-archive/kestrel) | 2785 | 325 | Scala | 24 | simple, distributed message queue system (inactive) | 2016-01-22T07:54:28Z |
| 48 | [Spark-The-Definitive-Guide](https://github.com/databricks/Spark-The-Definitive-Guide) | 2699 | 2701 | Scala | 24 | Spark: The Definitive Guide's Code Repository | 2020-08-26T08:17:35Z |
| 49 | [util](https://github.com/twitter/util) | 2676 | 602 | Scala | 4 | Wonderful reusable code from Twitter | 2023-12-21T23:16:39Z |
| 50 | [lagom](https://github.com/lagom/lagom) | 2639 | 639 | Scala | 444 | Reactive Microservices for the JVM | 2023-08-14T13:43:48Z |
| 51 | [slick](https://github.com/slick/slick) | 2632 | 618 | Scala | 395 | Slick (Scala Language Integrated Connection Kit) is a modern database query and access library for Scala | 2024-01-19T08:04:07Z |
| 52 | [scalatra](https://github.com/scalatra/scalatra) | 2628 | 343 | Scala | 61 | Tiny Scala high-performance, async web framework, inspired by Sinatra | 2024-01-20T13:04:37Z |
| 53 | [scala-exercises](https://github.com/scala-exercises/scala-exercises) | 2615 | 555 | Scala | 47 | The easy way to learn Scala. | 2023-05-16T11:59:48Z |
| 54 | [Ammonite](https://github.com/com-lihaoyi/Ammonite) | 2574 | 366 | Scala | 122 | Scala Scripting | 2023-11-26T22:44:23Z |
| 55 | [wire-android_legacy](https://github.com/wireapp/wire-android_legacy) | 2564 | 499 | Scala | 0 | Deprecated! - :phone: Wire for Android | 2023-11-21T15:50:59Z |
| 56 | [node2vec](https://github.com/aditya-grover/node2vec) | 2558 | 914 | Scala | 82 | None | 2022-07-21T14:37:25Z |
| 57 | [spray](https://github.com/spray/spray) | 2522 | 578 | Scala | 69 | A suite of scala libraries for building and consuming RESTful web services on top of Akka: lightweight, asynchronous, non-blocking, actor-based, testable | 2017-02-21T11:03:37Z |
| 58 | [scio](https://github.com/spotify/scio) | 2507 | 515 | Scala | 123 | A Scala API for Apache Beam and Google Cloud Dataflow. | 2024-01-20T19:42:45Z |
| 59 | [http4s](https://github.com/http4s/http4s) | 2482 | 795 | Scala | 233 | A minimal, idiomatic Scala interface for HTTP | 2024-01-20T20:17:49Z |
| 60 | [circe](https://github.com/circe/circe) | 2455 | 536 | Scala | 120 | Yet another JSON library for Scala | 2024-01-20T15:38:11Z |
| 61 | [elasticmq](https://github.com/softwaremill/elasticmq) | 2349 | 194 | Scala | 25 | In-memory message queue with an Amazon SQS-compatible interface. Runs stand-alone or embedded. | 2024-01-20T11:24:07Z |
| 62 | [fs2](https://github.com/typelevel/fs2) | 2290 | 593 | Scala | 77 | Compositional, streaming I/O library for Scala | 2024-01-20T17:14:04Z |
| 63 | [algebird](https://github.com/twitter/algebird) | 2274 | 355 | Scala | 72 | Abstract Algebra for Scala | 2024-01-13T13:49:23Z |
| 64 | [finatra](https://github.com/twitter/finatra) | 2268 | 420 | Scala | 13 | Fast, testable, Scala services built on TwitterServer and Finagle | 2023-11-02T09:53:58Z |
| 65 | [gizzard](https://github.com/twitter-archive/gizzard) | 2255 | 219 | Scala | 0 | [Archived] A flexible sharding framework for creating eventually-consistent distributed datastores | 2017-03-16T23:21:54Z |
| 66 | [s3_website](https://github.com/laurilehmijoki/s3_website) | 2252 | 193 | Scala | 71 | Manage an S3 website: sync, deliver via CloudFront, benefit from advanced S3 website features. | 2023-03-23T05:42:25Z |
| 67 | [TransmogrifAI](https://github.com/salesforce/TransmogrifAI) | 2222 | 402 | Scala | 35 | TransmogrifAI (pronounced trăns-mŏgˈrə-fī) is an AutoML library for building modular, reusable, strongly typed machine learning workflows on Apache Spark with minimal hand-tuning | 2023-09-29T22:18:41Z |
| 68 | [summingbird](https://github.com/twitter/summingbird) | 2137 | 271 | Scala | 148 | Streaming MapReduce with Scalding and Storm | 2022-01-19T17:31:02Z |
| 69 | [zio-quill](https://github.com/zio/zio-quill) | 2135 | 347 | Scala | 272 | Compile-time Language Integrated Queries for Scala | 2024-01-20T00:11:30Z |
| 70 | [doobie](https://github.com/tpolecat/doobie) | 2107 | 353 | Scala | 140 | Functional JDBC layer for Scala. | 2024-01-20T20:08:24Z |
| 71 | [scaloid](https://github.com/pocorall/scaloid) | 2095 | 168 | Scala | 17 | Scaloid makes your Android code easy to understand and maintain. | 2018-08-07T08:10:53Z |
| 72 | [SZT-bigdata](https://github.com/geekyouth/SZT-bigdata) | 2064 | 604 | Scala | 13 | 深圳地铁大数据客流分析系统🚇🚄🌟 | 2024-01-13T14:49:46Z |
| 73 | [coursier](https://github.com/coursier/coursier) | 1992 | 306 | Scala | 338 | Pure Scala Artifact Fetching | 2024-01-20T14:32:25Z |
| 74 | [metals](https://github.com/scalameta/metals) | 1980 | 313 | Scala | 233 | Scala language server with rich IDE features 🚀  | 2024-01-20T11:32:16Z |
| 75 | [textteaser](https://github.com/MojoJolo/textteaser) | 1972 | 296 | Scala | 6 | TextTeaser is an automatic summarization algorithm. | 2018-02-07T06:42:57Z |
| 76 | [flix](https://github.com/flix/flix) | 1970 | 135 | Scala | 433 | The Flix Programming Language | 2024-01-20T18:07:43Z |
| 77 | [sangria](https://github.com/sangria-graphql/sangria) | 1959 | 223 | Scala | 53 | Scala GraphQL implementation | 2024-01-20T18:47:16Z |
| 78 | [metarank](https://github.com/metarank/metarank) | 1948 | 79 | Scala | 91 | A low code Machine Learning personalized ranking service for articles, listings, search results, recommendations that boosts user engagement. A friendly Learn-to-Rank engine | 2024-01-20T23:08:18Z |
| 79 | [mill](https://github.com/com-lihaoyi/mill) | 1938 | 325 | Scala | 110 | Your shiny new Java/Scala build tool! | 2024-01-18T21:16:52Z |
| 80 | [spark-cassandra-connector](https://github.com/datastax/spark-cassandra-connector) | 1929 | 928 | Scala | 0 | DataStax Connector for Apache Spark to Apache Cassandra | 2024-01-19T17:11:25Z |
| 81 | [monix](https://github.com/monix/monix) | 1917 | 255 | Scala | 83 | Asynchronous, Reactive Programming for Scala and Scala.js. | 2024-01-20T17:15:55Z |
| 82 | [scalacheck](https://github.com/typelevel/scalacheck) | 1913 | 411 | Scala | 52 | Property-based testing for Scala | 2024-01-19T20:33:11Z |
| 83 | [cats-effect](https://github.com/typelevel/cats-effect) | 1903 | 496 | Scala | 161 | The pure asynchronous runtime for Scala | 2024-01-20T18:26:50Z |
| 84 | [feathr](https://github.com/feathr-ai/feathr) | 1892 | 257 | Scala | 140 | Feathr – A scalable, unified data and AI engineering platform for enterprise | 2024-01-10T10:29:57Z |
| 85 | [kyuubi](https://github.com/apache/kyuubi) | 1846 | 839 | Scala | 361 | Apache Kyuubi is a distributed and multi-tenant gateway to provide serverless SQL on data warehouses and lakehouses. | 2024-01-20T00:01:17Z |
| 86 | [byzer-lang](https://github.com/byzer-org/byzer-lang) | 1800 | 553 | Scala | 110 | Byzer (former MLSQL): A low-code open-source programming language for data pipeline, analytics and AI. | 2023-09-18T19:21:13Z |
| 87 | [graphcool-framework](https://github.com/Graphcool/graphcool-framework) | 1781 | 131 | Scala | 498 | None | 2020-09-04T16:57:58Z |
| 88 | [spire](https://github.com/typelevel/spire) | 1753 | 249 | Scala | 131 | Powerful new number types and numeric abstractions for Scala. | 2024-01-19T20:13:38Z |
| 89 | [giter8](https://github.com/foundweekends/giter8) | 1723 | 230 | Scala | 45 | a command line tool to apply templates defined on GitHub  | 2024-01-12T14:14:43Z |
| 90 | [joern](https://github.com/joernio/joern) | 1675 | 231 | Scala | 270 | Open-source code analysis platform for C/C++/Java/Binary/Javascript/Python/Kotlin based on code property graphs. Discord https://discord.gg/vv4MH284Hc | 2024-01-20T07:26:57Z |
| 91 | [refined](https://github.com/fthomas/refined) | 1664 | 158 | Scala | 61 | Refinement types for Scala | 2024-01-20T15:36:46Z |
| 92 | [elastic4s](https://github.com/sksamuel/elastic4s) | 1629 | 695 | Scala | 22 | Elasticsearch Scala Client - Reactive, Non Blocking, Type Safe, HTTP Client | 2024-01-18T20:20:14Z |
| 93 | [Monocle](https://github.com/optics-dev/Monocle) | 1622 | 203 | Scala | 47 | Optics library for Scala | 2024-01-20T18:29:03Z |
| 94 | [scalajs-react](https://github.com/japgolly/scalajs-react) | 1620 | 242 | Scala | 26 | Facebook's React on Scala.JS | 2023-09-04T21:20:27Z |
| 95 | [Vale](https://github.com/ValeLang/Vale) | 1611 | 54 | Scala | 242 | Compiler for the Vale programming language - http://vale.dev/ | 2023-12-19T18:02:41Z |
| 96 | [finch](https://github.com/finagle/finch) | 1596 | 227 | Scala | 38 | Scala combinator library for building Finagle HTTP services | 2024-01-16T16:36:33Z |
| 97 | [Binding.scala](https://github.com/ThoughtWorksInc/Binding.scala) | 1583 | 108 | Scala | 37 | Reactive data-binding for Scala | 2024-01-21T00:07:08Z |
| 98 | [sbt-native-packager](https://github.com/sbt/sbt-native-packager) | 1583 | 445 | Scala | 135 | sbt Native Packager | 2024-01-12T18:30:42Z |
| 99 | [almond](https://github.com/almond-sh/almond) | 1559 | 242 | Scala | 113 | A Scala kernel for Jupyter | 2024-01-12T12:57:00Z |
| 100 | [twitter-server](https://github.com/twitter/twitter-server) | 1531 | 274 | Scala | 0 | Twitter-Server defines a template from which services at Twitter are built | 2023-11-10T15:18:22Z |