197 open source projects written in Java

01 mall ★ 85K

mall项目是一套电商系统，包括前台商城系统及后台管理系统，基于Spring Boot+MyBatis实现，采用Docker容器化部署。 前台商城系统包含首页门户、商品推荐、商品搜索、商品展示、购物车、订单流程、会员中心、客户服务、帮助中心等模块。 后台管理系统包含商品管理、订单管理、会员管理、促销管理、运营管理、内容

02 Elasticsearch ★ 78K

The leading distributed search and analytics engine

03 DBeaver ★ 52K

Free database manager for SQL databases and beyond

04 JeecgBoot ★ 48K

【低代码v2.0，一句话即可生成整个系统】企业级AI低代码平台，一键生成前后端代码甚至整个系统。 AI Skills 一句话画流程、设计表单、生成报表、大屏。内置 AI应用平台涵盖：AI聊天、知识库、流程编排、MCP插件等，兼容主流大模型。引领AI低代码「Skills 生成 → 在线配置 → 代码生成 → 手工合并->

05 halo ★ 40K

Halo 是一款强大易用的开源建站工具，从个人博客、知识库，到企业官网、在线商城，Halo 都能助您轻松实现，一站式满足您的多样化建站需求。

06 Keycloak ★ 38K

Secure authentication and access control made simple

07 selenium ★ 35K

A browser automation framework and ecosystem.

08 kafka ★ 34K

Apache Kafka - A distributed event streaming platform

09 conductor ★ 32K

Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents

10 xxl-job ★ 31K

A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）

11 Kestra ★ 30K

Declarative workflow orchestration for data, AI, and infra

12 Chat2DB ★ 28K

Transform natural language into SQL queries with AI

13 floci ★ 28K

Light, fluffy, and always free - The AWS Local Emulator alternative

14 openapi-generator ★ 27K

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec

15 jenkins ★ 27K

Jenkins automation server

16 libgdx ★ 26K

Desktop/Android/HTML5/iOS Java game development framework

17 Apache SkyWalking ★ 25K

Distributed tracing, metrics, logs, and GenAI monitoring in one

18 dataease ★ 25K

🔥 人人可用的开源 BI 工具，数据可视化神器。An open-source BI tool alternative to Tableau.

19 redisson ★ 24K

Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set,

20 shardingsphere ★ 21K

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

21 DoKit ★ 20K

一款面向泛前端产品研发全生命周期的效率平台。

22 Sa-Token ★ 19K

✨ 开源、免费、一站式 Java 权限认证框架，让鉴权变得简单、优雅！—— 登录认证、权限认证、分布式 Session 会话、微服务网关鉴权、SSO 单点登录、OAuth2.0 统一认证、jwt 集成、API Key 秘钥授权、API 参数签名

23 QuestDB ★ 17K

High-performance time-series database for massive data scale

24 mybatis-plus ★ 17K

An powerful enhanced toolkit of MyBatis for simplify development

25 zipkin ★ 17K

Zipkin is a distributed tracing system

26 neo4j ★ 17K

Graphs for Everyone

27 doris ★ 16K

Apache Doris is a real-time analytics and hybrid search database for AI agents.

28 SuperTokens ★ 15K

Secure, customizable authentication for your applications

29 onedev ★ 15K

The Unified and Autonomous Development Platform

30 LanguageTool ★ 15K

AI-powered grammar checker for 30+ languages

31 Logstash ★ 15K

Centralize, transform, and stash your data

32 dolphinscheduler ★ 15K

Apache DolphinScheduler is the modern data orchestration platform. Agile to create high performance workflow with low-code

33 Apache Druid ★ 14K

Real-time analytics database for sub-second OLAP queries

34 OpenSearch ★ 14K

Open-source search and analytics at enterprise scale

35 pinpoint ★ 14K

APM, (Application Performance Management) tool for large-scale distributed systems.

36 Aegis Authenticator ★ 13K

2FA token manager for Android with encrypted vault

37 trino ★ 13K

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

38 langchain4j ★ 13K

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and v

39 debezium ★ 13K

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

40 mall-swarm ★ 13K

mall-swarm是一套微服务商城系统，采用了 Spring Cloud Alibaba、Spring Boot 3.5、Sa-Token、MyBatis、Elasticsearch、Docker、Kubernetes等核心技术，同时提供了基于Vue的管理后台方便快速搭建系统。mall-swarm在电商业务的基础集成

41 zookeeper ★ 13K

Apache ZooKeeper

42 jedis ★ 12K

Redis Java client

43 starrocks ★ 12K

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRock

44 webmagic ★ 12K

A scalable web crawler framework for Java.

45 jsoup ★ 11K

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

46 cas ★ 11K

Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

47 AutoMQ ★ 11K

S3-based serverless Kafka reinvented for cost efficiency

48 resilience4j ★ 11K

Resilience4j is a fault tolerance library designed for Java8 and functional programming

49 flyway ★ 10K

Flyway by Redgate • Database Migrations Made Easy.

50 cassandra ★ 10K

Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising

51 seatunnel ★ 9.8K

SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.

52 flowable-engine ★ 9.6K

A compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users.

53 karate ★ 9.0K

Test Automation Made Simple

54 astron-agent ★ 9.0K

Enterprise-grade, commercial-friendly agentic workflow platform for building next-generation SuperAgents.

55 shenyu ★ 8.9K

Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.

56 so-novel ★ 8.9K

小说下载｜网文下载 | 网络小说

57 transmittable-thread-local ★ 8.3K

📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even

58 shardingsphere-elasticjob ★ 8.2K

Distributed scheduled job

59 DependencyCheck ★ 7.8K

OWASP dependency-check is a software composition analysis utility that detects publicly disclosed vulnerabilities in application dependencies.

60 swagger-core ★ 7.5K

Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API

61 hertzbeat ★ 7.5K

An AI-powered next-generation open source real-time observability system.

62 gocd ★ 7.4K

GoCD - Continuous Delivery server main repository

63 wiremock ★ 7.4K

A tool for mocking HTTP services

64 zeppelin ★ 6.7K

Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.

65 flink-cdc ★ 6.5K

Flink CDC is a streaming data integration tool

66 hibernate-orm ★ 6.5K

Idiomatic persistence for Java and relational databases

67 Apache IoTDB ★ 6.4K

Time-series database built for industrial IoT workloads

68 Apache Pinot ★ 6.2K

Distributed OLAP database for real-time analytics at scale

69 OSMAnd ★ 6.1K

Navigate anywhere with detailed offline maps and GPS

70 btrace ★ 6.0K

Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.

71 JSqlParser ★ 6.0K

JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern

72 ruoyi-ai ★ 5.8K

An enterprise AI development framework for building AI agents. It provides unified management of multi-provider LLMs, secure enterprise knowledge bases with hig

73 lettuce ★ 5.8K

Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.

74 jetcache ★ 5.6K

JetCache is a Java cache framework.

75 Infinity-For-Reddit ★ 5.5K

A Reddit client for Android

76 thumbnailator ★ 5.4K

Thumbnailator - a thumbnail generation library for Java

77 skillhub ★ 5.4K

Self-hosted, open-source agent skill registry for enterprises. Publish & version skill packages, govern with RBAC and audit logs, deploy on-premise with Docke

78 oshi ★ 5.3K

Native Operating System and Hardware Information

79 wgcloud ★ 5.2K

Linux运维监控工具，支持系统硬件信息，内存，CPU，温度，磁盘空间及IO，硬盘smart，GPU，防火墙，网络流量速率等监控，服务接口监测，大屏展示，拓扑图，端口监控，进程监控，docker监控，日志监控，文件防篡改，数据库监控，指令批量下发执行，web ssh，Linux面板(探针)，告警，SNMP监测，K8S，

80 mockserver-monorepo ★ 5.0K

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1,

81 orientdb ★ 5.0K

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distribut

82 spring-cloud-gateway ★ 4.9K

An API Gateway built on Spring Framework and Spring Boot providing routing and more.

83 micrometer ★ 4.9K

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.

84 cyberduck ★ 4.9K

Cyberduck is a libre FTP, SFTP, WebDAV, Amazon S3, Backblaze B2, Microsoft Azure & OneDrive and OpenStack Swift file transfer client for Mac and Windows.

85 grimmory ★ 4.6K

A self-hosted library for your ebooks, comics, and audiobooks

86 CrateDB ★ 4.5K

Scalable SQL database for real-time analytics

87 freeplane ★ 4.4K

Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way.

88 lilishop ★ 4.3K

Java 开源商城系统，基于 Spring Boot / Spring Cloud / Vue / Uniapp 的 B2B2C 多商户商城源码，支持小程序商城、微服务、分销、直播、秒杀、Docker 私有化部署。

89 chunjun ★ 4.1K

A data integration framework

90 Terasology ★ 3.9K

Terasology - open source voxel world

91 liteflow ★ 3.9K

Lightweight, fast, stable, programmable component-based rule engine — where AI Agents orchestrate just like ordinary components. Uniquely designed DSL: componen

92 atmosphere ★ 3.8K

Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human

93 springdoc-openapi ★ 3.7K

Library for OpenAPI 3 with spring-boot

94 proguard ★ 3.7K

ProGuard, Java optimizer and obfuscator

95 kubernetes-client ★ 3.7K

Java client for Kubernetes & OpenShift

96 light-4j ★ 3.7K

A fast, lightweight and more productive microservices framework

97 logging-log4j2 ★ 3.6K

Apache Log4j is a versatile, feature-rich, efficient logging API and backend for Java.

98 MyPerf4J ★ 3.6K

High performance Java APM. Powered by ASM. Try it. Test it. If you feel its better, use it.

99 jmx_exporter ★ 3.3K

A process for collecting metrics using JMX MBeans for Prometheus consumption

100 paicoding ★ 3.2K

⭐️一款好用又强大的开源社区，基于 Spring Boot、MyBatis-Plus、MySQL、Redis、ElasticSearch、MongoDB、Docker、RabbitMQ 等主流技术栈，附详细教程，包括Java、Spring、MySQL、Redis、微服务&分布式、消息队列等核心知识点。学编程，就上技术派

101 hugegraph ★ 3.2K

A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends)

102 netbeans ★ 3.1K

Apache NetBeans

103 cloudstack ★ 3.1K

Apache CloudStack is an opensource Infrastructure as a Service (IaaS) cloud computing platform

104 Openfire ★ 3.1K

An XMPP server licensed under the Open Source Apache License.

105 javamelody ★ 3.0K

JavaMelody : monitoring of JavaEE applications

106 symphony ★ 3.0K

🎶 一款用 Java 实现的现代化社区（论坛/问答/BBS/社交网络/博客）系统平台。A modern community (forum/Q&A/BBS/SNS/blog) system platform implemented in Java. https://ld246.com

107 RedReader ★ 2.7K

An unofficial open source Android app for Reddit.

108 UniversalMediaServer ★ 2.7K

A DLNA, UPnP and HTTP(S) Media Server.

109 Peergos ★ 2.5K

Secure, private, and decentralized file storage

110 pac4j ★ 2.5K

Security engine for Java (authentication, authorization, multi frameworks): OpenID Connect, SAML2, CAS, OAuth, LDAP, JWT...

111 find-sec-bugs ★ 2.5K

The SpotBugs plugin for security audits of Java web applications and Android applications. (Also work with Kotlin, Groovy and Scala projects)

112 nfcgate ★ 2.4K

An NFC research toolkit application for Android

113 Saturn ★ 2.3K

The vip.com's distributed job scheduling platform.

114 smart-sso ★ 2.3K

SpringBoot single sign-on authentication and authorization, implemented with OAuth 2.0, supporting cross-domain and distributed deployment.

115 client_java ★ 2.3K

Prometheus instrumentation library for JVM applications

116 tinkerpop ★ 2.2K

Apache TinkerPop - a graph computing framework

117 PlaceHolderView ★ 2.1K

This library provides advance views for lists and stacks. Some of the views are build on top of RecyclerView and others are written in their own. Annotations ar

118 microcks ★ 2.1K

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀

119 logbook ★ 2.1K

An extensible Java library for HTTP request and response logging

120 NewPipeExtractor ★ 2.0K

NewPipe's core library for extracting data from streaming sites

121 zfoo ★ 2.0K

💡Extremely fast enterprise server framework, can be used in RPC, game server, web server.

122 xxl-sso ★ 2.0K

A distributed single-sign-on framework.（单点登录框架XXL-SSO）

123 validator ★ 2.0K

The Nu Html Checker (vnu)

124 yas ★ 2.0K

YAS: Yet Another Shop, a sample microservices project in Java

125 oms-erp ★ 1.9K

一站式全渠道业务中台系统包括订单管理系统OMS/电商ERP、库存WMS统一管理系统和SAP财务管理系统等，实现快速部署，并帮助企业后续自主进行开发迭代，实现数字化转型，并有多个经典案例。中台系统包括：通用业务中台、强大的技术中台Springcloud/Istio、后续开发方案的设计，技术(K8S,SERVERLESS)

126 standard-webhooks ★ 1.8K

The Standard Webhooks specification

127 genie ★ 1.8K

Distributed Big Data Orchestration Service

128 kairosdb ★ 1.8K

Fast scalable time series database

129 dingo ★ 1.7K

A multi-modal vector database that supports upserts and vector queries using unified SQL (MySQL-Compatible) on structured and unstructured data, while meeting t

130 NettyGameServer ★ 1.7K

使用netty4.X实现的手机游戏分布式服务器,支持tcp,udp,http,websocket链接，采用protobuf自定义协议栈进行网络通信,支持rpc远程调用,使用mybatis3支持db存储分库分表，支持异步mysql存储，db保存时同步更新reids缓存。 使用ExcelToCode工程，将excel数据生

131 PDFLayoutTextStripper ★ 1.6K

Converts a pdf file into a text file while keeping the layout of the original pdf. Useful to extract the content from a table in a pdf file for instance. This i

132 serverless-java-container ★ 1.6K

A Java wrapper to run Spring, Spring Boot, Jersey, and other apps inside AWS Lambda.

133 akto ★ 1.5K

Akto is the fastest growing AI Security platform for your teams to secure AI agents, MCPs, LLMs, Agent skills, Gen AI apps in your organization.

134 hop ★ 1.5K

Hop Orchestration Platform

135 MaterialAbout ★ 1.5K

🔖 It's a material-design about screen to use on your Android apps. A developer profile and application information easy to integrate.

136 frostmourne ★ 1.5K

Frostmourne（霜之哀伤监控平台）是基于Elasticsearch, Prometheus, SkyWalking, InfluxDB，Mysql/TiDB，ClickHouse, SqlServer, IoTDB数据的分布式监控报警系统. Monitor & alert & alarm for Elastic

137 flogger ★ 1.5K

A Fluent Logging API for Java

138 fscrawler ★ 1.5K

Elasticsearch File System Crawler (FS Crawler)

139 Addax ★ 1.5K

Actively maintained fork of Alibaba DataX — a fast, versatile ETL tool for RDBMS/NoSQL data transfer

140 odd-platform ★ 1.4K

First open-source data discovery and observability platform. We make a life for data practitioners easy so you can focus on your business.

141 jfreechart ★ 1.4K

A 2D chart library for Java applications (JavaFX, Swing or server-side).

142 jasperreports ★ 1.4K

JasperReports® - Free Java Reporting Library

143 infinispan ★ 1.4K

Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.

144 XWiki ★ 1.3K

Open-source knowledge management and collaboration platform

145 Taier ★ 1.3K

Taier is a big data development platform for submission, scheduling, operation and maintenance, and indicator information display

146 jreleaser ★ 1.2K

:rocket: Release projects quickly and easily with JReleaser

147 arcadedb ★ 1.2K

ArcadeDB Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis. ArcadeDB is a conceptual fork of OrientDB, the first M

148 Juggle ★ 1.2K

一个零码 , 低码 , AI的微服务接口编排 & 系统集成的强大编排平台，支持Http , Dubbo , WebService等协议的接口编排，支持通过Groovy , JavaScript , Python , Java等多种脚本语言来增强流程，支持使用MySQL，达梦等多种常见数据源。

149 steve ★ 1.1K

SteVe - OCPP server implementation in Java. Your trusted open-source EV charging station management system since 2013. Used by CPOs, manufacturers and developer

150 fess ★ 1.1K

Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & sema

151 rebuild ★ 1.1K

最新版全面支持AI智能！通过自然语言操作业务数据，支持 Skills/工具/知识库/MCP。高度可配置化的国产企业管理系统，企业内部可免费商用！零代码/低代码快速搭建WMS库存管理、MES生产报工、CRM客户管理、HRM人事管理，以及 TMS/ERP 等

152 pairdrop-android ★ 1.1K

Android client for local file sharing via https://pairdrop.net and self-hosted snapdrop

153 ByteChef ★ 1.1K

Build AI agents and automate complex workflows seamlessly

154 product-apim ★ 1.0K

Welcome to the WSO2 API Manager source code! For info on working with the WSO2 API Manager repository and contributing code, click the link below.

155 zerocode ★ 1.0K

zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Dat

156 ejbca-ce ★ 967

EJBCA® – Open-source public key infrastructure (PKI) and certificate authority (CA) software.

157 skywalking-java ★ 928

The Java agent for Apache SkyWalking

158 nitrite-java ★ 921

NoSQL embedded document store for Java

159 scoold ★ 921

The Stack Overflow clone for your team (self-hosted or hosted)

160 product-is ★ 888

Welcome to the WSO2 Identity Server source code! For info on working with the WSO2 Identity Server repository and contributing code, click the link below.

161 seatunnel-web ★ 888

SeaTunnel is a distributed, high-performance data integration platform for the synchronization and transformation of massive data (offline & real-time).

162 WorkFlow-Engine ★ 865

工作流引擎对内提供单位/机关流程管理规则和内部业务流程的数字化落地实践；对外提供自动化地第三方业务驱动、接口接入和算法单元驱动能力。工作流引擎在提供底层驱动引擎的同时对全局透明监控、安全防御和国产化特色功能进行充分考虑，是内部流程管理和业务算法驱动的不二之选。

163 dns-proxy-server ★ 852

Solve your DNS hosts from your docker containers, then from your local configuration, then from internet

164 ical4j ★ 841

A Java library for parsing and building iCalendar data models

165 Structr ★ 828

Build complete web apps with integrated graph database

166 intellij ★ 818

CLion plugin for Bazel projects

167 livecontext-ce ★ 776

The AI automation platform, self-hosted. Describe the job in chat and LiveContext builds it: readable workflows, scoped AI agents, and small apps your team uses

168 opentrap ★ 775

A free, open-source alternative to Burp Suite: an intercepting proxy and web app security testing suite with Repeater, Intruder, Collaborator and a built-in OWA

169 davmail ★ 774

DavMail POP/IMAP/SMTP/CalDAV/CardDAV/LDAP Exchange and Office 365 Gateway - Synced with main subversion repository at

170 xxl-crawler ★ 756

A lightweight web crawler framework.（Java爬虫框架）

171 greenmail ★ 749

Official master for the Greenmail project

172 dd-trace-java ★ 738

Datadog APM client for Java

173 openmessaging-java ★ 723

OpenMessaging Runtime Interface for Java

174 databuff ★ 720

DataBuff is an AI-native APM built on Opentelemetry，with multi-agent troubleshooting out of the box.

175 stendhal ★ 706

Stendhal is a fun friendly and free multiplayer online adventure game with an old school feel.

176 PowerNukkitX ★ 683

Open-source, feature-rich Minecraft: Bedrock Edition server written in Java. Supports custom items, blocks, entities, full vanilla commands, advanced mob AI, an

177 jans ★ 656

The Janssen Project is a home for open source IAM components, featuring Auth Server (OAuth/OpenID), Agama low-code identity orchestration, and the Cedarling pol

178 api-gateway ★ 656

Java-based API Gateway bridging legacy and modern APIs with WSDL-to-OpenAPI, SOAP-to-REST, XML, OAuth2, and GraphQL.

179 scalecube-services ★ 639

Microservices library - scalecube-services is a high throughput, low latency reactive microservices library built to scale. It features: API-Gateways, service-d

180 JJazzLab ★ 608

A complete and open application for automatic backing tracks generation.

181 Spark ★ 606

Cross-platform real-time collaboration client optimized for business and organizations.

182 faction ★ 604

Pen Test Report Generation and Assessment Collaboration

183 webauthn4j ★ 599

A portable Java library for WebAuthn(Passkeys) server side verification

184 Vortex ★ 597

🌀 Discord Moderation Bot

185 mesh ★ 593

Gentics Mesh - The open source headless CMS for developers

186 jivejdon ★ 584

Jivejdon is a chain notebook with DDD/CQRS/Clean architecture

187 nextcloud-deck ★ 573

📋 Android client for nextcloud deck app

188 arex-agent-java ★ 572

Lightweight Java agent for traffic capture and replay, enhancing testing and debugging.

189 Smithereen ★ 548

Federated, ActivityPub-compatible social network server with friends, walls, and groups.

190 port-buddy ★ 536

Expose local ports to the internet in seconds

191 jxls ★ 533

Java library for creating Excel reports using Excel templates

192 pki ★ 514

The Dogtag Certificate System is an enterprise-class Certificate Authority (CA) which supports all aspects of certificate lifecycle management, including key ar

193 operaton ★ 513

BPMN-Process automation for everyone

194 ReplicaDB ★ 504

ReplicaDB is open source tool for database replication, designed for efficiently transferring bulk data between relational and non-relational databases

195 Gravitee ★ 466

Unified API, event, and AI agent management platform

196 ClearFlask ★ 450

Open-source ideation tool for product feedback management

197 Convertigo ★ 387

Low-code and no-code platform for business apps